to the bomb rack, attach the pull ring to an arming wire,
which is attached to the bomb rack. When the marker
is released from the bomb rack, the arming wire retains
the pull ring and removes the foil strip covering the
batterys cavity. When submerged, the Mk 72 Mod 1
battery is activated by seawater. Current from the
battery initiates a Mk 13 electric squib, which ignites the
starter composition of the first pyrotechnic candle. The
composition ignites the starter pellet, which, in turn,
ignites the first candle. When the first candle is nearly
burned out, its heat ignites the transfer time fuze which
carries ignition to the second candle starter composition.
This starter composition initiates the second
REVIEW NUMBER 3
What is the burn time of the Mk 25 Mods 2 and
3 marine location markers?
The Mk 25 Mods 2 and 3 marine location
markers function in the same way. Describe the
difference between them.
What is the purpose of the heavy aluminum base
assembly crimped to the outer tube?
List the methods used to launch the Mk 25 and
Mods marine location markers.
What adapter kit is used when the Mk 25 and
Mods marine location markers are launched
from sonobuoy launchers?
List the uses of the Mk 58 Mod 1 marine location
The Mk 58 Mod 1 marker produces a yellow
flame and white smoke for what length of time?
Under normal conditions, the flame and/or
smoke of the Mk 58 Mod 1 marker is visible for
List the methods used to launch the Mk 58 Mod
1 marine marker
What seawater-activated battery is used with the
Mk 58 Mod 1 marker?
LEARNING OBJECTIVE: Identify the
purpose and use of decoy devices.
Decoy flares are dispensed from launching
mechanisms on aircraft. They are fired during evasion
tactics when threatened by enemy heat-seeking
The Mk 46 Mods 1, 1A, and 1C decoy flares are
loaded into and launched from either the AN/ALE-39
dispensing set or the AN/ALE-37A chaff dispenser. The
decoy flare (fig. 4-12) consists of a cylindrical
aluminum case about 5.8 inches long and 1.42 inches in
diameter. The base end of the flare is flanged to a
maximum diameter of 1.495 inches to fit the
counterbore in the chamber of the dispenser. The end
Figure 4-12.Mk 46 Mod 1, MJU-8/B, A/B, MJU-22/B, SM 875/ALE and chaff package.