| Light Observation Helicopter | |
|---|---|
 YOH-6A Cayuse helicopter on liftoff | |
| General information | |
| Project for | Light Observation Helicopter |
| Issued by | United States Navy |
| Service | United States Army |
| Proposals | Bell YOH-4 Fairchild Hiller YOH-5 Hughes OH-6 Cayuse Bell OH-58 Kiowa (second round) |
| History | |
| Outcome | Hughes OH-6 Cayuse (first round) Bell OH-58 Kiowa (second round) |
| Successors | Army Helicopter Improvement Program |
The Light Observation Helicopter (LOH) program was a United States Army program to evaluate, develop and field a light scout helicopter to replace the Army's aging Bell OH-13 Sioux. It gained impetus with the advent of the Vietnam War, and was aided by advances in helicopter technology, specifically the development of the turboshaft engine.
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