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Question 75-1 : Load factor. for a fixed wing aircraft airplane or glider , load factor is ? [ Exercise takeoff ]

Lift / weight.

exemple 75 Lift / weight.

Question 75-2 : Load factor. for a fixed wing aircraft airplane or glider , when load factor increases ?

Stall speed increases, but the critical angle of attack remains unchanged.

exemple 79 Stall speed increases, but the critical angle of attack remains unchanged.

Question 75-3 : Forces acting on an aircraft. all other things being equal, when temperatures decreases ?

Lift and drag increase.

exemple 83 Lift and drag increase.

Question 75-4 : Forces acting on an aircraft. if velocity is increased on an airplane wing or a rotor blade, at constant angle of attack ?

Lift and drag increase.

exemple 87 Lift and drag increase.

Question 75-5 : Forces acting on an aircraft. lift acts ?

Perpendicular to relative wind.

exemple 91 Perpendicular to relative wind.

Question 75-6 : Forces acting on an aircraft. lift and drag vary ?

As the square of the speed.

exemple 95 As the square of the speed.

Question 75-7 : Forces acting on an aircraft. drag acts ?

Parallel to relative wind.

exemple 99 Parallel to relative wind.

Question 75-8 : Forces acting on an aircraft. for a fixed wing aircraft airplane or glider , in order to maintain a level, co ordinated turn, compared with straight and level flight, the lift must ?

Be greater than in straight flight.

exemple 103 Be greater than in straight flight.

Question 75-9 : Forces acting on an aircraft. for a fixed wing drone maintaining straight and level flight 1 the lift balances weight 2 the lift balances drag 3 the thrust balances drag 4 the thrust balances weight ?

1 and 3.

exemple 107 1 and 3.

Question 75-10 : Forces acting on an aircraft. during a straight and steady flight ?

Lift is equal to weight.

exemple 111 Lift is equal to weight.

Question 75-11 : Forces acting on an aircraft. all other things being equal, when altitude increases ?

Lift and drag decrease.


Question 75-12 : Forces acting on an aircraft. all other things being equal, when temperatures increases ?

Lift and drag decrease.


Question 75-13 : Propellers & rotors. from the hub to the tip of a propeller blade, the angle of attack ?

Decreases.


Question 75-14 : Propellers & rotors. if one of my drone propeller is broken or shows significant signs of wear ?

I replace the propeller by one of same size and pitch.


Question 75-15 : Propellers and rotors. lift generated by a blade depends on 1 airmass density 2 relative wind speed 3 blade area 4 blade's angle of attack 5 airfoil shape ?

1, 2, 3, 4, 5.



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