b.
Crew and passengers with no equipment: compute weight according to each individual’s estimate.
6.12 MEDEVAC EQUIPMENT MOMENTS.
a.
Litter moments are in Figure 6-4.
b.
Medevac system (excluding litters) weight and mo-ments are included in the helicopter basic weight and mo-ments Form 365-3 when installed.
c.
Litter weight is estimated to 25 pounds which in-cludes litter, splints, and blankets.
d.
Medical equipment and supplies should be stored per unit loading plan and considered in weight and balance computations.
ROW 1 ROW 2 ROW 3 ROW 4
PILOT, COPILOT AND AMBULATORY SEATING POSITION DIAGRAM
PILOT, COPILOT, TRACKABLE SWIVAL SEATS AND LITTER POSITION DIAGRAM
AB0571
SA
Figure 6-3. Personnel Stations
LITTER MOMENTS
MOMENT/1000
AB0570
DATA BASIS: CALCULATED
SA
Section V MISSION EQUIPMENT
6.13 CARGO HOOK AND RESCUE HOIST MOMENTS.
Figures 6-5 and 6-6 show cargo hook and rescue hoist moments respectively.
CARGO MOMENTS . CARGO HOOK
CARGO HOOK MOMENTS/1000 AA8802
SA
RESCUE HOIST MOMENTS
ARM = 335.8
EXAMPLE
WANTED MOMENT OF RESCUE HOIST LOAD
KNOWN
RESCUE HOIST LOAD = 480 POUNDS
METHOD
ENTER WEIGHT AT 480 POUNDS.MOVE RIGHT TO LINE. MOVE DOWN. READ MOMENT / 1000 = 160
MOMENT / 1000
AK0045
SA
Figure 6-6. Rescue Hoist Moments
Section VI CARGO LOADING
6.14 CABIN DIMENSIONS.
Refer to Figure 6-7 for dimensions. For loading, and weight and balance purposes, the helicopter fuselage is di-vided into .ve compartments, labeled A through E, three of which are in the cabin, C, D, and E (Figure 6-7). Tiedown .ttings are rated at 5,000 pounds each. Cargo carrier re-straint rings are at stations 308 and 379, to cover the 71 inches of longitudinal space.
6.15 CABIN DOORS.
Cabin doors are at the rear of the cabin on each side of the fuselage. The door openings are 54.5 inches high and 69 inches wide; maximum package sizes accommodated by the openings are 54 inches high by 68 inches wide.
6.16 MAXIMUM CARGO SIZE DIAGRAM FOR LOADING THROUGH CABIN DOORS.
Figure 6-7 shows the largest size of cargo of various shapes that can be loaded into the cabin through the cabin doors.
6.17 TIEDOWN FITTINGS AND RESTRAINT RINGS.
The tiedown .ttings (Figure 6-7) installed on the cargo .oor can restrain a 5,000-pound load in any direction. All tiedown .ttings incorporate studs that are used to install the troop seats. Eight net restraint rings in the cargo compart-ment prevent cargo from hitting the bulkhead at station 398, or entering the crew area. Each restraint ring is rated at 3500-pound capacity in any direction.
6.18 EQUIPMENT LOADING AND UNLOADING.
6.18.1 Data Prior to Loading. The following data should be assembled or gathered by the loading crew be-fore loading (Refer to FM 55-450-2, Army Helicopter In-ternal Load Operations):
a.
Weight of the individual items of cargo.
b.
Overall dimensions of each item of cargo (in inches).
c.
The helicopter’s center of gravity.
d.
Floor loads for each item of cargo.
e.
Any shoring that may be required.
f.
When required, the location of the center of gravity of an individual item of cargo.
6.18.2 Cargo Center of Gravity Planning. The detail planning procedure consists of four steps, as follows:
a.
Determine ALLOWABLE LOAD from LIMITA-TIONS section of DD Form 365-4.
b.
Plan the location in the helicopter for the individual items of cargo. Since the CG of the load is determined by the station method, then speci.c locations must be assigned to each item of cargo.
c.
Determine the CG of the cargo load as planned. Re-gardless of the quantity, type, or size of cargo, use the station method.
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