HELICOPTER WEIGHING (AIRCRAFT ON PLATFORM SCALES)
This task covers:
Preparation. Weighing. Calculations.
G.1A.2.. Initial Setup
Aircraft mechanics tool kit (item 376, App H)
Aircraft maintenance kit (item 207, App H) (p/o item 25
and 194, App H) (plumb bob leveling kit)
Aircraft towbar (item 395, App H)
100-foot measuring tape (item 348, App H)
Tire inflator assembly (item 364, App H)
Weighing kit (item 196, App H)
Axle Extension (item 485, App D)
Attack Helicopter Repairer/Technical
Three persons to assist
One Tow Tug Operator
Helicopter cleaned inside/outside and dry
Helicopter defueled, SPA method
Engine oil system serviced
APU oil system serviced
Engine nose gearboxes serviced
Intermediate gearbox serviced
Tail rotor gearbox serviced
Main transmission serviced
Hydraulic system serviced
MLG struts serviced
When weighing helicopter, ensure that area is roped off and that multiple warning signs that
read HELICOPTER ON SCALES are prominently displayed. Do not allow unauthorized per-
sons in or around helicopter while it is on scales.
The helicopter must be defueled before weighing. Helicopter Center of Gravity (CG) cannot
be accurately determined when weighed with fuel on board using this non-level weighing
Weighing should be done inside a hangar with all doors closed. Weighing the helicopter outdoors is
not recommended as wind velocities will affect the accuracy of scale readings.
Wing Stores are not part of the aircraft BASIC WEIGHT and shall be removed before weighing.
Weighing with wing stores installed will cause an incorrect center of gravity calculation when
converting from as weighed condition to corrected to level attitude.
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