MIL-STD-875A, and it lists the codes used to create the
equipment designators.
The new designations will be the same throughout the
military services. However, present equipment with old
designations will remain unchanged; they will not be
redesignated unless they undergo an alteration or
modification. This will make things easier for
administrative purposes. An example of how a tow
AS1f0301
tractor's designator is derived can be seen in table 1-2.
Figure 1-3.--NC-8A/A-1 mobile electric power plant.
Table 1-2.--Equipment Type Designator For The A/S32A-31A
Tow Tractor
purpose is to provide ac and dc electrical power for
CODE
DESCRIPTION
servicing, starting, and maintenance of aircraft. Some
Aero/Support Equipment
are diesel engine powered, and some are electrically
A/
(externally) powered. Some of these are driven and
Ground Self-Propelled
S
some of them must be towed.
Mechanical
32
Personnel in the AS rating are required to become
Aircraft or Missile Support
familiar with and maintain, mobile electric power
A
plants.
The 31st piece of equipment in the 32A
-31
category to which a type designation has
NC-8A/A-1 Mobile Electric Power Plant
been assigned.
The first modification to the "-31" tractor
The NC-8A/A-1 (fig. 1-3) is a four-wheel,
A
self-propelled, rear-wheel-drive vehicle, powered by a
4-cylinder, two-stroke-cycle Detroit Diesel engine. It
Q1-32.
What does the 27 represent in A/M27T-5?
provides 115/200-volt, 3-phase, 400-Hz, 60-kVA ac
1.
Hydraulic
power, and 28-volt dc power at 500 amperes
2.
Electrohydraulic
continuous, 750 amperes intermittently. This unit is
3.
Pneumatic
used primarily at shore stations.
4.
Electrical
NC-10C Mobile Electric Power Plant
COMMONLY USED SUPPORT
The NC-10C (fig. 1-4) is a four-wheel,
EQUIPMENT
trailer-mounted, electrical generating system, powered
LEARNING OBJECTIVE: Identify the
by a 6-cylinder, two-stroke-cycle Detroit Diesel engine.
operating characteristics of various types of
commonly used support equipment.
As an Aviation Support Equipment Technician,
you will find many different types of support
equipment that you will have to maintain. This
equipment falls into four basic categories: electrical,
hydraulic, mechanical, and pneumatic. In the following
paragraphs, you will get only a basic description of
only a few items of the most commonly used support
equipment.
AS1f0302
MOBILE ELECTRIC POWER PLANTS (MEPP)
There are many types and models of mobile electric
power plants (MEPP) in use in naval aviation. Their
Figure 1-4.--NC-10C mobile electric power plant.
1-19
