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.
A41 Factory VNS-41 The VNS-41 is the first amphibious microlight aircraft made in Vietnam. The A41 Factory (officially Aircraft Repairing Company A-41) under the Air Force and Air Defense Department (Ministry of Defense) manufactured the aircraft based on the Russian Che-22 "Korvet" design by Boris Chernov and E.Yungerov. A Che-22 was acquired by Vietnam in the late 1990s from the Philippines.