06 Stalling & Spinning

The basic stalling speed of an aeroplane is 80 knots. In a level turn with 45° angle of bank, the stalling speed is:

• 33 knots

• 86 knots

• 95 knots

• 113 knots

If the angle of attack is increased above the stalling angle:

• Lift and drag will both decrease.

• Lift will decrease and drag will increase.

• Lift will increase and drag will decrease.

• Lift and drag will both increase.

If the aircraft weight is increased, without change of CG position, the stalling angle of attack will:

• Remain the same.

• Decrease.

• Increase.

• Remain the same. The position of the CG does not affect the stall speed.

The reason for washout being designed into an aircraft wing is to:

• Increase the effectiveness of the flaps.

• Cause the outboard section of the wing to stall first.

• Decrease the effectiveness of the ailerons.

• Cause the inboard section of the wing to stall first.

The stalling speed of an aircraft in straight and level flight is 60 kt, IAS. What is its stalling speed in a level 60° banked turn?

• 85 kt

• 60 kt

• 43 kt

• 120 kt

The stalling speed of an aircraft, assuming weight to be constant, is a function of the:

• Inverse of the Load Factor.

• Indicated airspeed.

• Square of the weight.

• Square root of the Load Factor.

When the aircraft is in a spin, the direction of spin is most reliably found by reference to which of the following indications?

• Artificial horizon

• Slip indicator

• Direction indicator

• Turn needle

An aeroplane will stall at the same:

• Angle of attack and attitude with relation to the horizon.

• Airspeed, regardless of the attitude with relation to the horizon.

• Angle of attack, regardless of the attitude with relation to the horizon.

• Indicated airspeed, regardless of altitude, bank angle and load factor.

Washout is incorporated into wing design so that the:

• Wing tip has a greater angle of attack than the wing root.

• Wing tip has a greater angle of incidence than the wing root.

• Wing tip will stall before the wing root.

• Wing root will stall before the wing tip.

An aeroplane wing stalls when:

• The indicated airspeed is too low.

• The critical angle of attack is exceeded.

• The laminar airflow becomes turbulent.

• It is subjected to unusually high 'G' forces.