High Quality Content by WIKIPEDIA articles! The Bell 206 is a family of two-bladed, single- or twin-engine helicopters, manufactured by Bell Helicopter at its Mirabel, Quebec plant. Originally developed as the Bell YOH-4 for the United States Army's Light Observation Helicopter program, the 206 failed to be selected. Bell redesigned the airframe and successfully marketed the aircraft commercially as the five-place Bell 206A JetRanger. The new design was eventually selected by the Army as the OH-58 Kiowa. Bell also developed a seven-place LongRanger, which was later offered with a twin-engine option as the TwinRanger, while Tridair Helicopters offers a similar conversion of the LongRanger called the Gemini ST. The ICAO-assigned model designation B06 is used on flight plans for the JetRanger and LongRanger, and the designation B06T is used for the twin-engine TwinRangers. On 14 October 1960, the United States Navy solicited response from 25 aircraft manufacturers to a request for proposals on behalf of the Army for the Light Observation Helicopter .

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