21-17. (H) Blades
All questions: 14
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Questions for exams: 10
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1. The purpose of the blade tip cap is: 1) to reduce induced drag 2) to increase the lift in hover 3) to increase max air speed The combination containing all of the correct statements is:
2. The purpose of the aluminium mesh which is manufactured within the skin of some fibre glass covered rotor blades is:
3. An upward bent outboard trim tab influences the rotor blade in rotation as follows:
4. The most difficult material from which to manufacture a homogeneous series of blades is:
5. Erosion strips fitted to the leading edge of rotor blades are usually manufactured from the following alloys:
