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13 Cards in this Set
- Front
- Back
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State the purpose of a hydraulic patch test.
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To ensure the cleanliness and purity in the hydraulic system.
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State the purpose of a Blade Inspection Method (BIM) indicator.
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a. In the leading edge of the blade is a spar that runs the length of the blade. The spar contains nitrogen and if there is a leak in the spar the BIM will change to 3 black lines.
b. The BIM under proper conditions is all white. |
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State the purpose of conducting Flight Control system rigging.
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To bring flight control perimeters into straight level flight, as set by the factory.
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State the purpose of a tactical paint scheme.
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The paint design is for each A/C type to reduce visual detection by matching reflection of operational surroundings.
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State the two methods of locking and unlocking tail wheel lock pin.
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a. Manually
b. Electrically |
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State the factors that affect helicopter flight.
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a. Lift: Counter acts the force of weight causing the helo to rise.
b. Weight: Force of gravity pulling helo downward. c. Drag: Friction of air pushing on the helo. d. Thrust: Counter acts the force of drag causing helo to go forward. |
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State the factors that affect rotor blade lift.
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Increasing the pitch of the main blades creating a high-pressure area on the lower side of the blade and a low-pressure area on the upper side of the blade, this creates lift. Lift must be greater or equal to weight if lift is to be sustained.
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State the location and purpose of the main rotor head dampers.
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a. Between each spindle and hub.
b. Purpose to reduce the lead and lag of the main rotor blades and absorb main rotor head start load. |
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Explain how the following flight controls affect helo flight.
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a. Collective stick- change pitch of main rotor blade. Increase or decrease lift
b. Cyclic stick- changes the angle of the rotor disk. Controls forward aft and lateral movement c. Rudder pedals- changes pitch of tail rotor blades. Controls helo heading |
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State what must be done for effective helo corrosion prevention.
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A/C must be washed every 7 days at sea and every 14 days on shore.
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State the two areas on the helo, which must have particular attention during a corrosion inspection.
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a. Gear boxes.
b. Avionics. |
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State the approved cleaning materials and methods.
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a. A/C cleaning compound Mil-C-85570 type 1 or II.
b. Mixing procedures for heavy dirt is 1 part-cleaning compound to 1 part water. c. Mixing procedures for light dirt 1 part-cleaning compound to 9 parts water. d. Clean A/C from bottom to top. |
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State the purpose for emergency reclamation procedures.
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To salvage salvageable components, and to remove them by their priority.
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