Title: Bell UH-1 Iroquois variants
Content:  The HU-1A (later redesignated the UH-1A) was the first turbine-equipped U.S. helicopter to go into production, and production models first entered service with the 101st Airborne Division at Fort Campbell, Kentucky, the 82nd Airborne Division and the 57th Medical Detachment. Although they were intended for evaluation only, the Army quickly pressed them into operational service and Hueys with the 57th Medical Detachment arrived in Vietnam in March 1962. The helicopter was originally designated the HU-1A, which is where it received its nickname - "Huey." The official U.S. Army designation Iroquois (Army helicopters are traditionally given Native American names) was almost never used in practice. Fourteen of the original 
Title: Bell UH-1 Iroquois
Content:  The Bell UH-1 Iroquois (nicknamed "Huey") is a utility military helicopter powered by a single turboshaft engine, with two-bladed main and tail rotors. The first member of the prolific Huey family, it was developed by Bell Helicopter to meet a 1952 US Army requirement for a medical evacuation and utility helicopter, and first flew in 1956. The UH-1 was the first turbine-powered helicopter produced for the United States military, and more than 16,000 have been built since 1960. The Iroquois was originally designated HU-1, hence the Huey nickname, which has remained in common use, despite the official redesignation to UH-1 in 1962. The UH-1 first saw service in combat operations during the Vietnam War, with around 7,000 helicopters deployed. The Bell 204 and 205 are Iroquois versions developed for the civil market.
Title: Bell Huey family
Content: XH-40 ; The initial Bell 204 prototype. Three prototypes were built. ; YH-40 ; Six aircraft for evaluation, as XH-40 with 12-inch cabin stretch and other modifications. ; Bell 533 ; One YH-40BF rebuilt as a flight test bed with turbofan engines and wings. ; HU-1A ; Initial Bell 204 production model, redesignated as the UH-1A in 1962. The HU-1 designation gave rise to the popular but unofficial nickname "Huey". ; TH-1A ; UH-1A with dual controls and blind-flying instruments, 14 conversions. ; XH-1A ; A single UH-1A was redesignated for grenade launcher testing in 1960. ; HU-1B ; Upgraded HU-1A, various external 
Title: Bell UH-1Y Venom
Content:  The Bell UH-1Y Venom (also called Super Huey) is a twin-engine, medium-sized utility helicopter, built by Bell Helicopter under the H-1 upgrade program of the United States Marine Corps. One of the latest members of the numerous Huey family, the UH-1Y is also called "Yankee", based on the NATO phonetic alphabet pronunciation of its variant letter. The UH-1Y was to have been remanufactured from UH-1Ns, but in 2005, it was approved for the aircraft to be built as new. After entering service in 2008, the UH-1Y replaced the USMC's aging fleet of UH-1N Twin Huey light utility helicopters, first introduced in the early 1970s. In 2008 it entered full-rate production, with deliveries to the Marines completed in 2018.
Title: Bell UH-1N Twin Huey
Content:  The Bell UH-1N Twin Huey is a medium military helicopter. A member of the extensive Huey family, it first flew in 1969. The CUH-1N Twin Huey (later CH-135 Twin Huey) was the original version, first ordered by the Canadian Forces. The UH-1N has a 15-seat configuration, with one pilot and 14 passengers. In cargo configuration, it has an internal capacity of 220 ft³ (6.23 m³). An external load up to 5,000 lb (2,268 kg) can be carried. The UH-1N was later developed into the civilian Bell 212.
Title: Take Me Home Huey
Content:  Take Me Home Huey is an art project and sculpture that was manifested from a discarded U.S. Army Bell UH-1 Iroquois helicopter, that served as an air ambulance for the U.S. Army in the Vietnam War. The serial number is 67-17174, commonly known as #174. Artist Steve Maloney created the concept and artwork using the restored helicopter's 47-foot long fuselage as a canvas. The composition includes a mule pack of soldier's duffels, public address speakers and a vinyl wrap of Vietnam Helicopter Squadron names, along with symbolic 1960's and 70's pop culture imagery of icons that many soldiers longed for. 
Title: Bell UH-1 Iroquois
Content:  Powered by a prototype Lycoming YT53-L-1 (LTC1B-1) engine producing 700 shp (520 kW), the XH-40 first flew on 20 October 1956 at Fort Worth, Texas, with Bell's chief test pilot, Floyd Carlson, at the controls. Two more prototypes were built in 1957, and the Army had previously ordered six YH-40 service test aircraft, even before the first prototype had flown. In March 1960, the Army awarded Bell a production contract for 100 aircraft, which was designated "HU-1A" and officially named Iroquois after the Native American nations. The helicopter quickly developed a nickname derived from its HU-1 designation, which came to be pronounced as "Huey". The reference became so popular that Bell began casting the name on the helicopter's 
Title: Bell UH-1 Iroquois variants
Content:   Bell flew the first twin-engined Huey in April 1965, calling it the Model 208. It was powered by a Continental XT67 twin-pack engine module. The Canadian government provided the incentive for Bell to continue development of the Twin Huey using Pratt & Whitney Canada PT6T twin-pack engine. The project attracted orders from the Canadian Forces, US Marine Corps, US Navy and USAF, but not the US Army. The new aircraft was designated UH-1N Iroquois in US service and CUH-1N Twin Huey in Canadian Forces use. The Canadian designation was later changed to CH-135 Twin Huey. There was an HH-1N version produced for the USAF as a base rescue helicopter and for use by the 20th Special Operations Squadron in the counter-insurgency role using the call sign Green Hornet. Some Marine Corps UH-1Ns were converted to VH-1Ns as VIP transports, including six for presidential use. The UH-1N was widely produced and exported to a large number of countries and license-built by Agusta in Italy. Bell certified a civil version as the Model 212 in October 1970.
Title: Take Me Home Huey
Content:  cockpit contains a time capsule of original veteran's artifacts, along with the abstract suspension of miscellaneous helicopter parts and instruments that were part of the original aircraft. Steve Maloney partnered with Light Horse Legacy, a 501(c) non-profit organization that restores old military helicopters and is an official partner of the U.S. Vietnam War Commemoration. The organization's co-founder, Dave Barron, discovered Huey #174 in an Arizona boneyard and restored the fuselage with the help of volunteers and veterans. Barron also researched the history of Huey #174 and learned that it crashed during a medevac mission on 14. February 1969 in the 
Title: Bell AH-1 Cobra
Content:  evaluation against the other rival helicopters. The US Army promptly signed the first production contract, ordering an initial batch of 110 aircraft. Bell added "Cobra" to the UH-1's Huey nickname to produce its HueyCobra name for the 209. The Army applied the Cobra name to its AH-1G designation for the helicopter. The Bell 209 demonstrator was used for the next six years to test weapons and fit of equipment. It had been modified to match the AH-1 production standard by the early 1970s. The demonstrator was retired to the Patton Museum at Fort Knox, Kentucky and converted to approximately its original appearance.

Question: where did the name huey helicopter come from?
Answer: originally designated HU-1.