The Albatros D.V returned to the sesquiplane wing design of the D.III. Initially it was powered by the same 160-horsepower Mercedes engine used in the D.III, but later it was replaced by an up-rated model that delivered approximately 180 horsepower. The major new innovation was the D.V's elliptical cross-section fuselage, compared to the flat-sided fuselage of the earlier models. Primarily because
In early 1930, Allison manager N. H. Gilman sketched a design for a 559 kW (750-hp), 12-cylinder engine that would incorporate high-temperature glycol cooling and a turbosupercharger. The U.S. Navy contracted with Allison to supply the engine (known as the V-1710-A) for use on its airships. Originally known for modified Liberty engines and developing propeller reduction gears, this was the first o
This pressure altimeter would have given Gemini astronauts an indication of their altitude as they returned to Earth from space. It was used for testing and was not flown. The altimeter is similar to those used on aircraft, and can measure altitudes up to 80,000 feet (24 km). Early plans for Gemini were to have the capsule return to a runway, using a folding wing designed by Francis Rogallo. The c