Flylight Airsports SkyRanger Nynja 600, Operator'S Maintenance Manual

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SkyRanger Nynja 600 Operators Manual issue 1
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Any modification added or removed from the aircraft must be
accounted for either as a calculation amendment in the report or by a
fresh weighing. Only an approved inspector can perform these tasks.
Also at each weighing or amendment, details of the results must be
entered in the aircraft logbook.
Once you have the empty weight and moment for your specific aircraft
from the weight and balance report (** in the example below), you can
use this to calculate Centre of gravity position for a specific flight using
a simple table. See example below for 2 x 100Kg crew flying with 30Kg
of fuel and 10 kg of baggage:
Item weight arm Moment (weight
x arm)
Empty weight 288 ** +0.353 ** 102 **
Crew 200 +0.15 / +0.22 30
Fuel 30 -0.35 -10.5
Baggage 10 -0.35 -3.5
Other
Total weight 528 Total moment 118
The units used do not matter, as long as the same units are used in all
cases. It is recommended to use kg and m for consistency.
Note the plus / minus signs do matter. Plus is forward of datum, minus
is aft of datum.
Centre of Gravity position = Total moment / Total empty weight
In this example,
CG position = 118 / 528 = + 0.223M (forward of datum)
Blank versions of this table are on the following pages. These may be
printed out for use, or filled in with loadings you often use or may be
considering.
Alternatively, several apps can be used for this calculation, and some
are features in GPS navigation systems such as SkyDemon.