INTRODUCTION
This section describes the procedure for establishing the basic empty weight
and moment of the aircraft. Loading procedure information is also provided.
AIRCRAFT WEIGHING PROCEDURES
PREPARATION
a. Carry out weighing procedure inside closed hangar
b. Remove from cabin any objects left unintentionally
a. Insure on board presence of:
Flight manual, airnavigation certificate, navigation charts etc.
d. Align nose wheel
e. Drain fuel via specific drain valve.
f. Oil, hydraulic fluid and coolant to operating levels
g. Move sliding seats to most forward position
h. Raise flaps to fully retracted position (0°)
i. Place control surfaces in neutral position
j. Place scales (min. capacity 150 kg) under each wheel
LEVELING
a. Level the aircraft using the cabin floor as datum
b. Center bubble on level by deflating nose tire
WEIGHING
a. Record weight shown on each scale
b. Repeat weighing procedure three times
c. Calculate empty weight
DETERMINATION OF C.G. LOCATION
a. Drop a plumb bob tangent to the leading edge (in non-tapered area of one
half-wing, approximately one meter from wing root) and trace reference
mark on the floor.
b. Repeat operation for other half-wing.
c. Stretch a taught line between the two marks
d. Measure the distance between the reference line and main wheel axis
e. Using recorded data it is possible to determine the aircraft's C.G. location
and moment (see following table)
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