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20 Cards in this Set

  • Front
  • Back

What is the function of a vortex generator (VG)?

It is designed to delay or prevent separation of the boundary layer.

What are the three axes of an airplane?

Longitudinal, lateral, and vertical

What are the three primary flight controls of an aircraft?

The ailerons, elevator, and rudder

Name several secondary flight controls tools and describe their general purpose?

Secondary flight controls consist of various types to trim tabs such as balance tabs. Antiservo and servo tabs and spring tabs. Their function is to assist the pilot in moving the controls and to trim the aircraft to fly hands-off.

Name several types of auxiliary flight controls and describe their general purpose?

The auxiliary flight controls consist of the various high-pitched devices used during low-speed flight such as leading and trailing edge flaps, slats, slots, speed brakes, etc.

What is a servo trim tab?

It is an auxiliary control, positioned by the movement of a cockpit control and designed to create aerodynamic forces to assist in moving a control surface

What is a spring tab?

It is an auxiliary control designed to aid the movement of a primary control at high speeds when control forces become too high

What is a balance trim tab?

It is an auxiliary control designed to create aerodynamic forces to assist in moving a control surface. The tab is positioned by a control rod connected to the fixed surface on the same side as the horn on the tab.

What are the four most common types of high lift devices?

Leading and trailing edge flaps, slats, and slots

Describe some of the tools used to check control surface travel

A universal propeller protractor or special control surface protractor

Name 3 mechanical methods by which flight controls systems may be actuated

Cables, push rods, torque tubes

What is a fairlead?

It is a device to prevent a cable from rubbing ok new the aircraft structure

What are the most likely places for a control cable to wear or break?

Where the cables pass over pulleys or through fairleads

What information is required before a cable and rigging chart can be used?

The ambient temperature and the cable size

What is the function of a cable tension regulator?

It automatically adjusts the cable tension so to compensate for expansion and contraction in the aircraft structure

Describe the function of a rotorcraft collective pitch control

The collective control causes each rotor blade to change its pitch angle by the same amount, thus increasing or decreasing the lift produced by the rotor

Describe the function of a rotorcraft cyclic pitch control

The cyclic control tilts the main rotor disc by changing the pitch angle of each rotor blade during its cycle of rotation, which cause the helicopter to move in the direction of the rotor tilts

What mechanism is most commonly used to compensate for the torque produced by the main rotor of a helicopter?

The tail (or anti-torque) rotor

How is the amount that of thrust produced by the tail rotor controlled?

By moving the foot pedals

Why should control surfaces be Mocksville when an aircraft is parked

To prevent damage from the wind.