The Puma series of helicopters was designed and developed by the National Aerospatiale Company in France in the early 1960s to meet a requirement of the French Army for a medium-lift, twin-engine, helicopter.

The AS 332 Super Puma was a development of the SA 330 Puma, which flew for the first time in April 1965.

In 1936 the Japanese Air Headquarters issued a specification for a twin-engined monoplane heavy bomber and, to meet this requirement, a number of aircraft designs were proposed by Japanese manufacturers.

The G.IV was designed and developed by Allgemeine Elektrizitats Gessellschaft [AEG] at a similar time to the Friedrichshafen and Gotha bombers and used the same engines but had a performance inferior to those aircraft