Class 1 aircraft require weight and moment
record documentation, but they do not require
loading control for normal configurations.
Normal configurations are defined as configura-
tions on aircraft that have previously been flown,
and the weight, structural, and/or center of
gravity limits cannot be exceeded.
Class 2 aircraft are those aircraft that require
basic weight and moment documentation and
loading control to ensure that loading arrange-
ments do not exceed the permissible weight,
structural, and/or center of gravity limits.
All aircraft must be weighed upon completion
of SDLM. Aircraft must also be weighed under
each of the following conditions:
. When changes, modifications, or repairs are
accomplished and calculated or actual weight and
moment data for these changes are not available.
l When recorded weight and balance data
is suspected of being in error.
. When unsatisfactory flight characteristics
are reported by the pilot, and these characteristics
cannot be traced to flight control system mal-
function, improper aircraft loading, or errors in
weight and balance data and/or computations.
. When weight and balance handbook has
been lost or damaged. (A new record must be
WEIGHT AND BALANCE HANDBOOK
The Weight and Balance Data, NA 01-1B-40,
is a technical manual that provides activities with
a standard system of weight and balance control.
It contains brief, instructive information. It is
placed in a permanent binder for forms and
charts, which provide a continuous record and
control of weight and balance of aircraft.
A weight and balance handbook is maintained
for each assigned aircraft. The handbook charts,
forms, and records should be maintained in
accordance with the requirements and instructions
given in NA 01-1B-40 and NA 01-1B-50,
Class 1 aircraft weight and balance handbooks
are stored as directed by your particular activity.
Class 2 weight and balance handbooks are also
stored as directed by your particular activity;
however, they must be stored in a location that
is readily available to the pilot and other personnel
responsible for weight and balance functions.
EXCEPT WHEN BEING TRANSFERRED,
HANDBOOKS ARE NEVER STORED ON
The contents of the weight and balance
handbooks are arranged and maintained in the
1. NA 01-1B-40, with completed title page
2. Record of Weight and Balance Personnel
Figure 6-21.-Chart ABasic Weight Check List Record.