UH-1D Iroquois "Huey" Helicopter Model in 1:57 Scale. Handcrafted mahogany model arrives ready to display. The most widely used military helicopter, the Bell UH-1 series Iroquois, better known as the "Huey", began arriving in Vietnam in 1963. Before the end of the conflict, more than 5,000 of these versatile aircraft were introduced into Southeast Asia. Measures approximately 12" length.