used against personnel and light material targets, such
as trucks and parked aircraft. Upon detonation, a large
quantity of metal fragments accelerate to a high velocity.
This action damages the target. The types of HE-FRAG
warheads currently in use are listed in table 2-1.
HEAT WARHEADS.— High-explosive antitank
(HEAT) warheads (fig. 2-13) are used against armored
targets, such as tanks, bunkers, and armored vehicles.
The warhead contains a shaped-charge. When
detonated, it produces a high-energy jet that penetrates
armored targets. The only HEAT warhead currently in
use is the Mk 5 Mod 0.
AT/APERS WARHEAD.— The high-explosive
antitank/antipersonnel (AT/APERS) warhead (fig.
2-14) combines the effectiveness of the HE-FRAG and
HEAT warheads. The explosive shaped-charge in the
AT/APERS warhead detonates at the aft end, producing
A1.
A2.
A3.
A4.
A5.
A6.
A7.
A8.
A9.
A10.
A11.
A12.
Table 2-1.—Service Warheads
REVIEW NUMBER 1 ANSWERS TO QUESTIONS Q1. THROUGH Q12.
The two rockets currently used by the Navy are the 2.75-inch Mighty Mouse and
the 5.0-inch Zuni.
If a rocket does not fire when the firing circuit is energized, it is known as a misfire.
Thrust is the force exerted by the gases produced by the burning of the rocket
motor propellant.
In rocket propulsion, the Venturi nozzle decreases turbulence of escaping gases
and increases thrust. Gas pressure inside the container provides about 70% of
the force, and the escaping gases provide about 30% of the force to move the
container forward.
The three components of a rocket are the motor, warhead, and fuze.
The components of rocket motors include the motor tube, propellant, inhibitors,
stabilizing rod, igniter and nozzle and fin assembly.
The inhibitor restricts or controls burning on the propellant.
The stabilizing rod is salt coated to prevent unstable burning of the rocket
propellant.
Rockets are most susceptible to radio-frequency (RF) energy when they aren't
installed in the launcher,
The scarfed nozzle installed in the Mk 40 rocket motor
The Mk 16 rocket motor has a modified igniter nozzle, and fin assembly.
You should remove the fin retainer band on the Mk 71 rocket motor when the rocket
is installed into the launcher tube.
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