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Fwd Firing Ordnance1
Rockets/Guns
| Question | Answer |
|---|---|
| LIST THE 3 COMPONENTS OF A ROCKET? | MOTOR, WARHEAD, FUZE |
| WHAT IS THE PURPOSE OF THE IGNITER? | HEATS THE PROPELLANT GRAIN TO IGNITION TEMPERATURE. |
| WHAT CONTROLS/RESTRICTS THE BURNING SPEED OF A PROPELLANT IN A ROCKET MOTOR? | INHIBITOR |
| DEFINE THRUST | FORCE EXERTED BY GASES PRODUCED BY THE BURNING OF THE ROCKET MOTOR PROPELLANT. |
| WHAT IS THE PURPOSE OF THE INHIBITOR IN A ROCKET MOTOR? | RESRICT OR CONTROL BURNING ON THE PROPELLANT |
| WHAT MAY BE THE RESULT IF A ROCKET MOTOR IS DROPPED AND THE PROPELLANT GRAIN IS CRACKED? | THE CRACK WILL INCREASE THE BURNING SURFACE AND COULD CAUSE THE MOTOR TO EXPLODE FROM EXCESSIVE PRESSURE |
| WHAT EXPLOSIVE FILLER IS USED IN HIGH EXPLOSIVE ROCKET WARHEADS? | COMP B |
| WHEN LOCATED IN THE NOSE OF THE WARHEAD, IMPACT FIRING FUZES ARE DEFINED BY WHAT TERM? | POINT DETONATING |
| WHAT DISTANCE MAY A ROCKET WARHEAD AND FUZE BE DROPPED BEFORE IT CANNOT BE USED? | 5 FT |
| Rockets are propelled by what means? | The expulsion of gases |
| What type of HE-FRAG warhead is used with the 5.0 in rocket? | MK 63 MOD 0 |
| What term defines a safety feature designed into a fuze with a gear timing device? | Setback |
| Inhibitors are used on what areas of the propellant grain? | Aft end, forward end, and outer diametrical surface |
| If an inhibitor was NOT used on a rocket motors w/propellant grain, what would occur? | An increase burning rate |
| Inhibitors cause the propellant grain to burn in what direction? | Center outward and forward to aft |
| What rocket component prevents an unstable bruning of the propellant grain? | Stabilizing rod |
| What type of rocket fuze has an electronic package in the forward end? | Proximity fuze |
| What are the 2 rockets currently in use? | 2.75 (Mighty Mouse)/ 5.0 (Zuni) |
| What type of propellant grain is used in rocket motors? | Internal burning, star perforation, double-based solid propellant |
| How are rocket warheads 2.75/5.0 further classified? | High explosive, flechette, smoke, flare, practice |
| What warhead is used against personnel and light material targets? | HE-Fragmentation (HE-Frag) |
| What is the 2.75/5.0 HE-Frag Warhead? | 2.75: M151/MK 146 5.0: MK 63 |
| What is the only Antitank/Anti-Personel warhead currently in use? | 5.0: MK 32 |
| What is a compromise between armor-piercing and the fragmentation designs? | General purpose |
| What is the only 5.0 GP Warhead currently in use? | MK 24 |
| What warhead is used against personnel and light armored targerts? | Flechette |
| What is the designation for the 2.75 Flechette warhead? | WDU-4A/A |
| What warhead is used to provide a volume of heavy smoke for target marking? | Smoke Warhead |
| What is the designation for the 2.75/5.0 Smoke Warhead? | 2.75: M156/MK62 5.0: MK 34 |
| What warhead is used to illuminate tactical ops? | Flare warheads |
| What 2.75 flare warhead is currently in use? | M257 illumination/ M278 IR Flare |
| What 2.75/5.0 Practice warhead is currently in use? | 2.75: WTU-1/B 5.0: MK 6 Mod 7/MK32/WTU-11/B |
| How are rocket fuzes classified? | By their location in the warhead |
| What are the two classification of rocket fuzes? | Nose/ Base |
| When located in the nose of the warhead, impact firing fuzes are known as what? | Point-Detonating (PD) |
| When located in the base of the warhead,impact firing fuzes are known as what? | Base-Detonating |
| What is the only mechanical time rocket fuze currently in use? Where is it installed? | MK 193/ MK33 Flare warhead |
| T or F. A rocket motor can still be used if dropped and any portion impacts a hard surface. | False |
| Give a basic description of the M61A1/A2? | 6 barrel, rotary-action automatic gun |
| What are the major components of the M61A1/A2 gun? | Barrels, Housing Assy, Rotor Assy |
| The M61A1/A2 gun is __ driven and __ controlled. | Hydraulically/electrically |
| The M61A1/A2 gun has a pilot selectable firing rate of __ low and __ high. | 4,000/6,000 |
| What series of ammo is used in the M61A1/A2? | MK50/PGU |
| What restrains the individual barrel movement during firing? | Muzzle Clamp Assy |
| What is the purpose of the clearing sector solenoid? | Controls movement of the clearing sector assy |
| What component guides the rounds through the action of the gun? | Breech bolt assy |
| How many breech bolt assy's are there? | 6 |
| What engages the rim of the round throughout the firing cycle? | Extractor lip |
| What guides the rounds in and out of the extractor lip? | Guide bar |
| When does the firing cycle begin? | When power is applied to the firing contact assy |
| What is the full cycle for the M61A1/A2? | Feed/Chamber/Lock/Fire/Unlock/Extract/Eject |
| When does the clearing cycle start? | When the clearing solenoid is energized |
| The ammo handling system in the F/A-18 can hold a max of how many rounds? | 578 |
| At what round interval are the breech bolt assy's changed? | 15,000 rnds |
| What occurs after a gun reaches a round interval of 120,000? | it is sent to depot |
| The GAU-21 is capable of firing at a rapid rate of __ to ___r.p.m | 950/1100 |
| How many major assy's does the GAU-21 have? | 8 |
| What A/C is the GAU-21 compatible with? | MH-60 can mount 1 or 2 |
| Give a basic description of the GAU-17/A. | externally powered, 6 barrel, air cooled |
| What is the firing rate of the GAU-17/A? | 3,000R.P.M |
Created by:
zabi
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