The transmission is of a planetary type and reduces the engine's output to 324 rpm at the main rotor.
Out of that number, over 3,000 were lost. Helicopters used for medical evacuation were “Dustoffs.” Finally, the “Iroquois”, a multi-task variant, ends the list. Tail section of an American UH-1H Huey helicopter in the War Remnants Museum Ho Chi Minh City Vietnam Huey helicopter.

There was no other conflict where the role of helicopters was so important. Vietnam War US Army 1st Cavalry Landing Zone PHOTO Helicopter US Army Troops. The reference became so popular that Bell began casting the name on the helicopter's anti-torque pedals.While glowing in praise for the helicopter's advances over piston-engined helicopters, the Army reports from the service tests of the YH-40 found it to be underpowered with the production T53-L-1A powerplant producing a maximum continuous 770 Bell commenced development of the UH-1C in 1960 in order to correct aerodynamic deficiencies of the armed UH-1B. The UH-1 is seen in many films about the Vietnam War, including The 2002 journey of "Huey 091", displayed in the Smithsonian Numerical sequence used by USAAC/USAAF/USAF 1941–present; The total power rating of the T53-L-1A is 860 shp (640 kW). This armament was augmented by two door gunners, secured in place by what was known as the “monkey strap”. Camouflage green military helicopter UH-1 Huey flying over a fieldhttps://www.alamy.com/stock-photo-camouflage-green-military-helicopter-uh-1-huey-flying-over-a-field-77390751.htmlA Bell UH-1 'Huey' helicopter at an air display. This preserved example restored in US Vietnam era colorshttps://www.alamy.com/a-bell-uh-1-huey-helicopter-at-an-air-display-the-huey-is-the-image-image61142057.htmlHuey Helicopter Vietnam Veterans Memorial State Park New Mexicohttps://www.alamy.com/stock-photo-huey-helicopter-vietnam-veterans-memorial-state-park-new-mexico-24803334.htmlVietnam War era helicopter on the ground rear view UH-1 Hueyhttps://www.alamy.com/stock-photo-vietnam-war-era-helicopter-on-the-ground-rear-view-uh-1-huey-77429268.htmlhttps://www.alamy.com/stock-photo-huey-helicopter-with-soldier-55470431.htmlTourist Vietnam, a curious visitor to the Ho Chi Minh City Museum in Saigon inspects the cockpit of a US Bell Huey helicopter, HCMC Vietnamhttps://www.alamy.com/stock-photo-tourist-vietnam-a-curious-visitor-to-the-ho-chi-minh-city-museum-in-87037903.htmlA Vietnam era UH-1 Huey helicopter flies during a Vietnam Veterans reunion in Kokomo, Indiana.https://www.alamy.com/stock-photo-a-vietnam-era-uh-1-huey-helicopter-flies-during-a-vietnam-veterans-24563457.htmlUH-1 Huey helicopter at the Vietnam base camp exhibit at Patriot's Point, Mount Pleasant, South Carolinahttps://www.alamy.com/stock-photo-uh-1-huey-helicopter-at-the-vietnam-base-camp-exhibit-at-patriots-58606164.htmlA Bell UH-1 'Huey' helicopter as made famous in the Vietnam War, and featured in such films as Apocalypse Now. All orders are custom made and most ship worldwide within 24 hours. The Vietnam War was a helicopter war. The main beams are joined at the lift beam, a short aluminum girder structure that is attached to the transmission via a lift link on the top and the cargo hook on the bottom and is located at the aircraft's center of gravity. Some of them came back with so many holes, you just wouldn’t believe they’d ever fly again”.

AS-10 and SS-11 missiles were tested in several different configurations. The “Huey” nickname stuck thanks to her early “HU-1” designation (it was later redesignated to UH-1 with the normalization of 1962). Some UH-1Hs have been modified to replace the tail rotor control cables with push-pull tubes similar to the The HU-1A (later redesignated UH-1A) first entered service with the During service in the Vietnam War, the UH-1 was used for various purposes and various terms for each task abounded. Owned by MSS Holdingshttps://www.alamy.com/stock-photo-bell-uh-1-or-huey-is-one-of-the-most-famous-helicopters-in-the-world-104857506.htmlMembers of B Troop, 1st Squadron, 9th Cavalry watch a huey helicopter gunship work the area during the Vietnam War in 1967.https://www.alamy.com/stock-photo-members-of-b-troop-1st-squadron-9th-cavalry-watch-a-huey-helicopter-26527869.htmlhttps://www.alamy.com/stock-photo-bell-uh-1a-iroquois-huey-43985499.html10th Year of the Avalon Military Tattoo showcases Australian Defence Force and local volunteer groups, pipe bands and a Hueyhttps://www.alamy.com/stock-photo-10th-year-of-the-avalon-military-tattoo-showcases-australian-defence-83910664.htmlBell UH-1H (Huey), rotor assembly.