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Memoranda for the Intelligence Advisory Committee Regarding National Intelligence Estimate 11-4-54, Soviet Capabilities and Probable Soviet Courses of Action Through Mid-1959, Part 2 of 3
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Memoranda for the Intelligence Advisory Committee Regarding National Intelligence Estimate 11-4-54, Soviet Capabilities and Probable Soviet Courses of Action Through Mid-1959, Part 2 of 3
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TOP SECRET IX. DEVELOPMENTS IN SOVIET AGRICULTURE* 55. The growth of Soviet agricultural production, particu- larly of basic foodstuffs, has lagged conststently behind the growth of Soviet industry throughout the postwar period, During the early postway period, when agriculture was recovering from war damage, gains were fairly easy to attain, but since 1950 agricultural although production has remained at approximately the prever level, though now ten than in 1940. the population 1s,about - percent higher , The inability of Soviet agriculture to advance over prevar Levels in the production or foodstuffs has been due to several factors, chief smong which ware: (a) teration and procurement policies which deprived broad seguents of the rural population or incentives for greater production; (b) inadequate capital investment, particularly during 1950-1952 when the Korean Var caused a diversion of resources to military production; (c) loss of adult males, particularly the skilled, to other branches of the economy; and (a) temporary dis- ruption accompanying the amalgamation of collective farms. 56. In response to this situation, the post-Stalin regime has embarked on a program to strengthen what it now admits to be * For graph showing trends in the 0388's production of selected agricultural eommodities, see Appendix B, Figure 6. - 38 - TOP SECRET TOP SECRET a weak link in the Soviet economy. The regine is attempting to increase agricultural output by: (a) providing greater incentives to the peasant population in the form of goods and payments; (b) changeling greater state investment to agriculture (75 percent more in 1954 than 1a 1953) in the form of mechanical draft power, mobinary, fertilizer, and building materials; (e) providing the farms with a greater supply of labor and of qualified technicians; (d) improving farm organization and practices; and (a) bringing under cultivation vast areas of sermiarid virgin land, particularly in Kuzakhstan and neighboring areas. This program 18 designed to rectify scre of the more pronounced shorteczings of previous agricultural policies, while leaving basically intact the collectivized system of Soviet agriculture. 57. In view of the Kremlin's public conditments to increase agricultural production, we believe that the Soviet regime will almost cartainly continue the new program through 1955. Mareover, since the goals nov set are unlikely to be achieved by 1956, the regins will probably continue the present program through 1959. However, the magnitude of resources allocated to agriculture will be determined by the Kremlin's estimate of its immediate strategic as 39 - TOP SECRET TOP SECRET requirements, particularly by the amount of resources the regine feels it necessary to allocate to the military establishment. 58. The response of the peasant population to the new program will be an important factor in determining the degree of its success. In attempting to stimulate the cooperation of the peasant pogulation, the Soviet regist faces serious problems. as the am hand, present concessions to the peasants may not provide suffi- cient incentives to bring about appreciably increased production, while further concessions might be considered by the regime as too costly or as politically inadvisable. On the other hand, greater reliance on discipline and coercion would tend to restore the conditions which the current program vas intended to remedy and would probably result in another period of passive peasant resistance, with adverse consequences on agricultural production. 59. The expansion of cultivation In the semiarid steppe regions places an additional strain on agricultural resources which may affect unfavorably the implementation of other goals. We believe that the plan goal of on additional 18 to 20 million mtric tons of grain annually from the nevly reclaimed land is most unlikely of achievement except under unusually favorable weather conditions, and that a yearly average of scale 6 to 10 million - 40 - TOP SECRIT TOK SECRET metric tons, with wide annual fluctuations, is more likely during the period or this estimate. 60. On balance, taking into account the program for both old and new lands, we believe that agricultural production 1s unlikely (assueing average weather) to increase by more than about three parcent annually during the period 1954-1959, making a total increase of 15 to 20 percent for tim whole period 1950- 1959 as contrasted with the Five Year Plan goal of about a 50 percent increase for the period 1950-1955. However, even the 15 to 20 percent increase would be large enough to achieve a moderate rise in the per capita availability of foodstuffs and textiles. X. DEVELOPMENTS IN SOVIET FOREIGN TRADE Trade Within the Bloe 61. The most important development in Soviet foreign trade since the end of the wax has been the extension of the basic Soviet policy of autarky to cover the area of the Bloc as a whole. As a result, Soriet trade with other Bloc states has steadily expanded and by 1953 accounted for roughly 85 percent of total Soviet foreign trade." The USSR is the largest trading * For trends in Soviet foreign trade, see Appendix B, Figure 7. - 41 - TOP SECRET TOP SECRET partner of the other Bloc states, accounting for at least 25 per- cent of each state's trade turnover. In three cases --- Bulgaria, Communist China, and Rumanie -- Soviet trade in 1952 represented more than half of the total. On the other hand, with the exception of Communist China, no one Bloc state accounts for more than 20 percent of Soviet trade turnover. This situation has made it such easier for the USSR to exert control over the economies of the various Bloe states. 62. This vast reorientation of the trade of Bloc countries has been the decisive factor in the postwar decline in East-West trade. The Soviet-style programs of rapid industrialization in the European Satellites have greatly increased requirements within the Bloc for those industrial and agricultural rav materials which formed a large part of Eastern Europe's traditional exports to the West. It is unlikely that any short-term expansion in the volume of trade between the Bloc and the West will alter the basic postwar trend toward greater trade and closer economic ties between the USSR and the Satellite economies. * As used here, the term "West" includes all countries outside the Soviet Bloc. me 42 - TOP SECRET TOP SPERET 63. Sino-Soviet trade has increased appreciably in the last almost four years, reaching about one-quarter of total Soviet trade turn- over in 1953. The USSR will probably export an increasing volume of capital goods and technical services to Communist China, partly in connection with the announced Soviet intention to assist the Chinese in constructing and equipping 91 new industrial installa- tions and 50 installations already under construction. Military equipment will probably continue to constitute a considerable share of Soviet exports to Communist China. However, the USSR probably will not grant substantial further credits to Communist China, like the $300 million provided in the 1950-1954 agreement. The USSR will probably insist on the financing of this trade, except possibly for some military items, through current exports to the USSR and European Satellites. Communist China's exports of agricultural products and industrial raw materials to the USER will contribute toward strengthening the economic base of the Soviet Far East. Soviet Trade Outside the Bloc 64. Soviet trade with the non-Communist world, as a result of the USSR's basic policy of autarky, has followed a long-run downward trend and reached its lowest point in 1950. In 1951-1952, . 43 - TOP SECRET MAY SWIRT however, the volume of Soviet trade with the West increased in response to the increase in world demand for rev materials and foodstuffs. In 1953, Soviet trade with the West again deelined, and the USSR was faced temporarily with an unfavorable trade balance, largely due to a sharp decline in Sovtet exports of grain. In order to finance even its small import program, the regime found it necessary late in 1953 to expand 1ts sales of gold, and to sell increased quantities of precious metals and petroleum to the non-Commenist world. 65. Despite the long period of rapid industrialization, the commodity pattern of Soviet trade with the West remains virtually unchanged. Grain, timber, and furs remain the principal export items, although the USSR has attempted to substitute such industrial cas materials as petroleum and mangenese for grain in its more recent trade agreements. Capital equipment, merchant vessels, and industrial raw materials have in the past constituted the bulk of Soviet imports from the West, although the USSR has recently contracted to purchase increased quantities of foodstuffs and manufactured consumer goods for delivery during 1954 and 1955. As in the past, there will probably continue to be spot increases - 44 - vor SECRET TOP SECRET in imports of selected consumer goods, but the composition of probably total Soviet trade will, retain through 1959 the traditional re- lationship between capital and consumer goods. 66. The outlook for an expansion of Soviet trade with the West depends on a number of factors. Even if Western export controls are further relaxed the Bloc's policy of autarky will almost certainly continue to prevent any large or lasting ex- pansion in East-West trade. Nevertheless, the record number of trade agreements concluded by the regime in 1953 points to an increase in Soviet trade in 1954 and 1955 in both old and new markets. Soviet officials have stated that the USSR could increase 1953 trade turnover with the West, estimated at about $800 million, by almost four times in 1954, Such an increase, In Sovjet trade with the West however, would place & tremendous burden on the small number of exporting sectors of the Soviet economy and would also require a major change in Soviet trade policy. To date there 16 no evidence that such & change is taking place or is likely to take place. Moreover, the Bloe would encounter considerable difficulties under normal economic conditions, in finding markets in Western countries for substantially increased amounts of its usual exports. In the light of all these factors, we 45 - TOP SECRET 101 believe that, even e the Scriet leaders are willing to expand trade appreciably, the probable of Soviet trade with the non-Commulat world for this period would probably be in the beigh- bornood of $1.5 billion annually 67. An additional and exceptional factor - the level of Bloc gold sales abroad -- might bring about a rise over current levels of East-West trade during the period of this estimate. The Bloc will probably continue to use gold to pay for an excess of imports. In recent years Bloc gold sales have run at an estimated annual rate of $60 to $80 million; in 1953, however, these sales reached about $150 million and apparently continued at a high rate during early 1954. At this rate receipts from gold sales enabled the USSR to finance over one-third of its 1953 commodity imports from the West. It appears that the increased gold sales were occasioned by balance of payments considerations and especially by a shortage of sterling within the Bloc. If the Bloc should decide to increase its gold sales abroad in order to obtain desired imports, then it has available gold reserves estimated at $3 to $5 billion and a current production variously estimated at from $200 to $350 million annually. We believe it unlikely that the Bloc would use any substantial portion of its gold reserves to raise the level of its imports during the period of this estimate. -46- - TOP 1 GOT SECRET XI. SCIENTIFIC AND TECNNICAL DEVELOPMENTS 68. Soviet scientiffc and tachnical capabilities have in- creased rapidly since World Wer 11, and we believe that they will continue to increase throughout the period of this estimate. The USSR has given science and technology & high priority, emphasizing particularly their contributions to basic industry and Kilitary capabilities. This emphasis vill probably continue during this period, although increased attention my be given to the application of science to agriculture, health, and Light industry so long as current programs for raising standards of living continue. 69. Soviet acientific and technological capabilities are sufficiently well developed to provide effective support to industrial and military research and development. At present, the scientific assets of the USSR (the number and quality of trained personnel, facilities, equipment, and (inancial support) are maller than those of the us, and the assets of the Scriet Bloo are far smaller than those of the West. However, with respect to scientists 05 the very top rank, whose numbers are for in any country, the USSR probably has in many fields sen who are an able as their counterparts in Western countries. The USER provides the bulk of Bloe scientific - 47 - SUBTOTAL TO: SECRET monets, but East Germany and Caschoelovakia, and to a lesser extent Poland and Hungary, contribute a substantial increment. Communist China is unlikely to add significantly to Bloe scienti- fie assets prior to 2960. 70. The USSR has a large number of organizations, laboratories, institutes, etc., engaged in research in all fields of science. Administration, control, and facilities appear in general to be sufficient for effective utilization of Soviet scientific talent. Althmigh the USSR continues to import SCHIP scientific instruments from Western nations, it 1s now manufacturing or can obtain within the Bloc practically all types of scientific instruments for labora- tory research, and also industrial instruments for plant operations and centrol. Complex research instruments and equipment are prob... ably less readily available in the USSR than in the US or the UK. Consequently, scase specialized research projects of Low priority are probably delayed Longer this similar projects would be delayed in the Western nations, but ve believe that high priority projecta are not hindered by lack of adequate equipment or facilities. 71. Prior to World Yes II the general quality of Soviet higher education and research in most scientific and technical fields vas markedly below that of the US. In the postwar period, however, it - 48 - TOP SECRET TOP SECRET has been generally good, and has approached US standards. Only in sceue areas of biology, particularly to the agricultural sciences, done it appear that the present quality of Seviet education and research 1. M decidedly below that of the US, but during this perial, in view of the probable greater emphasis upon agricultural develop- ment, this deficiency 1.a. likely to be reduced. 72. Nearly 1,400,000 Soviet citizens have scientific or sechnical degrees from colleges and universities, of whom about 500,000 graduated in the postwar years." The mamber of university or technical institute graduates employed 10 the scientific- technical field in the USSR (1,035,000) compares closely with that in the us. It is estimated that 155,000 Sortet scientists are engaged in advanced research or teaching at higher level institutions in the USSR, compared to about 240,000 so engaged in the US. At this level, considering physical sciences alone, the UGSR has 75,000 scientists, of whom 50,000 are estimated to be engaged exclusively Ln research. In the US, there are about 185,000 physical scientista in higher lovel institutions, and about 150,000 are engaged exclusively in research. * Mumerical estimates of Soviet scientific personnel are believed to be correct to within plus or adous 10 percent. For is detailed comparison of USSR and US scientific personnel, see Appendix C. - 49 - - TOP SECRET TO AMOUNT 73. During 1954 and 1955 the USSR will probably graduate about 225,000 students of science, including about 140,000 In the physical sciences and engineering, as compared with 135,000 graduates, including 65,000 in the physical sciences and engineering in the US, We believe that during the period of this estimate the Soviet acientific manyover pool will increase more rapidy than that of the us, although at * declining rate after 1955. However, In view of the increasing acientific demands within the Bloc, is shortage of scientific and technical personnel, altbough reduced, will probably continue throughout the period of this estimate. 74. The USSR is not as well supplied with technicians, mechanics, and unintenance as are the Western countries, where broader sections of the population have acquired mechanical skills over " considerably longer period. Standards of mintebance for all himis of Bachanized equipment are probably considerably lower then in Western countries and rates of deterioration higher. In addition, the number of skilled amountics and technicians which vould be available to the number forces in was 1s far sumiller than in the Heat. However, Soviat engineers have sought to compensate for these deficimentos by building machines and equipment which are simple In design and easy to mulutain and repair. - 50 - TOP SHORET TOP BECRKE 75. Soviet science and technology are subject to the sem: centralized planning and control as are all other Seviet acti- vities. Even though Soviet scientists are a privileged group, their research is subject to many of the usual totalitarian res- trictions. Some theories in chemistry, physics, and especially biology, have been attacked on ideological grounds. Eowever, the present veakonss in certain fields of biological science 10 probably due more to the beavy emphasis laid on other flelds of research than to ideological restraints. There 18 no evidence that ideology has seriously hampered the development of the physical Neiences, especially in applications directly affecting military vespons. XII. SCIENTIFIC AND TECHNICAL CAPABILITIES IN PARTICULAR FIELDS AFFECTING MILITARY CAPABILITIES 76. The capability of Soviet scientists and technicians In most areas related to the development and production of weapons and military aquipment is sufficient to insure modern ATTUS to Soviet forces. We believe the USSR has the scientific and technological capability necessry to develop nost weapons and military equipment equivalent to, and in certain cases possibly better than, those TS , 1 TOP SUBRET TOP SECRET of other nations. However HD believe that the USSR does not have sufficient depth of scientific resources to program vigorous weapons and equipment research simultaneously in all fields. Important weapons developments which the USSR may achieve during the period of this estimate are discussed below.* Nuclear Weapons 77 By the end of 1953 the USSR had tested small, medium, and large-yield nuclear weapons, and had employed thermonuclear boosting principles to produce energy yields in the range of the equivalent of a few thousand to at least one million tons of TNT. By the end of 1953, moreover, the USSR had reached a point in weapon technology at which it was capable of producing a wide variety of weapon types, and nuclear warheads for weapons other than bombs. 78. Within these technological capabilities, military requirements will govern the allocation of available Soviet fissionable material among various types and yields of weapons. We believe that the USSR will stockpile weapons of large, medium, and small yields; Column A in the Table which follows represents one method of distributing the estimated Soviet stock of fissionable material among them. Columns B and C show the total yields that would be available if the same amount of fissionable material were made up either into large and medium yield weapons only (Column B), or into small-yield weapons only (Column C). # The effects of these possible developments on Soviet military capabilities are discussed in Section XVII. TOP SECRET Mid-1954 A B C Large-yield weapons (1,000 KT each) 18 18 - Medium-yield weapons (60 KT each) 85 170 1 Small-yield weapons (5 KT each) 250 - 725 Total vield (millions of tons of TNT) 24.3 28 3.6 In view of the range of error applicable to our estimate of Soviet fissionable materials production, actual figures for numbers of weapons may be as much as one-third lower or higher than the figures given above. 79. The Soviet stockpile of fissionable materials will grow during the period of this estimate. Assuming that the Soviet weapons stockpile continues to consist of weapons of the general characteristics and explosive powers of those tested through 1953, the following table illustrates one way in which the weapons stock- pile might be made up through 1957. Mid- Mid- Mid- Mid- 1954 1955 1956 1957 Large-yield weapons (1,000 KT each) 18 34 54 80 Medium-yield weapons (60 KT each) 85 125 175 235 Small-yield weapons (5 KT each) 250 375 525 700 Total vield (millions of tons of TNT) 24.3 4304 65.6 97.5 Our estimate of the total Soviet fissionable materials stockpile becomes more uncertain as it is projected into the future, and the TOP SECRET actual figures for mid-1957 may be as low as one-half or as high as twice the figures given in this table. Moreover, we estimate that by 1957 the USSR will have nuclear weapons with yields ranging from the equivalent of one-half a kiloton of TNT to the equivalent of 10 megatons or more. Availability of these weapons will introduce further possible variations into the stockpile examples given above. 82. The/numbers of/weapons above are calculated from the most probable size of the Soviet fissionable materials stockpile. However, in view of the range of error applicable to the estimates of Soviet fissionable material production, the actual figures for the end of 1953 may be as much as one-third lower or higher than the figures given above. Uncertainty increases as estimates are projected into the future and the actual figures for mid-1957 may be as low as one-half or as high as twice the figures given in the tables. 82 The USSR will probably continue work on small-yield and small dimonsion weapons, and further developments along these Lines could be tested during 1954. In view of this, the USSR could develop nuclear warheads for weapons other than bombs during the period of this estimate The USSR will probably also continue work on the development of weapons with energy yields well in excess of . million tons of TNT. This program could possibly result in a test in 1954. 54- TOP SECRET Paragraphs 80 - 83 82 not insluded TOP SECRET 83 80. There is no evidence available which indicates the course that the Soviet atomic energy program will take during the period 1957 through 1959. Nor are there any specific factors which can be considered as limiting on the growth of the program during this period. Nevertheless, long-range «xtrapolations can be carried out on the basis of assumptions of the growth pattern the program might follow during the period in question. Alternate assumptions, which indicate & range of growth capabilities, are: 2. No expansion of Soviet fissionable materials production facilities after 1957; (Ig b. Continued expansion of Soviet fissionable materials pro- duction facilities after 1957 at the same rate as estimates for the period 1954 to mid 1957, or C. Expansion of the Soviel. program after 1957 at a rate which will increase its requirements for uranium to approximately 7,000 to 10,000 tons par year by 1964. 84 sto The Soviet fissionable materials stockpile estimated for 1959 above on the basis of the/ assumptions could be congarted into weapons of the following types, based on the principles tested through 1953. Examples of such conversion follows -55- TOP SECRET TOP SECRET 1959 Assumption Assumption Assumption A B C a) Unboosted weapons 40 KT each 1250 1355 1700 Total yield (million tons TNT) 50 54 68 or b) Boosted U=235 1000 KT each 132 145 168 Boosted Pu 60 KT each 350 375 510 Boosted Pu 5 KT each 1050 1125 1525 Total yield (million tons TNT) 158 172 206 by The alternate assumptions on which the above table is based do not consider the possibility of rapid technological advances in the production of fissionable materials, nor do they reflect major advances in weapons development which must be anticipated. Developments in thermonuclear weapons with yields well in excess of one million tons of TNT, which could possibly be tested during 1954, could increase the total yield obtainable from the Soviet fissionable material stockpile by a factor of five to twenty-five over the figures given in Paragraph 840 In addition, Soviet nuclear capabilities may be increased by weapon developments which will permit the adaptation of nuclear warheads to many delivery systems. - 56 a TO P SECRET TOP SECRET Guided Missiles* 8 6 83. Indications are that after World War II exploitation of German developments in guided missiles led to the Soviets acquiring by 1948 a thorough familiarity with German program and by 1950 8 capability for continuing work independently, except possibly in advanced developments of guidance and control systems. It is known that an independent Soviet research and development program is under- way. However, evidence is insufficient for an estimate of the priority which this program may enjoy as compared with other weapons development programs, or of the priorities accorded the various guided missile categories within the program. It is well within Soviet capa- bilities to develop numerous types of missiles within the period of little this estimate, but at present we have no information as to which types the USSR may be developing.em & priority basis: 87 St. We believe that the USBR could now have an improved version of the German V-1 pulse-jet winged missile with ranges up to 200 neutical miles, a warhead of 2,000-3,000 pounds and a CEP of 2 to 3 nautical miles. The USSR could also have now an improved version of the German V-2 with ranges up to 350 nautical miles, a warheed of 2,000 pounds, and & CEP of 2 to 3 nautical miles. We have no firm evidence that the USSR has these weapons in operational quantities. The following paragraphs Pall types of must quided be considered musiles and tentative. * Detailed studies of this subject are currently in progress and will provide the basis of NIE 11-6-54 "Soviet Capabilities and Probable Programs in the Field of Guided Missiles," scheduled for production in the third quarter of 1954. - 57 - TOP SECRET TOP SECRET 88 85. During the period of this estimate we believe that the following surface-to-surface missiles could be brought by the USSR into limited operational use -- 1.e., into & stage of development where small quantities of guided missile systems have been produced and are in the hands of trained personnel of at least one operational unit. It should be realized that subsequent large-scale production and troop-training may require several additional years. The dates assumption given are the earliest probable dates, and are based on the estimate that a concerted and continuous effort started by 1948. 8. In 1955 the USSR could have an improved V-2 type missile with a range of 500 nautical miles, a war- head of 3,000 pounds, and & CEP of 2 to 3 nautical miles. Subsonic, turbo-jet powered pilotless aircraft missiles with a maximum range of 500 nautical miles and a warhead of 3,000 pounds could also become available in 1955. b. In 1957,* the USSR could have single stage ballistic missiles capable of ranges up to 900 nautical miles, carrying 3,000 pound warheads, and achieving a CEP of 3 to 4 nautical miles. Director of Intelligence, USAF believes this missile could be available in limited operational quantities in 1955, and that a ballistic missile with a range of about 1300 nomo could be available in limited operational quantities in 1957. This belief is based on intelligence of early Soviet exploita- tion in Germany, on Soviet interest in guided missiles up through 1952, and the demonstrated ability to follow a concerted development program as witnessed by rapid developments in aircraft, armament, and electronics in the past 8 years. It 18 also possible that accuracies better than those quoted will be within Soviet capability. -58- TOP SECRET C. In 1958-1960," the USSR could have a two stage ballistic mautical missile capable of ranges up to 1,300,miles carrying a 3,000 pound warhead and achieving a CEP of 3 to 4 nau- tical miles. 89 85. Our estimate of probable Soviet military requirements suggests that the priority accorded by the Soviets to development of a surface air missile would be at least has high as that given development of a surface to surface missile. We believe that the USSR could now have a surface-to-air missile representing an improved version of the German Wasserfall missile, and having an effective range of 20,000 to 25,000 yards at fifty thousand feet. & Fader a command technique or proximity fuze could be employed with a warhead of approximately 600 pounds. There is no evidence that such & weapon has been produced in operational quantities. 90 87 so. In estimating future Soviet capabilities in surface-to- air missiles, the projects undertaken by Germans while in the USSR offer the only basis for extrapolating into the future. On this foundation, the following possibilities exist: a. In 1955, a further improved Wasserfall missile with effective accuracy at 35,000 yards, the maximum range of the missile. Footnote on preceding page. - 59 - TOP SECRET TOP SHORTS b. In 1957-1958, a new type missile should begin to re- place the Wasserfall, with a maximum effective range of 50,000 yards at 60,000 feet altitude and a war- head of of about 500 pounds. This missile would incorporate terminal homing. Aireraft 88 $1. The USSR will probably continue to give high priority to the development of new aircraft, especially jet types. During the period of this estimate Ve believe that the Soviet aircraft industry will be technically capable of completing development and placing in series production an all-weather jet fighter (1954), a turbo-prop heavy bomber (1954), a jet ground-attack aircraft (1955), and a turbo- jet heavy bomber (1957). Moreover, improvement of certain aircraft estimated to be entering production at present, including the recently introduced jet medium bonber, will result as modificatious are made and as more advanced electronic equipment, and improved turbo-jet engines become available during this period.* Electronics 92 88 92. The USSR has made substantial progress in expanding its electronics industry and in adapting Western equipment. The industry * See paragraphs 132-136 for a discussion of Soviet aircraft currently in operational use or in various stages of development. - 60 8 TOP SECRET TOP SECRET is now capable of independent research and development, and electronic equipment of modern design is being produced. We believe that during the period of this estimate the USSR will have the capability of developing new or improved versions of radars for early warning, ground control intercept, airborne intercept, and blind bombing and navigation. 93 89 -93. Early Warning Radar (EW). The USSR has a large variety of EW radars in use. These include World War II sets, native sets based on Western designs, and sets of purely native design. It is believed that most of these sets will continue in use through 1956. Continued use of low-frequency radars (in the 72 me/s region) through 1959 is indicated. It is estimated that, by 1958, the USSR will have several types of EW radar capable of affording fairly reliable range coverage up to altitudes of the order of 60,000 feet. These radars should be capable of detecting medium bonbers and fighters at meximum ranges of about 200 and 100 nautical miles respectively, although specific range performances will vary with altitude and with individual equipment and installation. Low angle coverage will still be a problem, although current use of SCR-682 type radar for such coverage in coastal areas may be expected to expand. The filtering phase of air raid reporting (sombat information control) is expected to continue to be & major problem during the period of this estimate. - 61 - TOP SECRET TOP SHOPET 94 go 94. Ground Control Intercept Radar (GCI). It is estimated that by 1958, the USER will have GCI radars of several types, including the V-beam sets presently in use, which should be capable of coverage on medium bombers at maximum reliable ranges of 150-200 nautical miles and on fighters at maximum reliable ranges of 55 to 85 nautical miles depending on altitude, location, and other factors. The use of transponder beacons in Soviet interceptor aircraft, a development of which the USSR is capable, would increase range and altitude coverage for controlled interception. Maximum reliable altitude coverage up to 60,000 feet, though at less than maximum ranges, can be expected by 1959. 95 H 95. Airborne Intercept Radar (AI). The USSR acquired World War II airborne intercept radar equipment from the Germans and through lend-lease. The USSR has the technical knowledge and production capa- bility to produce AI redar superior to World War II types, as well as passive detection equipment of electronic, infrared, and possibly sonic types. We believe that the USSR has begun to introduce limited quantities of AI equipment into operational use, and it is estimated that AI equipment will be in general operational use by mid-1956. 96 96. Blind Bombing and Navigational Radar. The USSR is making operational use of an X-band set and has the capability of improving this type of equipment. Its best blind bombing and navi- gational radar in use by the end of 1957 will probably be capable of - 62 - TOP SECRET TOP SECRET operating at altitudes up to 50,000 feet and will have a range of about 125 nautical miles for navigation. The performance of bombing and navigation equipment will be about equivalent to that of present Western equipment. The use of frequencies higher than X-band is unlikely before mid-1956, but might have operational significance by-1959. Electromagnetic Weapons m The TISSR now has the canability 22 97 The USSR now has the capability of seriously disrupting Western long-range radio communications and certain navigation systems. On the basis of known or reported Soviet production of magnetrons, we believe that the USSR can now produce ground-based, shipborne, and airborne jamming equipment to cover frequencies through 10,000 megacycles per second. However, Soviet capabilities in related electronics fields indicate that the USSR could develop equipment for jamming frequencies up through 30,000 megacycles per second. We believe that such equipment will probably be in use during the period of this estimate. achieve some success in electronic camouflage. Effective devices similar to WINDOW and other reflectors-could be in operational use. $ 63 - TOP SECRET TOP SECRNT Biological Weapons 98 94 98. The USSR has the technical knowledge, trained personnel, and facilities necessary for a program. of research and development in biological warfare, and we believe that such & program is almost certainly in progress. Firm evidence on the subject is, however, exceedingly scanty, and is likely to remain so because of the rela- tive ease with which such a program can be concealed. Our estimates must be almost exclusively of what the USSR is capable of accomplishing in this field, rather than of what is has in fact accomplished. 99 75 -99. The USSR is capable of produc:ng BW agents and disseminating devices suitable for clandestine attacks against certain crops, against livestock, and against personnel in buildings or concentrated in relatively small areas. We estimate that, if the USSR in fact develops this capability, such attacks could be highly effective against livestock, moderately effective against humans, and possibly damaging against crops under favorable environmental conditions. 100 96 100. Soviet capabilities for ove:t or large-scale attacks with biological weapons are more difficult to estimate. Against livestock, attacks whether overt or :landestine need not be of large-scale to be effective, since vell-planned small-scale operations at several points against the US would probably result in widespread - 64 TOP SECIPT TOP SECRET epidemics. Anti-crop BW against the us, employing disease-producing agents, would probably not substantially affect U. crop production unless carried out on a very large scale and unde: favorable seasonal and environmental conditions. The USSR is probably capable of pro- ducing at least one type of agent, cereal rust, in amounts needed for such an attempt. For attacks against personne' the USSR is probably capable of producing BW weapons for operations on & large scale, but - are unable to estimate whether the effect of such operations, if carried out, would be likely to be significant. of 101 AT 101. Soviet capabilities for defense agrinst BW are believed inferior to those of the US because of Soviet deficiencies in public health, sanitation, livestock management, and plant protection. Present information indicates emphasis on corection of these de- ficiencies, and itris estimated that gradual rogress in this probably direction will, be makde during the period of :his estimate. However, because widespread shipment of livestock is not practiced in the USSR, Soviet vulnerability to small-scale ant: livestock attacks is probably less than that of the US. Chemical Weapons 10298 102. During World War II, the Soviet Union is known to have produced most of the standard chemical warfere agents as well as the necessary suxiliary equipment. The USSR has the facilities and - 65 - TOP SECRET TOP SECRET scientific knowledge necessary to produce at least one of the nerve gases and could employ these agents during the period of this esti- mate. Published Soviet research in fields closely allied to chemical warfare -- organophosphorus chemistry, aerosol formation, cholinesterase, alkaloids, and adsorption - indicates & scientific capability for the development of new or improved chemical agents, dissemination equipment, and protective devices. We assume that the stockpile of standard agents and munitions accumulated during World War II has been maintained and that the facilities for CW agent production are being maintained on a stand-by basis or operated to produce other chemicals or materiel. The USSR is probably able to engage in chemical warfare on . large scale. Radiological Weapons 103 29 103. It is most unlikely, for technological reasons, that the USSR will be able to stockpile militarily significant quantities of radiological warfare weapons during the period of this estimate. Although not strictly within the category of radiological warfare, the significance of radioactive fall-out following large nuclear explosions becomes greater as the yield of nuclear weapons increases. This factor should be considered in connection with Soviet capabilities to produce explosions in the megaton range. XIII. SOVIET BLOC MILITARY STRENGTH General TOO 104 204. In the postwar period the USSR has maintained its armed forces at a high level of strength and combat readiness. Since - 66 - TOP SECRET TOP SECRET 1945, the forces of the East European states under Soviet control, together with the forces of Communist China, have been added to the military resources available to the Soviet leaders. Soviet about 8,000, 8, 000 Bloe forces-in-being nov total nearly 9,000,000 men.* 105 for 103. As a result of the levelling off military expenditures in 1953, selective cutbacks are probably taking place in the pro- duction of some conventional armaments, many types of which are already stockpiled in quantity. Nevertheless, military procurement, even at the estimated 1953-1955 rate, would still permit the main- tenance of the Soviet armed forces at present high levels and would allow continuous qualitative improvement in weapons and equipmen'. 106 1020 106. During the period of this estimate we believe that the size of Bloc forces-in-being and expenditures for wayons pr duction will remain substantially unchanged. However, the over-all affective- Soviet armed forces ness of Bloe ground, naval, and air forces- will almost certainly con- mainly because of tinue to increase during the period of this estimate as a roult of the following factors: an increase in the mumbers and types of nuclear weepons; and increase in the numbers of modern aircraft, especially bombers and all-weather fighters; an increase in the Long- range submarine forces; progressive modernization and stantardization For detail on strengths of UBSR armed forces and those of other members of the Soviet Bloe, see Appendix D, Table 1. - 67 - TOP SECRET TOP SECRET of wespons and equipment, particularly those incorporating electronic guidance and control; increasing combat efficiency of the European Satellite and Chinese Communist forces; and some improvement of the Bloe logistical position including facilities and possibly stocks of essential war material. 10705 109. The principal limitations of Bloe armed forces during the period of this estimate will be: deficiencies in experience, training, and equipment for long-range air operations and air defense; lack of capability to conduct long-range amphibious and naval operations and the logistic problems, especially for operations in the Far East, arising from the size of Bloc territory and the relatively insdequate road end rail network and merchant fleet. The ecubat effectiveness of the Eastern European Satellite and Chinese Communist forces VII remain inferior to that of Soviet forces. XIV. BLOC GROUND FORCES Soviet Army ,08 104 108. The Soviet Army has been recrganized and modernized since the end of World War II. We estimate that the Soviet ground forces now total about 2,500,000 men. The estimated maximum mobilization potential is about 12,500,000 men. In the absence of general var we believe that the Soviet ground forces will remain at approximately as 68 - TOP SECRET TOP SECRET their present size and disposition through mid-1959.1/ The concen- tration of Scviet ground forces in East Germany, the Western USSR, the Caucasus, and the Far East provides for the defense and security of the most important and vulnerable areas of the USSR. 109/s 109. The Soviet Army probably has a sufficient stockpile of weapons and equipment, ammunition, and supplies (except POL) to main- tain a force of 175 line divisions in Europe and Asia for an extended period (1.e., up to one year, depending upon the intensity of the combat). POL stockpiles are probably sufficient to maintain operations from four to six months. The USSR is DCM marufacturing substantial quantities of all types of basic ground force weapons During the period of this estimate production of ground force veapons is not expected to increase, and may decline somevhat. Conversion to full- scale production of these weapons could probably be effected quickly and efficiently. 110 106 110. The combat effectiveness of the Soviet Army is high. Its senior command is able and experienced; Junior officers can be expected to execute orders faithfully; the individual soldiers are courageous, and have good physical stemine. Discipline is good and morale almost certainly high. Current Soviet line divisions possess For detailed estimates of strengths and dispositions of these forces, see Appendix D, Tables 1 and 2. 2/ For estimated 1953 production of tanks and artillery, see Appendix D, Table 5. - 69 - SECRET TOP SECRET good equipment, generally of World War II design, in adequate quantity. The combat support services -- artillery and engineers -- are comparable to the quality of the Soviet Army as a whole. Mobilization would lower individual unit efficiency but the rapid increase in the numbers of units would tend to offset this even in the short term. 111. During the period of this estimate the readiness of Soviet ground forces for sustained combat will continue to grow, largely maneuverability because of the increase in arnament, mobility, and numbers of competent and The USSR will probably also develop changes in the equipmentation Du technicians., Thirty Soviet divisions are located in East Germany and ground the European Satellites. It 1s known that these units are well-equipped, a well-trained, and combat ready. Intelligence concerning the remaining their unprove my in divisions, particularly those in the interior of the USSR, is not as worfare. mucker extensive. However, ve believe that the latter are not significantly inferior in effectiveness to the Soviet forces in East Germany and the Satellites. 112. Certain weaknesses of the Soviet Army will continue to limit its potential under full war requirements during the period of this estimate. The great extent of Soviet territory and the 11nd- tations of the road and rail networks present difficult logistic problems, especially for operations in the Far East. The Army lacks experience in large-scale combined amphibious operations, and - 70 - TOP SECRET TOP SECRET it has never conducted successful large-scale airborne operations in wartime. The Army would suffer from a shortage of technicians in the event of full mobilization. Somet Security Frees 113. Soviet internal security forces are controlled by the Ministry of Internal Affairs. We estimate that these forces number about 400,000 uniformed men organized in military units. About 150,000 of these are in the border troops, disposed along all acces- sible land and sea frontiers. The remaining 250,000 include: troops responsible for suppressing any organized resistance in the country, for guarding shipments of prisoners and strategic cargoes, and for maintaining the security of high-level government and military communications. These troops are a select group, well-trained and equipped, and politically loyal to the regime. European Satellite Armies* 114. Satellite ground forces, now composed of 1,115,000 men organized in 82 line divisions, constitute a substantial addition to Soviet military strength in Europe. During the period of this estimate Satellite ground personnel strength will probably increase to about 1,265,000. The Satellites are almost completely dependent on the USSR for major equipment items, including tanks, self-propelled * For detailed strength figures by country see Appendix D, Tables 1 and 2. - 71 - TOP SECRET TOP SECRET gune, heavy artillery, and some light artillery. No substantial var reserve stocks of undern equipment have been made available to the Satellite countries. By mid-1956 the Satellite armies will be almost completely equipped with equipment of Soviet origin and design, mostly of Soviet World War II standard. Although some quantitative and qualitative improvement of weapons inventories will probably cecur during the period of this estimate, major defi- ciencies in motor transport, heavy armor, artillery, and CORMU- nications equijment will probably continue. 115. During the postwar period the Satellite forces have been TV:OT Tanized to conform to the Soviet pattern. However, the national units whibit market differences in training, equipment, and morale, and the.r combat effectiveness is greatly inferior to that of equi- valent Nov et units. The Bulgarian Army is considered the best of the Satellit forces, followed by those of Hungary, Czechoslovakia, Poland, humani, East Gerasny, and Albania. The combat effectiveness of Satellite force will improve, but It 1s unlikely that many of the will remain only fair. It is unlikely that many of its divisions would be uitable for offensive operations. Moreover, in case of var the SateRite forces would be dependent upon the USSR for logistical support. 116. Possible policil - reliability within of the Satellite The questimable armies significant their military usefulness. armed forces places 8, lim :ation upon Bloe military capabilities. At present the Kremlin could robably not rely upon the majority of the 72 (i) for SECRRITY TOP SECRET Satellite armies in a general war except for employment in secondary roles or in a defensive capacity. However, against traditional enamies (e.g., Poles and Czechs against Germans; Bulgarians against yugralavs, Greeks, and Turks) Satellite arades would probably fight well, at least as long as victory appeared likely. Chinese Communist Army* 117. During the period of this estimate the Chinese Communist 2,012,000 Field Forces, which now number an estimated 2,041,000 men, will probably increase to about 2,385,000. Chinese Public Security Forces total approximately 1,000,000 men. However, the wide dispersion of these forces on security duty, their light equipment, and lack of unit training limit their combat potential to employment as local auxiliaries to the field forces. Communist China has no system of organized re- serves and the estimated 6,000,000 to 20,000,000 men in the militia cannot le classed as trained reserves since they receive little mili- tary training and have almost no equipment. Further mobilization of Chinese forces would be largely dependent upon acquisition of veapons and equipment. 118. The Chinese Communist forces are basically infentry not their waspons are a haterogensous assortment of European, American, - For details as to strengths and disposition, see Appendix D, Tables 1 and 2. For strengths of additional Bloc forces in Asia, see figures for North Korean and Viet Ninh armies given in the BEEN tables. - 73 - 7 200 SECRE Japanese, and Soviet navufacture. Extensive Soviet equipment of Chinese forces has taken place since the beginning of the Korea War, but this aid, vidle continuing, bas probably liminished since hostilities certify The marked disparity between the equipment of average Chinese Communist and Scriet divisions will probably not be reduced significantly during this period. Moreover, in came of var the Chinese Communists will continue to be heavily dependent upon Soviet logistic support and technical nid. 119. The Chinese Communist Arwy is well adapted by tradition, training, and the characteristics of its individual soldiers to was type of warfare likely to be encountered in the extremes of wether and terrain of the Asian region. Morale within the Chinese nist forces appears to be high. The conbut effectiveness of the troops which fought in Korea (over 50 percent of total Chinese forces) vas fairly high despite major deficiencies in logistics, communications, and combined-arms technique. During the period of this estimate combat effectiveness will probably increase. However, deficiencies in training, equipment, and logistical support, and dependence upon outside aid will continue to be major limiting factors upon the full exploitation of the organized Chinese mempower strength. XV. BLCC NAVAL FORCES* Soviet Havy 120. In comparison with two of the YIS the Soviet surface fleet during the period of this estimate will remain 1 deficient 4 For strengths in ships and personnel ES well as disponitions ISS Appendix D, Tablas 1 and 3. TOP SECRET in capital ships, and almost certainly without aircraft carriers. However, the Soviet submarine fleet is large and growing, containing many long-range craft of which a significant and increasing proportion are of modern types. Most of the major surface vessels and all of the modern submarines will probably be kept active, and the present rate of new construction will permit the creation of a substantial reserve fleet. It is believed that all such reserve or inactive units could be activated. by M + 180. 121. The Soviet Naval Air For st, comprising approximately 18 # percent of the total strength of Soviet military evintion, 28 equipped with modern Jet aircraft of the fighter N/A 11gm bother 88 well as piston engined attack, mine nac torpedo, not type aircraft. This force is expected to remain approctantaly codetent in strength throughout the period of this estimate: however, improved all-weather Jet fighters will probably be introduced. 122. Since 1946, 9 light cruisers, 75 fleet destroyers, and 65 long-range submarines, all of postwar construction, have been ideas to the fleet. Naval construction 11 the USSR is presently estimated at about 175,000 NSDT which represents about one-third Sordet especity, and one-fifth total Bloe capacity. Battleships not carriers could be built in all fleet areas except the Far East. 75 TOP SIGNE TOP SECRET There are a few indications of the construction of a ship larger than a cruiser, and such a vessel could become operational during the period of this estimate. We believe, however, that the USSR will place primary emphasis upon the construction of destroyer types and long-range submarines. 123. The Soviet Navy is apparently concentrating on the con- struction of two long-range submarine types developed since World War II. These are equipped with snorkel and have operating radii of about 4,700 and 6,700 miles respectively. By early 1954, 47 of these had joined the fleet and the present building rate is estimated as 46 per year. The Soviets are known to have continued development of the Walther closed-cycle engine for submarine propulsion and an experimental submarine powered by such an engine could be operational during the period of this estimate, DOW. It is also possible that, by mid-1959, nuclear propulsion for submarines will have been developed by the USSR. However, there is that the USSR is constructing no evidence of Soviet development of submarines equipped with either of these types of propulsion. 124. Soviet naval. capabilities can be expected to improve throughout the period due to the building program, technological development, and intensive training. While the operational effi- ciency of the Soviet Havy is still below that of the navies of the major Western Powers, it will continue to improve during this period. Little is known of the operating efficiency of the Soviet submarine - 76 - TOP SECRET TOP SECRET force. It is probably still inferior in proficiency to the us and German forces of World War II, but performance standards should steadily rise during this period. Personnel of the submarine force are the pick of the Soviet Ravy, and their morale in high. 125. The principal weakness-of the Soviet Navy derives from the wide physical separation of the sea frontiers of the USSR. The inability of the USSR to control the water routes between these areas forces it to maintain four separate fleets and supporting facilities. This seriously complicates administrative control, logistic support, and strategic mobility, although the development of the inland waterway system and the increased use of the Northern Sea Route now permits some interchange of vessels by routes under Soviet control. The lack of adequate supply lines to the Northern and Far Eastern areas is an additional handicap Other weaknesses derive from the land-locked positions of the Baltic and Blck Sea fleets, which make egress to the world sea-lanes difficult for both surface and underwater units, and the lack of advanced submarine bases to provide support for long-range boats. The long-range capabilities of the Soviet Navy are also hampered and by lack of aircraft carriers, modern capital ships,/auxiliary vessels suitable for underway logistic support, and by lack of operating and combat experience in long-range operations. on 77 - FOR BACKET TOP SECRET 126. There is no force in the Soviet Navy comparable to the amphibious forces of the US Navy, although the naval infantry compo- nents have received some training in amphibious warfare. While capable of mounting short-range lifts in considerable force, the Soviet Navy does not possess sufficient modern amphibious craft to launch and sustain long-haul amphibious operations. Satellite and Chinese Communist Navies 127. The Satellite and Chinese Communist Havies, including their naval air forces, during the period of this estimate will remain small. The naval forces of the Satellites will probably be capable of aiding the Soviet Navy in minesweeping, minelaying, escort, and coastal defense duties. The Chinese Communist Navy, although small and ill-equipped, is capable of short-haul amphibious operations, coastal mining, notor tarpedo attacks, limited escort work, and minor ganfire support. The Soviet Far Eastern naval forces are providing training, advisors, and logistic support to this force. XVI. BLOC AIR FORCESX Soviet Air Force 128. During the postwer period the USSR has maintained and continually improved its large air force. Although in World War II For strengths of Bloo air forces in aircraft and personnel, see Appendix D, Tables 1 and 4. - 78 - MOD TOP SECRET the USSR VALUE giving primary emphasis to the ground support role of air forces, in the postwar period increasing attention blue been given to the development of the interceptor nod strategic bombing arms. Ro- equipment with jet fighter types proceeded rapidly 10 the period 1950-1953 and 10 now virtually completed. Replacement of the 20-4 aircraft by more modern types in the long-range bonber force, and the growing numbers of all-weather jet fighters will almost cartainly be the most important developments in the Soviet air forces during the period of this estimate. 129. The Soviet aircraft industry has accounted for about 95 percent of total Bloe aircraft production in the postwar pariod. Estimated Bloe production of fighter and bother aircraft during the period 1946-1953 has been roughly equal to that of the SATO countries 1a numbers of aircraft, although substantially balow that 05 NATO in terms of total airframe weight.* During 1952-1953 Soviet Bloo pro- duction of fighters and bombers, both in numbers nod vasialit, Most considerably below that of NATO. During the period of this estimate Soviet aircraft industries will probably continue to operate at about 30 percent of capacity, with BE: anoual production of sbout 5,500 6,500 10,000 to 12,000 aircraft, including about 5,000 to 6,000 combat aircraft. Aero-engine industries will probably continue to 30,000- operate 35 36- 35,000 at about 30 30 percent of capacity with a total output of about 40,000 * See Appendix D, Table 6. - 79 - for LICNEY TOP SECRET engines, including about 15,000 combat types In view 08 the factor of obsolescence and of the high requirements of the operating forces, these rates of production are insufficient to permit any significant stockpiling of aircraft, engines, and electronic devices. 130. Airfield development in the USSR and the European Satellites during the postwar period has kept pace with demands created by the introduction of jet aircraft and medium bombers into operational units. The USSR, under this program, has created an interlocking network of airfields along perimeter areas in Europe and internal approach lines within the USSR. During the period of this estimate, the sirfield construction program in the Far East and in the Sovlet Arctic will probably be accelerated. 131. Combat effectiveness of Soviet military aviation 10, on the whole, not as high as that of the air forces of the US and UK. The chief limiting factors have been lower average aircrew pro- ficiency, lower standards of maintenance and training, and lack of certain modern aircraft types. During this periol the continued replace. ment of piston by jet types and the introduction into operational units of new jet types including an all-weatber fighter, and madium and heavy bombers, together with the training appropriate to these types, will lead to a significant increase of combet effectiveness. However, the Soviet log in producing many of the latest aircraft types, and the operating problems accompanying the introduction of advanced - 80 - TOP SECRET and complex equipment in new aircraft, indicate that over-all Sortat air combat effectiveness will remain below that of the US and UX during this period, especially in night and all-wenther operations and in long-range operations. 132. The MIG-15 and MIG-17 are now standard equipment of Soviet Fighter Aviation of Air Defense as of other components of the Soviet Air Force. The USSR is also believed to be developing an interceptor with performance characteristics superior to those of the MIG-15 and MIG-17. Limited numbers of aircraft with AI radar have probably board introduced into operational units. We believe that the USSR vi.1). have about 200 all-weather fighters by mid-1955, about 1,000 by mid-1957, and about 2,100 by mid-1959. 133. Soviet long-range eviation is now based on the TU-4 medium bomber, which was copied from the American B-29. This is the only bomber USSR available to t be Soviets in large numbers and capable of carrying nuclear weapons to distant targets. As of 1 July 1954, a total of about 1,100 11/4's was estimated to be available in operational units. (Table of Equipment Strength of Soviet air regiments known to be equipped with or in process of being equipped with TU-4 aircraft totals 1,340 but the 10-4 regiments are currently estimated to be at only about 85 percent of T/E strength.) As of 1 July 1954 approximately 210 TU-4's (eight regiments with a T/E strength of 260) were located in the Soviet Far as 81 - TOP RECRET TOP SECRET East. It is believed that deliveries of TU-4's to operational units have virtually ceased and that with the gradual phasing out of these aircraft as new jet models become available only 700 will remain in operational units by mid-1957, and 100 by mid-1959. 134. In the past four months there have been conclusive indications that a jet medium bomber equipment program has been initiated in Soviet Long-Range Aviation. During the 1954 Soviet May Day fly-by and the rehearsals preceding it, 9-11 twin jet medium bombers, designated by allied intelligence as the Type 39, participated. Subsequent intelligence has associated this type with a known Soviet Long-Range Aviation unit. We estimate that as of 1 July 1954 at least two regiments of Soviet Long-Range Aviation with a T/E strength of 60 aircraft were in process of equipment with Type 39 jet medium bombers. Total actual strength of these units is estimated at approximately 20 aircraft. Series production of the Type 39 is estimated to have begun in mid-1953, and total production as of 1 July 1954 is estimated at about 40 aircraft. It is estimated that Soviet Long-Range Aviation will contain an actual strength of 650 jet medium bombers by mid-1957, and 1,050 by mid-1959. * For radii-ranges and other performance characteristics of these aircraft, see Appendix D Tables 5 and 6 o 6 82 - TOP SECRET TOP SECRET 135. The Type 37, which was initially observed on 30 July 1953 and later observed in flight on seven different occasions in connection with the 1954 May Day celebration, is a swept wing, four-engine, jet heavy bomber with an estimated gross weight of 365,000 pounds. The aircraft, considered presently to be in the prototype stage, is expected to appear in operational units by the end of 1956 building up to an actual strength of about 50 aircraft by mid-1957 and 250 by mid-1959. 136. There has been some evidence of the existence of a large bomber designated the Type 31. On the basis of present evidence, 1t is highly doubtful that any substantial re-squipment of Long-Range Aviation units with Type 31 class aircraft has occurred to date, though possibly 15 or 20 may have been introduced. The Long-Range Aviation re-equipment program to replace the TU-4 is more likely to be accomplished by in- troduction of the jet bomber aircraft which have now appeared, and the Type 31 class probably will not be introduced in numbers. * For radii-ranges and other performance characteristics of these aircraft, see Appendix D Tables 5 and 6 . - 83 -