The maximum practicable rate for rotation flight test is an important subject for verifying the rotation speed VR and lift-off speed VLOF of aircraft, which has the characteristics of high difficulty and high risk. This article gives the regulation basis and dynamics analysis, and provides flight test preparation, flight test content and methods. The mainly regulation of this subject is CCAR25.107 (e)(1), (2) which defines the rotation speed VR. The flight test preparation includes pre-flight test subjects, required test equipment and weather condition. The flight test content analysis includes the selection of test points, flight test method and acceptable criteria. The maximum practicable rate for rotation tests at the situation of low speed, one engine inoperative, and quick lift-off. The hazard of this subject are aircraft structural damage or accidental ground contact, insufficient obstacle crossing ability and deviated from the runway. The hazard mitigations are made to keep the flight test safe. By the research of the methods of maximum practicable rate for rotation, it proposes flight test risk assessment of the subject, and provides relevant risk control methods and hazard mitigations to keep safety.
Research on flight test method and risk control of civil aircraft with maximum practicable rate for rotation
2023-01-01
221911 byte
Conference paper
Electronic Resource
English
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