Flashcards on Aircraft Flight Controls and Forces
Aircraft Flight Controls and Forces: A Student Guide
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Aircraft Flight Controls
11 cards
Card 1
Question: What materials are used to manufacture flexible control cables?
Answer: Carbon steel coated with tin or zinc, or corrosion-resistant steel.
Card 2
Question: How are the ends of two control cables normally connected?
Answer: With swaged, threaded terminals on the ends of each cable, connected with a turnbuckle.
Card 3
Question: Why must the leading edge and the upper surface of the forward half of a wing be kept free of dents and contamination?
Answer: Because the air flowing over this portion must be smooth to produce maximum lift; roughness or dirt will distort airflow and reduce lift.
Card 4
Question: Why are control cables of large airplanes normally equipped with automatic tension regulators?
Answer: Because temperature-induced contraction (especially of aluminum structure) can make cables loose in flight; automatic tension regulators keep cable te
Card 5
Question: What is a fairlead in aircraft control systems?
Answer: A fairlead is a cable guide used to guide cables in a straight line through or between structural members; it should not deflect a cable more than 3 d
Card 6
Question: Where does breakage of control cables occur most frequently?
Answer: Breakage of wire strands occurs most frequently where cables pass over pulleys and through fairleads.
Card 7
Question: What are the four basic forces that act on an aircraft in flight?
Answer: Thrust, lift, drag, and gravity.
Card 8
Question: Which flight control surfaces are considered the primary group?
Answer: The elevators, the ailerons, and the rudder.
Card 9
Question: Which flight controls make up the secondary group?
Answer: Wing flaps, speed brakes, spoilers, slats, leading edge flaps, and slots.
Card 10
Question: Which flight controls are considered the auxiliary group?
Answer: Trim tabs and spring tabs.