FAA PPL Test Prep: Ch. 8 (2 of 3): Aircraft Performance Questions

(Refer to Figures 32 and 33.) What effect does a 35-gallon fuel burn (main tanks) have on the weight and balance if the airplane weighed 2,890 pounds and the MOM/100 was 2,452 at takeoff?

a) Weight is reduced by 210 pounds and the CG is aft of limits.
b) Weight is reduced by 210 pounds and the CG is unaffected.
c) Weight is reduced to 2,680 pounds and the CG moves forward.

a) Weight is reduced by 210 pounds and the CG is aft of limits.

(Refer to Figure 32 and 33.) What is the maximum amount of baggage that can be carried when the airplane is loaded as follows?
Front seat occupants... 387 lb
Rear seat occupants... 293 lb
Fuel... 35 gal

a) 45 pounds.
b) 63 pounds.
c) 220 pounds.

a) 45 pounds.

(Refer to Figure 32 and 33.) Calculate the weight and balance and determine if the CG and the weight of the airplane are within limits.
Front seat occupants... 350 lb
Rear seat occupants... 325 lb
Baggage... 27 lb
Fuel... 35 gal

a) CG 81.7, out of limits forward
b) CG 83.4, within limits
c) CG 84.1, within limits

b) CG 83.4, within limits

(Refer to Figures 32 and 33.) Determine if the airplane weight and balances is within limits.
Front seat occupants... 340 lb
Rear seat occupants... 295 lb
Fuel (main wing tanks)... 44 gal
Baggage... 54 lbs

a) 20 pounds overweight, CG aft of aft limits.
b) 20 pounds overweight, CG within limits
c) 20 pounds overweight, CG forward of forward limits

b) 20 pounds overweight, CG within limits

(Refer to Figure 67.) What effect does a 30-gallon fuel burn have on the weight and balance if the airplane weighted 2,784 pounds and the MOM/100 was 2,222 at takeoff?

a) No effect on CG
b) Moment will increase to 2,357 in-lb
c) Moment will decrease to 2,087 in-lb.

c) Moment will decrease to 2,087 in-lb.

(Refer to Figures 32 and 33.) With the airplane loaded as follows, what action can be taken to balance the airplane?

a) Fill the auxiliary wing tanks.
b) Add a 100-pound weight to the baggage compartment.
c) Transfer 10 gallons of fuel from the main tanks to the auxiliary tanks.

b) Add a 100-pound weight to the baggage compartment.

(Refer to Figures 32 and 33.) Determine if the airplane weight and balance is within limits.
Front seat occupants... 415 lb
Rear seat occupants... 110 lb
Fuel, main tanks... 44 gal
Fuel, aux. tanks... 19 gal
Baggage... 32 lb

a) 19 pounds overweight, CG within limits
b) 19 pounds overweight, CG out of limits forward
c) Weight within limits, CG out of limits.

c) Weight within limits, CG out of limits.

(Refer to Figures 32 and 33.) Upon landing, the front passenger (180 pounds) departs the airplane. A rear passenger (204 pounds) moves to the front passenger position. What effect does this have on the CG if the airplane weighed 2,690 pounds and the MOM/100 was 2,260 just prior to the passenger transfer?

a) The CG moves forward approximately 3 inches.
b) The weight changes, but the CG is not affected.
c) The CG moves forward approximately 0.1 inch.

a) The CG moves forward approximately 3 inches.

(Refer to Figures 32 and 33.) Which action can adjust the airplane's weight to maximum gross weight and the CG within limits for takeoff?
Front seat occupants... 425 lb
Rear seat occupants... 300 lb
Fuel, main tanks... 44 gal

a) Drain 12 gallons of fuel.
b) Drain 9 gallons of fuel.
c) Transfer 12 gallons of fuel from the main tanks to the auxilliary tanks.

b) Drain 9 gallons of fuel.