This handbook begins with the basic principle of aircraft weight and balance control, emphasizing its importance
and including examples of documentation furnished by the aircraft manufacturer and by the faa to ensure the aircraft
weight and balance records contain the proper data.

Procedures for the preparation and the actual weighing of an aircraft are described, as are the methods of
determining the location of the empty-weight center of gravity (eWCG) relative to both the datum and the mean
aerodynamic chord (maC).

Loading computations for general aviation aircraft are discussed, using both loading graphs and tables of weight
and moment indexes

Information is included that allows an a&p mechanic or repairman to determine the weight and center of gravity (CG)
changes caused by repairs and alterations. this includes instructions for conducting adverse-loaded CG checks, also
explaining the way to determine the amount and location of ballast needed to bring the CG within allowable limits.

The unique requirements for helicopter weight and balance control are discussed, including the determination of
lateral CG and the way both lateral and longitudinal CG change as fuel is consumed.