Change 3 6-1
WEIGHT/BALANCE AND LOADING
EXTENT OF COVERAGE.
Sufficient data has been provided so that, knowing the
basic weight and moment of the aircraft, any combination
of weight and balance can be computed.
Army model RC-12N aircraft are in Weight and Bal-
ance Class 1. When operating in a passenger/cargo con-
figuration, the aircraft weight and balance classification
becomes a Class 2. Additional directives governing
weight and balance classifications 1 and 2 aircraft forms
55-1500-342-23, and DA PAM 738-751.
AIRCRAFT COMPARTMENTS AND STATIONS.
The aircraft is separated into two compartments asso-
ciated with loading. These compartments are the cockpit
and the cabin. Figure 6-1 shows the general description
of aircraft compartments.
WEIGHT AND BALANCE
The data to be inserted on weight and balance charts
and forms are applicable only to the individual aircraft,
the serial number of which appears on the title page of
the booklet entitled WEIGHT AND BALANCE DATA sup-
plied by the aircraft manufacturer and on the various
forms and charts which remain with the aircraft. The
charts and forms referred to in this chapter may differ in
nomenclature and arrangement from time to time, but the
principles on which they are based will not change.
CHARTS AND FORMS.
The standard system of weight and balance control
requires the use of several different charts and forms.
Within this chapter, the following are used:
1. Chart C - Basic Weight and Balance Record,
DD Form 365-3.
2. Form F - Weight and Balance Clearance Form
F, DD Form 365-4 (Tactical).
The aircraft manufacturer inserts all aircraft identify-
ing data on the title page of the booklet entitled WEIGHT
AND BALANCE DATA and on the various charts and
forms. All charts, including one sample Weight and Bal-
ance Clearance Form F, if applicable, are completed at
time of delivery. This record is the basic weight and bal-
ance data of the aircraft at delivery. All subsequent
changes in weight and balance are compiled by the
weight and balance technician.
CHART C - BASIC WEIGHT AND BALANCE
RECORD, DD FORM 365-3.
Chart C is a continuous history of the basic weight and
moment resulting from structural and equipment
changes made in service. At all times, the last weight and
moment/100 entry is considered the current weight and
balance status of the basic aircraft.
WEIGHT AND BALANCE CLEARANCE, DD
FORM 365-4 (TACTICAL).
Refer to TM 55-1500-342-23 for DD Form 365-4 in-
structions. Refer to table 6-1 through 6-5 for weight and