In contrast aircraft certificated under the older Civil Air
Regulations (CARs) established certificated empty weight
under similar conditions as the newer aircraft with the
important exception that the aircraft weight did not include
full oil, only undrainable oil. Mechanics and repair stations
should consult the appropriate certification rule when
reestablishing empty weight.
14 CFR part 121. The Federal regulations governing
domestic, flag, and supplemental operations.
14 CFR part 135. The Federal regulations governing
Commuter and On-Demand Operations.
Adverse Loaded CG Check. A weight and balance
check to determine that no condition of legal loading of an
aircraft can move the CG outside of its allowable limits.
Aircraft Specifications. Documentation containing the
pertinent specifications for aircraft certificated under the
CARs