The American Aircraft Penetrator was modified from a helicopter produced by what nation's military?
Bell UH-1 Iroquois The Bell UH-1 Iroquois (nicknamed "Huey") is a utility military helicopter powered by a single turboshaft engine, with two-blade main and tail rotors. The first member of the prolific Huey family, it was developed by Bell Helicopter to meet a United States Army's 1952 requirement for a medical evacuation and utility helicopter, and first flew in 1956. The UH-1 was the first turbine-powered helicopter to enter production in 1960 for the United States military, and more than 16,000 have been built since.
Interstate Aircraft Interstate Aircraft and Engineering Corporation was a small American aircraft manufacturer in production from April 1937 to 1945, based in El Segundo, California. In 1940 they developed the Cadet, a 2-seat monoplane. The Model S-1B was developed into the XO-63, later redesignated to the XL-6. A total of 259 of the XO-63/L-6/L-8 series were built for the US Army Air Forces. The company also manufactured a trainer for the US Navy which was developed in only nine months, from the first blueprints to first flight of the prototype. The company also manufactured bomb shackles, machine gun and cannon chargers, hydraulic actuators, and other aircraft components.