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A Method of Ground Resonance Testing for Helicopters

2017
(This document supersedes and cancels AIR 12) 'Ground resonance' is a term which originated in the early days of autogiro development in this country. It is a somewhat ambiguous term as the conditions it describes usually occur at the ground but do not have any association with the common expression 'ground effect'.
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Vibration Testing in Helicopters—A Practical Aspect

The Aeronautical Journal, 1970
The fundamental mechanics of the helicopter involving a number of rotating components make the machine subject to vibration. The prime source of excitation is the main rotor and at the design stage of a new helicopter detailed consideration should be given to the level of forcing produced at the hub.
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Helicopter‐Ship Qualification Testing

Journal of the American Helicopter Society, 1981
Loek T. Renirie, Tjamme Hoekstra
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Leonardo Advances Helicopter Test Efficiency

Aerospace Testing International
Engineers have devised a new flight testing technique for helicopters that reduces the time it takes by up to 85%
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Model-based real-time robust controller for a small helicopter

Mechanical Systems and Signal Processing, 2021
Sebastian Scherer   +2 more
exaly  

The Ground Testing of Helicopters

The Journal of the Helicopter Association of Great Britain, 1953
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Helicopter Reliability Testing

Journal of the American Helicopter Society, 1975
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Helicopter tested

NDT International, 1987
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User Testing of Helicopters by the Army

Journal of the American Helicopter Society, 1957
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Helicopter Icing—Testing and Certification

Journal of the American Helicopter Society, 1982
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