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Petty officer chpt 2
Terms in this set (33)
List the two rockets currently used by the Navy.
Mighty Mouse and zuni
If a rocket does not fire when the firing circuit is energized, it is known as a _____________.
What is meant by the rockets thrust?
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 _______, and the escaping gases provide about __________ to move the container forward.
70 percent of the force, and 30 percent of the force
List the three components of a rocket.
Motor, warhead, and fuze
List the components of rocket motors.
motor tube, propellant, inhibitors, stabilizing rod, igniter, and nozzle and fin assembly.
What is the purpose of the inhibitor?
Inhibitors restrict or control burning on the propellant surface
What rocket component is salt coated to prevent unstable burning of the rocket propellant?
The stabilizing rod
When should you remove the fin retainer band on a Mk 71 rocket motor?
when the rocket is installed into the launcher tube.
What color are high-explosive rocket war- heads?
High-explosive warheads are painted olive drab
What type of targets are HE-FRAG warheads used against?
Personnel and light material targets, such as trucks and parked cars
The AT/APERS warhead is an effective combination of what other warheads?
The HE-FRAG and HEAT warheads
What warhead contains a large number of small, arrow-shaped projectiles?
The flechette warhead
Smoke warheads produce a volume of heavy smoke for ___________.
What warhead is used to illuminate tactical operations?
illuminate tactical operations.
When classified by their mode of operation, fuzes are classified as ____________.
as impact-firing, mechanical-time, acceleration and deceleration, or proximity
At what point does the impact-firing fuze function?
the rocket strikes the target that offers enough resistance to cause actuation of the parts.
List the two types of impact firing fuzes
Nose detonating and base detonating
At what point does the mechanical time fuze initiate the firing train?
Upon arming, the mechanical timer starts, and after a set time, the mechanical time fuze initiates the firing train
In acceleration-deceleration fuzes, what force causes the fuze to function?
In acceleration-deceleration fuzes, deceleration causes the fuze to function.
Name the fuze that senses, usually by electronic means, the presence and distance of a target.
Proximity fuzes sense, usually by electronic means, the presence and distance of a target
What is the usual configuration of the 2.75-inch airborne rocket?
The 2.75-inch airborne rocket is used as an air-to-ground weapon against most targets.
Aboard ship, who assembles rocket com- ponents for current operations
Aboard ship, weapons department ordnance- men assemble rocket components according to ships and load plans, and deliver them to the squadron ordnancemen who load them onto the aircraft.
Name the section of the launcher that houses or supports all other components of the launcher.
The center section of the launcher that houses or supports all other components of the launcher.
RF barriers are used on 2.75-inch rocket pods to _______________________.
to prevent entry of electromagnetic radiation into the igniter circuit.
List the components that are common to rocket launcher packages.
s: fairings, breaker switch, mode selector switch, and intervalometer.
What device, found on all rocket launchers, prevents loaded rockets from firing?
When is the detent pin in the rocket launcher safe/arm device removed?
The detent pin in the rocket launcher safe/arm device is removed immediately before takeoff
What is the weight, depending on configuration, of a fully loaded LAU-10 rocket launcher?
approximately 500 to 550 pounds.
If you are working around rockets or loaded pods, the preferred position is __________.
is at the sides of the rocket or pod. Never work in front or behind them.
Smoking is not permitted within what minimum range of rocket ammunition?
200 feet of rocket ammunition.
What is the maximum distance that a rocket motor can be dropped and still be used as a serviceable motor?
2 feet and still be used as a serviceable motor.
What minimum distance must be maintained between gas turbine exhaust paths and rockets?
A minimum distance of 10 feet
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