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68 Cards in this Set
- Front
- Back
What type of flight control provides additional lift during takeoff and landing?
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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 necesary 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 trailing edge up
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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 compete 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 900psi
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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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O-level
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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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three broken wires
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What is the purpose of a quick disconnect in a cable system?
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used for freAuent 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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NA 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 of 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 postition 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 neccessary to achieve a balanced lateral flight conditioin
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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 assebly
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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 directy 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 sued 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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أَحَسَّ بِ - - IV
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voelen, waarnemen
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