W E I G H T T E R M I N O L O G Y
WEIGHT EMPTY
+
Guns, unusable fuel, oil, ballast, survival kits, oxygen, and any other internal
or external equipment not disposed of during flight and NOT listed in the Chart E.
+
Any Basic Weight Check List Record (Chart A) items which are missing from
the aircraft.
=
BASIC WEIGHT.
+
Crew, crew baggage, steward equipment, emergency equipment, special mission
fixed equipment, and all other nonexpendable items (such as fixed pylons and
racks) not in basic weight.
=
OPERATING WEIGHT
+
Usable Fuel
+
Payload items; such as cargo, ammunition, passengers, stores, disposable fuel
tanks. and transfer fuel.
—
TAKEOFF GROSS WEIGHT
—
Load items expended in-flight; such as fuel, stores, ammunition, cargo and
paratroops.
=
LANDING GROSS WEIGHT
Figure 3-17.—Weight terminology.
back of these cards, which cover one specific area of
aircraft lubrication. The top section of the card gives the
card number, MRC publication number, frequency of
application, time to do this section of cards, man-power
required, name of area being lubricated, and if you need
electrical/hydraulic power. The card illustrates the unit
to be lubricated, and the number and types of fittings.
The type of grease or oil to be used is listed with each
item.
Prior to lubricating any parts, consult the MIMs or
MRCS for proper equipment and type of lubricant.
Consult the MSDS for any special safety precautions.
Remove all foreign matter from joints, fittings, and
bearing surfaces. A clean, lint-free cloth soaked with a
cleaning solvent may be used for this purpose. The
lubricant should be applied sparingly to prevent
accumulation of dust, dirt, and other foreign matter.
When you apply lubricants through pressure-type
fittings with a grease gun, make sure the lubricant
appears around the bushing. If no grease emerges
around the bushing, check the fitting and grease gun for
proper operation. You should make sure the grease gun
is properly attached to the fitting, and wipe up all excess
grease when done. If the flush-type fitting is being used,
the grease gun must be equipped with the flush-type
adapter. Hold the adapter perpendicular to the surface
of the fitting when you use the gun. A 15-degree
variation is permitted.
WEIGHING AND BALANCING
AIRCRAFT
Learning Objective: Identify the various
methods of weighing aircraft, and recognize
the flight characteristics of the improperly
weighed or balanced aircraft.
3-28
