4 research outputs found
A Study of Normal Accelerations and Operating Conditions Experienced by Helicopters in Commercial and Military Operations
Normal Accelerations and Operating Conditions Encountered by a Helicopter in Air-mail Operations
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NACA Technical Notes
Note presenting an analysis of the normal accelerations and operating conditions encountered by two different airmail helicopters and a military pilot-training helicopter. The results indicate that maneuvers are usually responsible for the relatively large accelerations encountered, whereas gusts contribute primarily to the large number of smaller accelerations and the corresponding increase in the amount of time spent in the accelerated state. Results regarding operating conditions, gust and maneuver loads, take-off and climb, en route, landing approach, landing loads, operating variables, and acceleration frequency of occurrence are provided
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NACA Technical Notes
Note presenting an analysis of the normal accelerations and operating conditions encountered by a single-rotor helicopter engaged in air-mail operations in the vicinity of Los Angeles and its suburbs over a period of 14 months. The results indicate that, for this type of operation, maneuver loads developed in routine flight are often greater than the largest gust loads