ENSTROM 280FX - Door C.G. and Weight; Copilot Flight Controls C.G. and Weight

ENSTROM 280FX OPERATOR’S MANUAL 6-9
Rev. 12
Report No. 28-AC-020 Dec 3/18
6-4. Door C.G. and Weight
1. If one or both doors are removed for operation, calculate
the weight and balance taking into account the following
information:
a. S/N 2166 and prior:
Longitudinal Lateral
Weight
(lb)
Arm
(in)
Moment
(1000 in-lb)
Arm
(in)
Moment
(in-lb)
a. Right door 10.2 59.8 0.61 29.25 298
b. Left door 10.2 59.8 0.61 -29.25 -298
c. Both
doors
20.4 59.8 1.22 0 0
b. S/N 2167 and subsequent:
Longitudinal Lateral
Weight
(lb)
Arm
(in)
Moment
(1000 in-lb)
Arm
(in)
Moment
(in-lb)
a. Right door 9.03 59.8 0.54 29.25 264
b. Left door 9.03 59.8 0.54 -29.25 -264
c. Both
doors
18.1 59.8 1.08 0 0
2. Removal or installation of the door(s) will change the
helicopter weight and c.g. Subtract the weight and
moment of the door(s) when removing them and add the
weight and moment when reinstalling. These changes
shall be recorded on the Weight and Balance form
(Figure 6-7) by a licensed mechanic to maintain the
running basic total weight, arm, and moment, or the
pilot can account for the door weight and c.g. changes in
the individual weight and balance for that flight as he
would for any other loose equipment.
6-5. Copilot Flight Controls C.G. and Weight
1. Refer to SIL 0179 for weight and balance information.
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