Electronic Module Switch Functions
Programs the number of salvos: 1, 2, 4, 8, or C (continuous). A salvo is the same as one
Programs the time in seconds between salvos: 1, 2, 3, 4, 5, 8, or R (random timing, e.g. 2, 5,
3, 4, 3, 2).
Programs the number of chaff cartridges that are fired in one burst: 1, 2, 3, 4, 6, or 8.
Programs the time interval in tenths of a second between individual chaff cartridge firings
within a burst: 0.1, 0.2, 0.3, or 0.4.
4.36.6 Kit Safety Procedures.
The following special
safety procedures shall be followed:
Avoid exposure to high concentrations
of chaff; this can cause temporary irrita-
tion to eyes and throat.
a. Chaff and impulse cartridges.
Chaff and im-
pulse cartridges shall be kept away from all fires and ex-
cessively high temperatures.
b. Impulse cartridges.
Impulse cartridges must be
handled with extreme care. Each cartridge generates ex-
tremely high gas pressure and temperature when fired.
c. Safety pin.
The safety pin shall be installed in the
remote safety switch whenever the helicopter is parked.
Remove the safety pin prior to takeoff.
4.36.7 Kit Operation.
Operation is totally independent of air-
craft ARM/SAFE power.
When power is removed from the dispenser
assembly, the firing order resets to position
No. 1 in the payload module. If payload
module is partially expended, the payload
module may be rotated 180 prior to power
up to ensure an unexpended chamber is in
the No. 1 position.
1. Chaff counter Set for number of chaff car-
tridges in payload module.
2. Mode switch MAN.
Mode switch should always be in the
MAN position prior to setting the ARM/
SAFE switch to ARM to prevent immedi-
ate salvo of chaff.
3. ARM/SAFE switch ARM; ARM indicator light
4. Mode switch PGRM if desired or required.
5. Cyclic WAS C (6:00 position) as desired to fire
6. Stopping Procedure ARM/SAFE switch
4.37 RADAR WARNING SYSTEM AN/APR-39(V)1.
The radar warning (RW) system provides visual and aural
warnings of radar reception in bands generally associated
with hostile fire control radar. Each radial strobe displayed
on the RW display represents a line of bearing to an active
radar transmission. When a radar signal represents a
threat an audio signal is sent to the RW control panel and
an audio alarm is sounded in the pilots helmet. The audio
alarm frequency represents the relative strength of the in-
tercepted radar signals. Also during radar signal threats,
the RW display missile alert (MA) lamp is illuminated. The
MA lamp flashes to represent the relative strength of the
intercepted radar signals. The operating controls and indi-
cators of the RW control panel (fig 4-20) are described in