Developed for the 1960s U.S. Army Light Observation Helicopter (LOH) program as the YOH-4, the Bell 206 failed to win the contract. Bell redesigned the airframe and successfully marketed the aircraft commercially. The new design was eventually selected by the military as the OH-57/OH-58 Kiowa series. As of 2012, more than 6,300 Bell 206s, including all variants, had been delivered since production began in 1967.
Bell 206A : Intial production variant powered by Allison 250-C18
Bell 206B : Allison 250-C20
Bell 206B-3 : Allison 250-C20J
Bell 206L : Stretched, 7-seat, Allison 250-C20B
Bell 206L-1 : Allison 250-C28
Bell 206L-3 : Allison 250-C30P
Bell 206L-4 : transmission upgrade
Bell 206LT : twin engine conversions
Bell 206A : Intial production variant powered by Allison 250-C18
Bell 206B : Allison 250-C20
Bell 206B-3 : Allison 250-C20J
Bell 206L : Stretched, 7-seat, Allison 250-C20B
Bell 206L-1 : Allison 250-C28
Bell 206L-3 : Allison 250-C30P
Bell 206L-4 : transmission upgrade
Bell 206LT : twin engine conversions
Derivatives & Versions of 206 |
| Model | Year | History |
|---|---|---|
| 206 Prototype / YOH-4 1962 | 1962 | The Bell 206 prototype originated as the Model D-250 / YOH-4, developed in the early 1960s for the U.S. Army’s Light Observation Helicopter (LO ... |
| D-250 / YHO-4 1962 | 1962 | Prototype Light Observation Helicopter for US Army competition. Lost to Hughes OH-6 Cayuse. Bell developed into civil 206 and the rest is histo ...  |
| 206A 1966 | 1966 | First production model of Bell 206 helicopter., In production from 1967-????. |
| 206B Jet Ranger 1967 | 1967 | |
 Agusta AB206 1967 | 1967 | Production at 31 December 1997 totalled 910 ( 556 JetRanger IIs, 184 JetRanger IIIs and 170 AB 206A-1 military derivatives ) |
| OH-58A Kiowa 1968 | 1968 | |
| TH-57A Sea Ranger 1968 | 1968 | |
| 206B-2 Jet Ranger 1970 | 1970 | |
| CH-136 Kiowa 1971 | 1971 | OH-58A Kiowa in canadian service |
| OH-58B Kiowa 1972 | 1972 | |
| CAC ca-32 kiowa 1973 | 1973 | This was a licence-built Bell 206 Kiowa, with the first wholly Australian built airframe rolled out in Mar 1973. Deliveries had commenced to ... |
| 206L Long Ranger 1974 | 1974 | |
| OH-58C Kiowa 1976 | 1976 | The OH-58C is an upgrade of the OH-58A. It has a more powerful engine, as well as flat panel windscreen glass and improved avionics. The flat pan ... |
| 206B-3 Jet Ranger 1977 | 1977 | |
| 206L-1 Long Ranger 1977 | 1977 | |
| CH-139 Jet Ranger 1981 | 1981 | TH-57 trainer in canadian service |
| 206L-3 Long Ranger 1982 | 1982 | |
| TH-57C Sea Ranger 1982 | 1982 | |
| OH-58D Kiowa Warrior 1983 | 1983 | The Bell 406 resulted from the US Army Helicopter Improvement Program (AHIP). Airframes received a upgraded transmission and engine, a four-blade ... |
| TH-57B Sea Ranger 1986 | 1986 | |
| 206L-4 Long Ranger 1992 | 1992 | |
| TH-67A Creek 1992 | 1992 | The Bell 206B-3 was the winner of the 1993 US Army's New Training Helicopter ( NTH ) competition. In 1992 the Army sought a replacement for the UH-1Hs that were being used at the Army Aviation Center. A request for proposal was advertised tha ... |
| 206LT Twin Ranger 1993 | 1993 | |
| 407 1995 | 1995 | The Bell 407 is a four-blade, single-engine, civilian utility helicopter. It is based on the Bell 206L-4 LongRanger but with the rigid rotor wit ... |
| AMT OH-58A 2006 | 2006 | |
| OH-58F Kiowa Warrior 2012 | 2012 | The US Army launched the Cockpit and Sensor Upgrade Program (CASUP) to replace the OH-58D. The resulting F model Kiowa upgrade was largely based ... |
5172 C/N on database.
