TM 55-1520-240-23-7
9-60
LIGHTING SYSTEMS
9-60
One warning and 14 lighting systems are covered in
this section. The emergency exits lights are covered in
Chapter 17. The lighting systems are as follows:
1.
Navigation (position) lights
2.
Landing lights
3.
Formation lights
4.
Anticollision lights
5.
Transmission oil level check light
6.
Pilot’s instrument panel lights
7.
Center instrument panel lights
8.
Copilot’s instrument panel lights
9.
Overhead panel lights
10. Console lights
11. Secondary cockpit lights
12. Cockpit dome and utility lights
13. Cabin and ramp lights
14. Troop warning system
NAVIGATION (POSITION) LIGHT SYSTEM WITHOUT
17
Description
The navigation (position) lighting system includes three
position lights, dimming resistors, a switch in the cockpit
overhead panel, and on aircraft with 67 , a remote
switch in the aft cabin. The red position light is on the
left pod at sta. 242. The green position light is on the
right pod at sta. 242. The white position light is on the
tail at sta. 627. Dc power is connected to the lights
through the POSITION LIGHTS switch on the overhead
panel which also controls their brightness.
Operation
1.
Power for the position lights comes from the 28
volt No. 2 dc bus. When POS LIGHTING circuit
breaker is closed, 28 vdc is applied to terminals
of POSITION LIGHTS switch S1.
2.
When the switch is at BRT, 28 vdc is applied
directly to the three position lights. When the
switch is at DIM, 28 vdc is applied through
dimming resistor R1 to the side position lights
and through dimming resistor R2 to the tail
position light.
3.
On aircraft with 67 , setting the remote AFT POS
LIGHT switch at sta. 534 to OFF, removes power
from the aft or tail position light. The AFT POS
LIGHT switch shall be normally kept in the ON
position.
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