SECTION 3
WEIGHT & BALANCE
3 Introduction
This section describes the procedure for establishing the basic empty weight and moment of the aircraft. Loading procedure
information is also provided.
3.1 Aircraft weighing procedures
3.1.1 Preparation
• Carry out weighing procedure inside closed hangar
• Remove from cabin any objects left unintentionally
• Insure Flight Manual is on board
• Align nose wheel
• Drain fuel via the specific drain valve
• Oil, hydraulic fluid and coolant to operating levels
• Move sliding seats to most forward position
• Raise flaps to fully retracted position (0°)
• Place control surfaces in neutral position
• Place scales (min. capacity 200 kg 440 pounds) under each wheel
• Level the aircraft using cabin floor as datum
• Center bubble on level by deflating nose tire
• Record weight shown on each scale
• Repeat weighing procedure three times
3.1.2 Calculate empty weight Weighing
• Record weight shown on each scale
• Repeat weighing procedure three times
• Calculate empty weight
3.1.3 Determination of C.G. location
• 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.
• Repeat operation for other half-wing.
• Stretch a taught line between the two marks
• Measure the distance between the reference line and main wheel axis
• Using recorded data it is possible to determine the aircraft's C.G. location and moment (see following table)
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