The Discovery Channel reports that there were approximately 12,000 UH-1 "Hueys" involved in the Vietnam conflict, from start to finish, and that approximately 6,000 were lost or damaged during the conflict.
This is the helicopter that we flew.
Designation: UH-1H Iroquois (Huey)
Manufacturer: Bell Helicopter, Fort Worth, Texas
Main Rotor Span: 48 ft 3.2 inches
Tail Rotor Span: 8 ft 6 in
Length: 57 ft 0.67 inches (rotors turning)
Fuselage Length: 41 ft 5 inches
Skid Width: 8 ft 6.6 inches
Height to top of mast: 13 ft 7.4 in
Max Speed: 124 knots forward,
30 kts sideward & 30 knots rearward
Max Gross Weight: 9500 lbs
Engine: Lycoming T53-L-13 turbine engine,
1300 shp (shaft horse power)
Fuel: 206.5 gal JP-4
Flight Duration: 3 hrs
Crew (Vietnam): Pilot, Copilot, Crew Chief and Door Gunner
Passengers: 9

PLEASE be patient! Loading Huey cockpit view