TM 1-1510-262-10
Table 6-4.
Useful Load Weights and Moments/Usable Fuel, 6.8 to 7.1 LB/GAL -- Continued
6.8 LB/GAL
6.9 LB/GAL
7.0 LB/GAL
7.1 LB/GAL
GALLON
MOMENT
MOMENT
MOMENT
MOMENT
WEIGHT
/100
WEIGHT
/100
WEIGHT
/100
WEIGHT
/100
490
3332
6292
3381
6385
3430
6477
3479
6570
500
3400
6431
3450
6526
3500
6620
3550
6715
510
3468
6571
3519
6666
3570
6764
3621
6861
520
3536
6708
3588
6807
3640
6905
3692
7004
530
3604
6847
3657
6948
3710
7048
3763
7149
540
3672
6987
3726
7088
3780
7192
3834
7295
542
3686
7014
3740
7117
3794
7220
3848
7323
SECTION III. FUEL/OIL
6-9. FUEL LOAD.
Fuel loading imposes a restriction on the amount of load which can be carried. The required fuel must irst be deter-
mined, then that weight subtracted from the total weight of crew and fuel. Weight up to and including the remaining
allowable capacity can be subtracted directly from the weight of crew and fuel. As the fuel load is increased, the
loading capacity is reduced. Figure 6-2 depicts the density variation of aviation fuel.
6-10. FUEL AND OIL DATA.
a. Usable Fuel Moment Tables. Fuel Moment Tables 6-3 and 6-4 show usable fuel moments/100 for US gallons
(or pounds) for fuel speciic weights ranging from 6.4 to 7.1 pounds per gallon. Fuel moments should be determined
by entering the table by fuel weight and using the column which represents the speciic weight of the fuel being used.
The full tank usable fuel weight will vary depending upon fuel speciic weight. The fuel quantity is calibrated for
correct indication using JP-5 or JP-8. When using other fuels multiply the indicated fuel in pounds by 0.99 for JP-4
or by 0.98 for aviation gasoline.
Figure 6-2 is provided to show the general range of speciic weights to be expected with the change in fuel temper-
ature. Speciic weight will vary between different lots of the same type of fuel at the same temperature by as much
as 0.5 pounds per gallon. The following approximate fuel speciic weights at 15 degrees Celsius may be used for
most mission planning.
FUEL TYPE
SPECIFIC WEIGHT
JP-4
6.5 lb/gal
JP-5
6.8 lb/gal
JP-8
6.7 lb/gal
b. Oil Data. Total oil weight is 52 pounds and is included in the basic weight of the aircraft.
Table 6-5.
Center of Gravity Limits (Landing Gear Down) Restricted Category
WEIGHT CONDITION
FORWARD CG LIMIT
AFT CG LIMIT
188.7
195.1
16,500 lbs. (Maximum Take-Off)
186.7
195.1
15,675 lbs. (Maximum Landing)
180.3
195.1
13,100 lbs. (Maximum Zero Fuel)
