REVIEW NUMBER 2 ANSWERS
A1.
The LUU-2B/B aircraft parachute flare
weighs about 30 pounds.
A2.
The components of the LUU-2B/B flare are
the
mechanical
timer
assembly,
the
out-of-line igniter, the parachute suspension
system, and the case assembly with tamped
candle.
A3.
The minimum drop distance setting of the
LUU-2B/B flare is 250 feet.
A4.
The diameter of the parachute suspension
system is 18 feet.
A5.
At launch, the timer knob is pulled off of the
timer by approximately 30 pounds of force on
the lanyard.
Launching Methods
Currently, there are two methods of launching the
Mk 25 marker—by hand or by sonobuoy launcher. To
launch by hand, rotate the base arming plate clockwise
to the armed position. Push the base plugs into the
battery cavity, located in the marker base, and throw the
marker into the water. It functions as previously
discussed.
If the base plugs (one or both) of a marker are
disturbed so the watertight integrity of the battery
cavity is compromised and the marker is not launched
immediately, a marine marker adapter kit (Mk 34 Mod
0) must be installed. The Mk 34 Mod 0 adapter kit is
also used when the marker is launched from sonobuoy
launchers. The adapter kit fits over the base end of the
marker, and, when properly installed, seals the battery
cavity. The adapter kit is installed by rotating the
marker base arming plate to the armed position and
pushing the base plugs into the battery cavity. Remove
the black G-ring and install the adapter kit around the
marker base so the seal plugs on the leaf-spring ends
cover the holes into the battery cavity. Insert the U-pin
to hold the adapter in place. To hand-launch a marker
with a Mk 34 adapter kit installed, remove the U-pin
and the adapter and throw the marker into the water.
Before launching the Mk 25 marker from sonobuoy
launchers, you should install a Mk 34 adapter kit (fig.
4-8) on the marker. The adapter kit provides a safe
4-9
Figure 4-8.—Spacer assembly and sonobuoy launch container.
