TM 55-1520-240-23-1
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LEVEL AND WEIGH HELICOPTER (3-POINT) (AVIM)
(Continued)
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Jacking when helicopter weight is
over limit can damage structure and
injure personnel. Do not jack when
weight is over limit.
RAISE HELICOPTER
1.
Determine the estimated gross weight and CG
position from the last weighing and information
on DD Form 365-3. This data will be necessary
in determining the allowable gross weight and
CG position for maximum forward point jacking
loads from curve (1) on graph (2) below.
Blades can be damaged if there is not
enough clearance.
2.
Make sure there will be clearance for blades after
jacking. Make sure cargo ramp is closed.
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