CSP−900RMM−2MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 201
Revision 32
08-10-00
WEIGHT AND BALANCE
MAINTENANCE PRACTICES
1. Weight and Balance
(Ref. Figure 204 and Figure 205)
Helicopter modifications and removal or
addition of systems or components, result in
changes to weight and balance. These changes
must be recorded on the Basic Weight and
Balance Form, refer to the Rotorcraft Flight
Manual (Ref. Section 01-00-00, Table 201).
The Basic Weight Check List is supplied with
each helicopter, as part of the Rotorcraft Flight
Manual. It lists standard or optional systems
and components installed on the helicopter by
serial number.
Weight and center of gravity changes made
between when you weigh the helicopter, must
be recorded in the weight and balance record.
This will prevent a possible bad effect on the
helicopters flight properties.
Basic weight and center of gravity is found by
doing a weight of the helicopter without
persons and load. Basic weight does include
unusable fuel, full fluids, lubricants and
installed systems and components.
The maximum gross weight of the helicopter is
specified in the Rotorcraft Flight Manual (Ref.
Section 01-00-00, Table 201).
2. Center of Gravity Limits
Center of gravity limits are shown in the
Rotorcraft Flight Manual (Ref. Section
01-00-00, Table 201).
A. Prepare To Weigh Helicopter
(Ref. Figure 202 and Figure 203)
NOTE: Weigh helicopter without fuel.
(1). Connect helicopter to electrical ground
(Ref. Section 10-10-00).
(2). Defuel helicopter (Ref. Section
12-00-00).
(3). Check lubricant level at engine oil tank,
main rotor gear box sight gages, and
hydraulic fluid reservoir sight gages
(Ref. Section 12-00-00).
(4). If necessary, add lubricant if indication
is less than full. Fluid weights are
listed in Servicing Materials (Ref.
Section 12-00-00, Table 1).
(5). Weigh helicopter indoors on a hard
surface and free from wind.
FOD
(6). Make sure helicopter has no tools or
unwanted materials.
(7). Find the weight and longitudinal
(LONG)/lateral (LATR) moment arms
of all equipment on the helicopter when
you weigh it, that will not be part of the
helicopter basic weight.
(8). Record on Surplus and Missing Equip
ment Form.
(9). Record the total weight, arms, and
moments on the Actual Weight and
Balance Form.
(10). Find the weight and LONG/LATR
moment arms of all equipment that will
be installed after the helicopter is
weighed, and will be part of the
helicopter basic weight.
(11). Record on Surplus and Missing Equip
ment Form.
(12). Record the total weight, arms, and
moments on the Actual Weight and
Balance Form.
WARNING
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