Front seat occupants 387 lb rear seat occupants 293

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Front seat occupants387 lbRear seat occupants293 lbFuel35 gal45 pounds.A.220 pounds.B.63 pounds.C.Answer (A) iscorrect. (PHAK Chap 10) (?) The maximum allowable weight on the Moment Limits vs. Weightchart (Fig. 33) is 2,950 pounds. The total of the given weights is 2,905 lb. (including the empty weight of theairplane at 2,015 lb. and the fuel at 6 lb./gal.), so baggage cannot weigh more than 45 pounds.It is still necessary to compute total moments to verify that the position of these weights does not move the CGout of CG limits.The total moment of 2,459 lies safely between the moment limits of 2,422 and 2,499 on Fig. 33, at themaximum weight, so this airplane can carry as much as 45 lb. of baggage when loaded in this manner.Moment/100Weightlb.-in.Empty weight w/oil2,0151,554Front seat387329Rear seat293355Fuel, main (35 gal.)210158Baggage45632,9502,459Answer (B) isincorrect. This baggage weight would load the airplane above its maximum gross weight.Answer (C) isincorrect. This baggage weight would load the airplane above its maximum gross weight.Gleim FAA Test Prep:Private Pilot(67 questions)
[64] Gleim #: 5.10.64(Refer to Figure 32, Figure 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 weighed2,690 pounds and the MOM/100 was 2,260 just prior to the passenger transfer?
Copyright 2015 Gleim Publications Inc.Page 36Printed for Mahene Lewis
Answer (A) iscorrect. (AWBH Chap 2) (?) The requirement is the effect of a change in loading. Look at Fig. 32 foroccupants. Losing the 180-lb. passenger from the front seat reduces the MOM/100 by 153. Moving the 204-lb.passenger from the rear seat to the front reduces the MOM/100 by about 74 (247 – 173). The total moment reductionis thus about 227 (153 + 74). As calculated below, the CG moves forward from 84.01 to 81.00 inches.Old CG=226,000 lb.-in.=84.01 in.2,690 lb.New CG=203,300 lb.-in.=81.00 in.2,510 lb.
[65] Gleim #: 5.10.65(Refer to Figure 32, Figure 33.) What effect does a 35-gallon fuel burn (main tanks) have on the weight and balance ifthe airplane weighed 2,890 pounds and the MOM/100 was 2,452 at takeoff?

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Term
Fall
Professor
Richard Binkley
Tags
Thermodynamics, Atmosphere, Standard conditions for temperature and pressure, Runway

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