Airplane Systems Flashcards
What are the four main control surfaces and what are their functions?
Elevators — The elevators control the movement of the airplane about its lateral axis. This motion is called pitch.
Ailerons — The ailerons control the airplane’s movement about its longitudinal axis. This motion is called roll.
Rudder — The rudder controls movement of the airplane about its vertical axis. This motion is called yaw.
Trim Tabs — Trim tabs are small, adjustable hinged-surfaces on the aileron, rudder, or elevator control surfaces. They are labor-saving devices that enable the pilot to release manual pressure on the primary control.
How are the various flight controls operated?
The flight control surfaces are manually actuated through use of either a rod or cable system. A control wheel actuates the ailerons and elevator, and rudder/brake pedals actuate the rudder.
What are flaps and what is their function?
The wing flaps are movable panels on the inboard trailing edges of the wings. They are hinged so that they may be extended downward into the flow of air beneath the wings to increase both lift and drag. Their purpose is to permit a slower airspeed and a steeper angle of descent during a landing approach. In some cases, they may also be used to shorten the takeoff distance.
Describe the landing gear system on this airplane.
The landing gear consists of a tricycle-type system utilizing two main wheels and a steerable nosewheel. Tubular spring steel main gear struts provide main gear shock absorption, while nose gear shock absorption is provided by a combination air/oil shock strut.
Describe the braking system on this aircraft.
Hydraulically actuated disc-type brakes are utilized on each main gear wheel. A hydraulic line connects each brake to a master cylinder located on each pilot’s rudder pedals. By applying pressure to the top of either the pilot’s or copilot’s set of rudder pedals, the brakes may be applied.
