239.340
Figure 5-2.—Operation of the signaling mirror.
reflects the equivalent of 8 million candlepower.
Flashes from the mirror have been seen from a
distance of 40 miles. A smaller mirror, measuring
2 by 3 inches, is also used in some kits.
Figure 5-2 shows the operation of the signaling
mirror. Past experience indicates that personnel
may have difficulty using the mirror in a bobbing
raft at sea. Signaling practice with the mirror
should be encouraged as part of the training
program for flight crews. Such practice reduces
the difficulty in case of emergencies. Before using
the mirror, read the instructions printed on its
back.
MK 79, MOD 0 ILLUMINATION
SIGNAL KIT
The Mk 79 signal kit is supplied with one
pencil-type launcher (Mk 31), seven Mk 80 screw-
in cartridges, and a bandolier for storing the flares
until use. Protective caps should be used over the
primers of the cartridges when not using the
bandolier.
239.400
Figure 5-3.—Mk 79 Mod 0 illumination signal kit.
Each cartridge flare has a minimum duration
of 4 1/2 seconds and can be launched up to 250
feet. When the launcher is stored in the survival
vest, it should be in the COCKED position and
empty (fig. 5-3). Refer to NAVAIR
proper handling and storage of the
MK 13, MOD 0 SIGNAL FLARE
The Mk 13, Mod 0 signal flare is
attract the attention of SAR aircraft
11-15-7 for
signal kit.
intended to
and to give
them drift direction. To avoid being burned by
sparks, the ignited Mk 13, Mod 0 signal must be
held at arms length and no more than shoulder
high. If the Mk 13, Mod 0 signal is being used
at sea, hold it over the side of the life raft to
prevent damage to the life raft from hot residue.
The Mk 13, Mod 0 signal may be put out by
dousing in water or snuffing in sand. Refer to
NAVAIR 11-15-7 for precautions, handling, and
storage procedures.
The Mk 13, Mod 0 consists of a metal cylinder
closed at each end. There is a tear friction tape
igniter on a clip at each end. One end contains
a red flare for nighttime use; the opposite end
houses an orange smoke signal for daytime use.
Each end of the signal burns approximately 20
seconds. The nighttime end of the flare has
protrusions that you can feel in the dark. On the
outside of the Mk 13, Mod 0 flare are operating
instructions and a lot number (fig. 5-4). The lot
number should be checked each time the flare is
inspected to ensure that the flare is still
serviceable. A list of lot numbers that are not
serviceable can be found in current aircrew
5-2
