Searey LSA – Pilot’s Operating Handbook Version 5.0, Revision 8
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6.3 CENTER OF GRAVITY (CG) RANGE AND DETERMINATION
6.3.1 WEIGHT AND BALANCE LIMITS
Pilot Weight (without nose weight)
6.3.2 CENTER OF GRAVITY LIMITS
Maximum Forward C.G. Limit
68 inches in front of wing leading edge (from
root of wing to front of fiberglass nose)
6.3.3 PROCEDURE
All permanent equipment, options and accessories should be installed on
the aircraft prior to weighing. All equipment options and accessories
installed in the aircraft must be listed on the “Installed Equipment List”.
That list becomes part of Weight and Balance Documents. Be sure to
remove any loose equipment, tools, etc. from the aircraft prior to
weighing.
1. The fuel tank should be empty except for unusable fuel. If the fuel
tank is not empty, then the exact amount of usable fuel in the tank
must be determined. Usable fuel weight and its moment must be
deducted from the empty weight calculations before E.W.C.G. can
be accurately determined.
2. Oil and coolant tanks and reservoirs must be properly filled before
weighing. These and any other liquids necessary for normal
operations are considered part of an aircraft’s empty weight.
3. If weighing is done outdoors, make sure there is no wind to affect
the weight measurements. For best results, weigh indoors.
4. The scales must be calibrated correctly. All scales must be set on
level ground. Any equipment placed on the scales when weighing
the aircraft, such as chocks or blocks, should be weighed
separately and the weight deducted from the scale reading.
These weights should be noted for reference, if necessary.
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