Ssc-S001C - Lesson 1C - Use Of Controls

Front 1

Use of Controls (Aircraft Components) - Study Cards
SSC Training Syllabus revised 2012
(lesson 1c)

Deck ID: SSC-S001c
v0.1

Back 1

--- Total 13 questions

Front 2

Describe positive exchange of controls

Back 2

During flight training (and when two pilots fly together), there must always be a clear understanding of who has control of the aircraft.

- Use of a positive 3 step controlled exchange process in as follows:
step 1, person taking control announces, "I have control"
step 2, person surrendering control announces, "You have control"
step 3, person taking control repeats, "I have control"

Process can be reversed with pilot with control starting the exchange with, "You have control", followed by, "I have control", and, "You have control."

Front 3

Airframe
- Components
- materials used in construction

Back 3

Fuselage
Empennage (or tail section)
Wings
Cockpit
Landing gear

(response 1 of 2)

Hint 3

Historically made from wood and fabric. Also can be made from steel tubing, aluminum, fiberglass, Kevlar and carbon fiber.


(response 2 of 2)

Front 4

Wings (question 1 of 2)
- Primary components
- Function, control & effect

Back 4

Left & right ailerons


(response 1 of 2)

Hint 4

Control movement around the longitudinal axis (roll). Always move in the opposite direction from each other through input from the control stick.

Upward deflection of the right aileron decreases the camber resulting in decreased lift on the right wing. Downward deflection of the left aileron increases the camber resulting in increased lift on the left wing. Glider begins roll to the right.

(response 2 of 2)

Front 5

Wings (question 2 of 2)
- Lift devices
- Drag devices

Back 5

Flaps: located on the trailing edge of the wing inboard of the ailerons and are used to increase lift, drag and decent rate. When extended downwards, wing camber is increased and the lift and drag of the wing is increased.


(response 1 of 2)

Hint 5

Spoilers extend from the upper surface of a wing interrupting the airflow over the wing causing the glider to descend more rapidly. Dive brakes extend from both the upper and lower surface increasing decent and drag.


(response 2 of 2)

Front 6

Flaps
- Types and behavior (hint 4 types)

Back 6

1) Plain flap. Deflects downward, increases the effective camber and changes wing's chord line. These factors increase the lifting capacity of the wing.

2) Slotted flap. Changes wing's camber and chord line, it also allows a portion of the higher pressure air beneath the wing to travel through a slot. This increases the velocity of airflow over the flap and provides additional list.

(response 1 of 2)

Hint 6

3) Fowler flap. Moves rearward as well as down. Rearward motion increases the total wing area as well as the camber and chord line.

4) Negative flap is used at high speeds where wing lift reduction is desired to reduce drag. Negative flap reduces both that camber and the resulting lift produced by the wing at a fixed angle of attack and airspeed.

(response 2 of 2)

Front 7

Types of Empennage design (hint 3 types)

Back 7

1) Conventional tail
2) T-tail design
3) V-tail design

(response 1 of 1)

Front 8

Empennage
- Principal Parts
- Function

Back 8

Horizontal and vertical stabilizer, rudder, elevator


(response 1 of 2)

Hint 8

Elevator, attached to the horizontal stabilizer. Controls movement around the lateral axis (pitch). Moves the nose up and down which controls the pitch attitude. Trim tab (located on elevator) lessens the resistance you feel on the flight controls due to the airflow over the associated control surface.

Rudder is attached to the back of the vertical stabilizer. Controls movement about the vertical axis (yaw). Rudder is used with ailerons and elevator to coordinate turns.

(response 2 of 2)

Front 9

Landing gear; types, purpose, care and feeding

Back 9

Gliders typically have a main landing wheel. Gliders can also have a nose wheel or skid and tail wheel. Many glider also have wing-tip wheels or wing-tip skids.

High-performance gldiers often have fully retractable main landing gears.

Hint 9

Care should be taken to not drag or skid nose or tail wheels when turning the glider. This can lead to damage or shortened tire life. When taxiing, use a tail dolly to turn the aircraft or stop taxi, lift the tail to turn the aircraft and resume taxi.

Tire airpressure should be checked with a load in the cockpit. It the tire appears low, inspect the tire pressure with a gage and referece to the aircraft operators manual

Front 10

Wheelbrakes

Back 10

Type of wheelbrake depends on aircraft.

- Older models can rely on thee nose skid to come in contact with the ground
- Current aircraft are fitted with wheelbrakes (drum, disc and friction) which is actuated from the cockpit after landing

Front 11

Trim devices

Back 11

Reduce pilot workload for pilot. Help maintain a desired airspeed.


(response 1 of 1)

Front 12

Tow hook devices
- Types
- Features of type

Back 12

Nose-mounted (aero tow) and CG tow hooks (ground launch)


(response 1 of 2)

Hint 12

All tow hooks have a safety feature that if back pressure if applied, the release will automatically open. Part of preflight is to check this function.


(response 2 of 2)

Front 13

Landing gear; types, purpose, care and feeding

Back 13

Gliders typically have a main landing wheel. Gliders can also have a nose wheel or skid and tail wheel. Many glider also have wing-tip wheels or wing-tip skids.

Care should be taken to not drag or skid nose or tail wheels when turning the glider. This can lead to damage or shortened tire life. When taxiing, use a tail dolly to turn the aircraft or stop taxi, lift the tail to turn the aircraft and resume taxi.