Stall/Spin Quiz

GLIDING FEDERATION OF AUSTRALIA

Stall/spin accidents are most common in which of the following situations?

1. Takeoff and landing

2. During high-speed cruise

3. Thermalling

Answer:-• Takeoff and landing

Following launch failure in a climb, the pilot's first action should be to:

1. Hold climb attitude.

2. Locate an emergency landing field.

3. Lower the nose to best glide attitude.

Answer:-• Lower the nose to best

glide attitude

A glider wing never stalls when:

1. The angle of attack is less than the stall angle of attack.

2. The indicated airspeed is above the stall speed.

3. The pitch attitude is nose-down.

Answer:-• The angle of attack is

less than the stall angle of attack.

The indicated airspeed at which a glider will stall:

1. Increases with increased altitude.

2. Decreases with increased altitude.

3. Depends on temperature and humidity as well as altitude.

4. Does not change with altitude.

Answer:-

• Does not change with altitude.

Which of the following statements is false?

1. A glider can stall at airspeeds above the unaccelerated stall speed.

2. A glider can stall at any angle of attack.

3. A glider can be in an unstalled condition at airspeeds below the stall speed.

4. Stall speed increases with increasing load factor.

Answer:-• A glider can stall at any

angle of attack.

Incipient spin recovery is made by:

1. Applying forward stick followed by aileron against the spin.

2. Applying forward stick.

3. Applying full forward stick followed by co-ordinated rollout.

4. Applying rudder against the rotation followed by forward stick.

Answer:-

• Applying forward stick

Which of the following characteristics of a spin is not characteristic of a spiral dive?

1. Rapid loss of altitude

2. High rate of rotation

3. Stalled wing

4. Steep nose-down pitch attitude

Answer:-• Stalled wing

Intentional spin entry is made with:

1. Full nose-up elevator deflection and full rudder in the direction of the spin.

2. A steep diving spiral.

3. Rudder and aileron cross-controlled.

Answer:-• Rudder and aileron

cross-controlled.

Spin recovery is made by:

1. Applying forward stick.

2. Applying full forward stick followed by co-ordinated rollout.

3. Applying forward stick followed by aileron against the spin.

4. Applying rudder against the rotation followed by forward stick.

Answer:-

• Applying rudder against the rotation followed by forward stick.

An aft centre of gravity location usually:

1. Makes it easier to enter and more difficult to recover from stalls and spins.

2. Makes it more difficult to enter and easier to recover from stalls and spins.

3. Can be moved forward during a spin to assure recovery.

4. Has little effect on stalls and spins.

Answer:-• Makes it easier to enter

and more difficult to recover from stalls and spins.

A glider is in a glide at best gliding speed. If the pilot increases pitch attitude resulting in a nose-up glide at a

reduced indicated airspeed (say to minimum sink speed), the gliding distance:

1. Increases.

2. Decreases.

3. Remains the same.

4. May increase or decrease depending on the glider.

Answer:-• Decreases.

Ailerons tend to have reduced effectiveness in reducing the risk of a spin at high angle of

attack and low airspeed:1. Due to high dynamic

pressure.

2. Because deflecting an aileron may cause it to stall.

3. Because they are balanced.

4. Because they cause yaw in the direction of a turn.

Answer:-

• Because they cause yaw in the direction of a turn.

Ailerons:

1. Are effective for spin recovery.

2. Act in the normal sense at the high angles of attack in a spin.

3. Should not be neutralised in a spin.

4. Have an effect that is dependent on glider centre of gravity position.

Answer:-

• Act in the normal sense at the high angles of attack in a spin.

From which of these attitudes is the glider pilot LEAST likely to enter a spin

inadvertantly?

Horizon

A

Normal attitude

B

Nose High

C

Nose Low

The answer is B. 90% of pilots get this wrong!

Horizon

A

Normal attitude

B

Nose High

C

Nose Low

A presentation byA presentation byChristopher ThorpeChristopher Thorpe

Chief Flying InstructorChief Flying InstructorBeaufort Gliding ClubBeaufort Gliding Club