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.
Harbin Z-19 The Harbin Z-19, also called WZ-19, is a Chinese reconnaissance/attack helicopter developed by Harbin Aircraft Manufacturing Corporation (HAMC) for the People's Liberation Army Air Force and the Ground Force Air Force. It is built using components of the Harbin Z-9 which is a licence built version of the Eurocopter Dauphin.