Tecnam P92 Echo MK2 - SECTION 3 WEIGHT & BALANCE; 3.1 Aircraft weighing procedures; 3.1.3 Determination of C.G. location

P92 LSA
Flight Manual
Rev.0
32
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
 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 baggage 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 (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)