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[S.S. 742/2.] PHOTOGRAPHS OF GERMAN GUNS. Ia 54690A. SERIAL No. 2. Heavy Guns on Wheeled Mountings. 1904 10-cm. Gun (10 cm. K.04). 13-cm. Gun (13 cm. K.). 15-cm. Q.F. Naval Gun (S.15 cm. K. or 15 cm. S.K. L/40). 1914 10-cm. Gun (10 cm. K.14). 'NATIONAL 1917 10-cm. Gun (10 em. K.17). New or 1916' 15-cm. Gun (15 cm. K.16). COMPARISON OF OLD AND NEW 10-CM. GUNS. COMPARISON OF 13-CM. AND 15-CM. GUNS. 1904 gun. 1914 gun. 1917 gun. 15-cm. Q.F. naval gun New or 1916 15-cm. 13-cm. gun. L/40. gun. Calibre 10.5 cm. 4.13 in.) 10.5 cm. (4.13 in.) 10.5 cm. (4 13 in.). Overall length of piece 30 calibres = 10 ft. 21/2 in. 35 calibres = 12 ft. 1 in. 45 calibres = 15 ft. 6 in. Calibre 13.5 cm. (5.31 in.) 15 cm. (?) (5.9 in.) ... 14.97 cm. (5.89 in). Buffer Oil buffer, spring re- Ditto; variable recoil. Ditto; variable recoil. Overall length of piece 35 calibres 15 ft. 61 in. 40 calibres = 19 ft. 7 in. 43 calibres 21 ft. cuperator; constant Buffer Oil buffer, spring re- 2 oil buffers, 4 spring re- Oil buffer, air recuperator; recoil. cuperator; constant cuperators; con- variable recoil. Limits of elevation on car- - 5° + 30° 0°,+45° 0°, +45° long recoil. stant short recoil. Maximum elevation on +26° +32° +42°. riage ... Amount of traverse 7° 52' 7° 52' 7° 52' carriage. Weight of gun in action 54 cwt. - Amount of traverse 4° ... Nil ... 7° 52' Ammunition The 1904 and 1914 guns fire a 40-lb. shell with a full and a reduced charge Weight of piece ... 643 ewt. 95 cwt. 80 cwt.* (separate ammunition). The 10 c.r.h. shell with false cap weighs Transport ... Designed for horsetrans- One steam or petrol 2 80-h.p. petrol tractors. about 1 lb. more than the 21 c.r.h. shell. No details are available port. The piece is tractor. The piece is trans- concerning the ammunition of the 1917 gun. transported on a ported on a special Maximum ranges :- special wagon. wagon. 21/2020 c.r.h. shell full charge 12,249 yds. 12,467 yds. yds. Number of charges 2 2 3 ... reduced charge 9,788 yds. - yds. - yds. Weight of shell 89 lbs. (6 c.r.h.) 88 lbs. (2 c.r.h.) and 94.5 112 lbs. (7.5 c.r.h. and 10 ... ... 10 c.r.h. shell lbs. (10 c.r.h. with c.r.h. with false cap). with full charge 18,889 yds. ... 14,327 yds. ... 21,826 yds. (?) false cap). false cap. reduced charge yds. ... yds. yds. Maximum ranges Full charge ... 15,748 yds. ... 20,451 yds. (10 c.r.h.) 24,934 yds. (10 c.r.h.). General Staff (Intelligence), Medium charge ... - 21,326 yds. (10 c.r.h.). Reduced charge ... 14,983 yds. (2 c.r.h.) 15,201 yds. (7.E c.r.h.) General Headquarters. . * Prisoners' statements. 2nd September, 1918. PRINTED IN FRANCE BY ARMY PRINTING AND STATIONERY SERVICES. PRESS A-9/18-7902B-4000.

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