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68 Cards in this Set
- Front
- Back
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What type of flight control provides additional lift during takeoff and landing?
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Flaps (secondary flight controls).
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What type of flight control system is used on high-speed jet aircraft?
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Power-boost flight control system.
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What type of pressure supplies the force necessary to operate the control surface in a full power-operated system?
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Hydraulic pressure.
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On small or low-speed aircraft, cockpit flight controls are connected directly to control surfaces by what means?
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Cables or pushrods.
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On high-speed aircraft, what components aid the pilot in moving the flight control surface?
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Hydraulic actuators.
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Current specifications call for what type of power source for emergency operation of a primary flight control system?
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Independent hydraulic power source.
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In an elevator system, what component ports hydraulic pressure to the power cylinder?
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The control valves.
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With the stabilizer trimmed nose down, what action does the load-feel bungee add on the elevator?
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Nose down attitude.
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Stabilizer trim deflection on an S-3 aircraft is from how many degrees down to up?
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-6 degrees down to +1 degree up.
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What is the maximum surface deflection of each stabilator on an F/A-18 aircraft?
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10.5 degrees trailing edge down to 24 degrees trailing edge up.
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Full throw of a pilot’s control stick raises the inboard flaperons how far?
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Inboard flaperon raises 49 1/2 degrees.
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Full throw of the pilot’s control stick raises the outboard flaperons how far?
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Outboard flaperon raises 53 degrees.
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All four flaperons will automatically pop up approximately how many degrees when the aircraft has weight on wheels and the throttles are retarded?
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41 degrees.
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What combined flight control system achieves an increased roll rate about the longitudinal axis?
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Aileron and Spoiler deflection system.
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What causes the spoiler deflectors to open?
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Open with upward movement of the ailerons.
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What control system provides a means of controlling an aircraft about its vertical axis?
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Directional control system.
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When is a backup flight control system activated?
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Whenever a partial or complete hydraulic failure occurs.
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At what pressure does the backup hydraulic system get activated?
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When system pressure is decreased from 700 to 900 psi.
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When does the backup flight control system perform as an isolated system?
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When the flight and combined systems fail.
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What must be done to a flight control hydraulic component when it is found to be contaminated?
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It must be removed and replaced.
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When an aircraft has a discrepancy with the flight controls system, when is the aircraft released for further flights?
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When the discrepancy has been determined and corrected.
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What corrective action often results in a repeat discrepancy or loss of aircraft?
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“Could Not Duplicate” or “Replaced Suspected Component”.
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Maintenance of the primary flight control power actuator is generally beyond the capability of what maintenance level?
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Organizational-level maintenance.
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What will ensure proper response of a flight control surface?
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Correct cable tension.
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How many control cables are there in a simple cable system?
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One.
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Other than periodical inspections, what else must be done to a control cable?
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It must be kept clean.
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What is the maximum number of broken wires allowed in a 1-inch length of a 7 x 19 cable?
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Six broken wires.
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What is the maximum number of broken wires allowed in a 1-inch length of a 7 x 7 cable?
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Three broken wires.
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What is the maximum number of broken wires allowed per inch on a control cable passing over pulleys, drums, or through a fairlead?
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No broken wires allowed.
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What is the purpose of a quick disconnect in a cable system?
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Used for frequent disconnecting.
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A simple rigid control system consists of what components?
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Push-pull rods and bell cranks.
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After installing a new push-pull rod in a flight control system, what must be done to the control surface?
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It must be checked for correct travel.
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What is the purpose of a bell crank and a walking beam?
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Change direction of motion when the airframe does not permit a straight run.
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What is the purpose of a double-spring bungee?
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To protect against both overtension and overcompression.
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The purpose of rigging and adjusting a primary flight control system is to regulate and limit surface deflection in both directions. What other purpose does it serve?
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Ensure neutral alignment of all connecting components.
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A tensiometer is inaccurate for measuring cable tension under how many pounds?
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30 pounds.
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What is the actual tension on a 3/16-inch diameter cable if a No. 2 riser is used and the dial on the tensiometer reads 48?
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100 pounds.
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When the control column is in neutral, the trailing edge of the control surface should be aligned to what degree on the throwboard scale?
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Zero.
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With the aft sector rig pin in place, the elevators read 5 degrees above zero. What must you do to correct this?
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Lengthen the push-pull rod until the elevator trailing edge reads zero.
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A 1/8-inch flight control cable is composed of how many strands and wires?
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Seven strands and nineteen wires each.
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What tools can be used to cut a small diameter cable?
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Heavy-duty diagonal cutters, side cutters, or a pair of wire nippers.
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What is the most satisfactory method of cutting a cable?
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A cable-cutting machine.
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To achieve the most efficient operation when swaging a cable end fitting, you must use a 3/8-inch air line with at least how many pounds of pressure?
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Minimum of 90 pounds of pressure.
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What manual contains information on proof testing various size cables?
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NAVAIR 01-1A-8.
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What components connect the wing flaps to the main wing assembly?
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Connected by various kinds of hinges and slides.
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What is the purpose of the relief valve located in the pressure line ahead of the flap normal system selector valve?
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Relieves pressure from thermal expansion.
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In a leading/trailing edge flap system, what is the full-down deflection of the trailing edge flap?
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60 +1, -2 degrees.
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What component provides the power source for the emergency flap system?
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A 300-cubic-inch bottle charged to 3,000 psi.
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What component of the wing flap system shifts rotary motion to linear motion?
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Flap actuator.
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Moving the flap control handle to the TAKEOFF position will move the slats to what position?
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27.5-degree leading edge down.
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The wing control system provides high lift and drag forces for takeoff and landings. What other advantages does the wing control system provide?
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Increased lift for maneuvering and, at supersonic speeds, aerodynamic lift to reduce trim drag.
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When is the only time a wing sweep self-test can be performed?
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When the wings are overswept.
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What flight control is used to slow down the aircraft speed by increasing the profile drag?
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Speed brakes.
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What type of switch is used to control the aileron trim system?
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A five position, four throw, momentary ON contact switch with a center OFF position.
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How does an aircraft that does not have trim tabs achieve lateral trim?
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By repositioning the lateral control surfaces as necessary to achieve a balanced lateral flight condition.
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How is longitudinal trim achieved on an aircraft that has movable horizontal stabilizers and elevators?
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By changing the incidence of the stabilizer.
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Who must supervise the removal and installation of a wing assembly?
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A senior petty officer.
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What is the first step the person in charge must perform before installing a new wing assembly?
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Check the identification tag to make sure it is the correct replacement unit.
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Many of the general precautions listed under the removal and installation of what component apply to the removal and replacement of a stabilizer?
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Wing assembly.
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What tool is used for removing the piano wire of a flight control surface?
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A hand drill.
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When installing a flight control surface, what tool is used to ensure that the hinge holes are properly aligned?
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Drift pin.
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Why is the alignment of an airframe important?
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It is directly related to the aerodynamic performance of the aircraft.
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How are flight control surfaces balanced at the time of manufacture?
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By adding weights to the inside of the leading edge of the control surface.
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What must be accomplished prior to performing an alignment check on an aircraft?
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The aircraft must be level both laterally and longitudinally.
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What is used to control the attitude of an aircraft during an alignment check?
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Jacks.
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How many different reference points are used during transit leveling?
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Four, two longitudinal and two lateral.
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When is an aircraft level when using the plumb bob method of leveling?
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When the plumb bob pointer is at 0 degrees on the datum plate.
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In what configuration must an aircraft be before a wing twist check can be performed?
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The wings must be folded and the aircraft leveled laterally.
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