TM 1-1510-223-10 6-6           Change 3 Table 6-5.  Center of Gravity Limits (Landing Gear down) Restricted Category WEIGHT CONDITION FORWARD CG LIMIT AFT CG LIMIT 16,200 LBS (MAXIMUM TAKE-OFF) 188.0 195.1 15,400 LBS (MAXIMUM LANDING) 186.0 195.1 13,100 LBS (MAXIMUM ZERO FUEL) 181.0 195.1 12,600 LBS OR LESS 179.0 195.1 NOTE: The moment/100 for retraction of the landing gear is 61.6. Loadings based on wheels-down condition which fall within the limiting moments in the table, will be satisfactory for flight with landing gear retracted. Section  IV. CENTER OF GRAVITY 6-11.   CENTER OF GRAVITY LIMITATIONS. WARNING When the mission gear is removed, the forward center of gravity limit is easily exceeded. Center of gravity limitations are expressed in ARM inches which refers to a positive measurement from the aircraft’s   reference   datum.   The   forward   CG   limit   at 12,600 lbs., or less, is 179.0 ARM inches. The forward- sloping CG limit line is a straight line from 12,600 lbs. to 16,200 lbs, ending at fuselage station 188.0. At 16,200 lbs., or less, the aft CG limit is 195.1 ARM inches. The Center of Gravity Loading Diagram (fig. 6-3) is designed to  establish  forward  and  aft  CG  limitations.  When  the mission gear is removed, it may be necessary to add re- movable ballast or baggage in the aft baggage compart- ment. Section  V. CARGO LOADING 6-12.   LOAD PLANNING. The basic factors to be considered in any loading situ- ation are as follows: a.   Cargo  shall  be  arranged  to  permit  access  to  all emergency equipment and exits during flight. b.   Floorboard structural capacity shall be considered in the loading of heavy or sharp-edged containers and equipment. Shorings shall be used to distribute highly condensed weights evenly over the cargo areas. Use of the  floor  seat  tracks  to  support  loads  is  encouraged where possible. c.   All cargo shall be adequately secured to prevent damage to the aircraft, other cargo, or the item itself. 6-13.   LOADING PROCEDURE. NOTE The cabin airstair door is weight limited to a max- imum of 300 pounds to prevent possible struc- tural damage. Loading of cargo is accomplished through the cabin door (21.5 in. X 50.0 in.) or the cargo door. 6-14.   SECURING LOADS. All  cargo  shall  be  secured  with  restraints  strong enough to withstand the maximum force exerted in any direction. The maximum force can be determined by mul- tiplying the weight of the cargo item by the applicable load factor. These established load factors (the ratio be- tween the total force and the weight of the cargo item) are 1.5 to the side and rear, 3.0 up, 6.6 down, and 9.0 for- ward.