MAULE AEROSPACE TECHNOLOGY, INC.
AIRPLANE FLIGHT MANUAL
MAULE
MX-7-180A
SECTION V
WEIGHT AND
BALANCE
5.1
WEIGHT AND BALANCE: (Cont'd)
The above empty weight includes unusable fuel of ** lbs. at 24 inches and 8 quarts of oil
at minus 36.5 inches, plus all items of equipment as marked on the accompanying
Equipment Lists. The Certificated empty weight is the above weight less 16 lbs.
drainable oil at a minus arm of 36.5 inches and for this airplane is ______________lbs.
The corresponding empty weight center of gravity is ______________inches.
5. Calculations for determining weight, C.G. and moment:
a. Center of Gravity (inches) = L x T - D
W
i.e., C.G. = _____________ - ____________ = ___________inches.
b. Moment (inch pounds) = W x C.G.
i.e., Moment = _____________ x ____________ = ___________inch lbs.
EXAMPLE OF WEIGHT AND BALANCE CALCULATION FOR LOADED AIRCRAFT:
An airplane with an empty weight of 1383 lbs. and empty weight C.G. location of 12.0
inches is loaded with a pilot and front seat passenger, fuel and baggage.
Item
Weight, lbs. C.G. Location Moment, In.lbs.
Empty Weight (including engine oil)
1383
12.0
16,596
Pilot and Front Passenger
340
*
6,800
Fuel - 40 gal. in Mains
240
*
5,760
Baggage (Area "C")
50
*
3,500
2013
16.2
32,656
*Moments can be read directly from the loading graph.
By locating the point corresponding to 2013 lb. aircraft weight and a C.G. location of 16.2
inches on the Center of Gravity Envelope graph, you can see that this point falls within the
envelope, signifying the loading is acceptable.
**Use 18 lbs. for “A” or “B” tank configurations and 27.6 lbs. for “C” or “D”.
FORM 61
PAGE 19
