Assembly and Rigging Section B

Most jet pitch trim actuators for the horizontal stabilizer have _______separate motor.

2

What problems can be caused when the following flight controlsdo not have enough travel? A. Aileron B. Rudder C. Elevator

Alieron- too low may not allow pilot to quickly keep airplane wings level during low speed approach in windy conditon. Rudder- Travel angle too low can cause problems during loss of engine during take-off or cause pilot not to recover in spin. Elevators- too low may not be able to raise nose during the landing flare.

An _______ tab tries to streamline the control surface and is used ato make an all-moving horizontal tail surface les sensitive by opposing the force exerted by the pilot.

Anti-servo

_______ tabs provide a means for the air flow across the surface to provide a "power-assist" to reduce high control forces.

Balance

A typical elevator-control system consist of cables connecting the control wheel with a _______ in the rear fuselage.

Bell crank

Variable_____leading edge flaps use a camber rod and drive arm to extend the flaps.

Camber

_______-Any aircraft that has the equivalent of two lifting surfaces, instead of the conventional horizontal stabilizer (that provides a download).

Canard

Wind dihedral can be checked with a _______ ______.

Dihedral board

Small aircraft flap actuation systems use a series of cables, bell cranks and push rods, and may be actuated manually by a hand lever in the cockpit or by an _______ _______.

Electric motor

The hinge line of a _______ aileron is aft of the leading edge, allowing its nose to protrude slightly from the lower wing surface to counteract aileron drag.

Frise

_______ spoilers operate with maximum deflection when the aircraft land, due to input from the ______swich or _______spin up from the left and right gear.

Ground Squat Wheel

A ______ tab is used on the rudder of many small aitplanes to correct for a tendency to fly with the fuselage slightly misaligned with the relative wind.

Ground-adjustable

During high speed flight on large jets,_______ailerons and flight_______provide roll control.

Inboard Spoilers

An ________board is used to check for wing warpage and for the proper wash-in or wash-out.

Incidence

Explain below why loss of one hydraulic system to a primary flight control surface will not render it inoperative.

Is power by 4 separate hydraulic system

Leading edge flaps that use a jackscrew actuator are call_______leading edge flaps.

Krueger

Elevators cause an airplane pitch about the _______ axis.

Lateral

Ailerons cause an airplane roll about roll the ___________ axis.

Longitudinal

_________ (pitch) stability- the ability of an aircraft to be trimmed to fly handsoff at any speed.

Longitudinal

Which type of aircraft ( high wing, or low wing) will have more wing dihedral?

Low wing

An aircraft that will not return to original flight profile without the help of the pilot would be classified as _______ stability.

Negative

An aircraft that has _______ stability remains displaced from its original state whenever a force is applied. A neutrally stable airplane would be difficult to control and would probably require computer-augmented flight controls.

Neutral

Most aircraft if distubed from flight, it will return to its original position thought damped oscillation. This is referred too as ______ stability.

Positive

Stability, controllability, and safty of flight, are all dependent on what maintenance function?

Proper assembly and rigging of the flight controls.

_______ interconnect springs may be used to help correct for aileron drag by automatically deflecting the rudder at the same time as the ailerons are deflected.

Rudder-ailerons

In most rudder-control systems, cables transmit control inputs to the pilots___ ___ ___.

Rudder-control horn

_______ tabs provide a force to assist the pilot in moving a primary control surface of a large aircraft in the event of a hydraulic failure.

Servo

_______extend out of the leading edge of the wing at high angles of attack and serve the same function as a slot. They may be actuated automatically by aerodynamic forces or mechanically operated, usually in conjunction with the trailing edge

Slats

Fixed _______ducts air from the lower surface to the upper suface of a wing at high angles of attack. This helps prevent stalling at high angles of attack.

Slot

_______ and_______ flaps are the most effective type of flap, and are used almost exclusively on modern aircraft.

Slotted and Flower

A _______tab is another means for assisting the pilot of a high speed airplane to overcome high control forces.

Spring

Many airplanes, including most jet transports, use an adjustable_______ to provide the required pitch trim forces

Stabilizer

The airplane_______shows rigging information such as the control surface movment and leveling means and all of the needed weight and balance information.

TCDS

What is the difference between a normal elevator, and a stabilizer control system found on the Aztec?

The entire horizontal surface pivots when control forces are applied.

Besides winglets, what are two other wing tip designs that reduce wing tip vortices?

Tip tanks and dropped wing tips

_______ tabs on the trailing edge of control surfaces can be adjusted to provide an aerodynamic force to hold the surface in a desired position.

Trim

The rudder causes an airplane yaw about the _______ axis.

Vertical

What problems will an "out of rig" aircraft cause?

Will be difficult or impossible to trim for stable flight and will cause constant attention by the pilot.

_______-the upward angle between the wing and the lateral axis of the airplane. This is major contributor to lateral stability.

dihedral

When the aerodynamic tail load is insufficient due to an aft center of gravity condition, an elevator_____ ______ may be used to supply a mechanical load to lower the nose

down spring

A small triangular stall________maybe installed on the leading edge of the wing near the wing root to cause the area behind it to stall first. This will allow the ailerons(located further back) to still provide lateral control thoughout the stall.

strip

Turning the control wheel to the left will cause the left ailreon to go _______?

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