Anti-tank

Question 1

What is the primer of the M72A6?

Answer 1

M29A1, alternatively the DM1204

Question 2

What is the igniter assembly of the M72A6 made of?

Answer 2

The primer and flash tube of black powder impregnated cotton

Question 3

Why can’t the M72A6 be fired indoors?

Answer 3

The Danger Back Blast Area (DBBA) of 70 m

Question 4

What is the main fill of the M72A6?

Answer 4

Octol (315 grams)

Question 5

What is the propellant used in the M72A6 rocket?

Answer 5

M7 Tubular Grain 122 grams

Question 6

Up to what angle does the graze element operate?

Answer 6

30 degrees against hard targets

Question 7

What are the 3 components of the M72A6 Warhead (Tactical Rocket Assembly)?

Answer 7

• Fin Group Rocket Motor
• M412A1 Fuze
• M72A6 Warhead Assembly

Question 8

What is the fuze type and operating modes?

Answer 8

Fuze M412A1, Point Initiating Base Detonating, with impact and backup graze settings.

Question 9

What is the penetration capability of the M72A6 warhead?

Answer 9

150mm of armour

Question 10

What are the ranges that the M72A6 be fired?

Answer 10

• Minimum – Training – 100m / Operationally – 25m
• Max effective – 220m (can engage stationary targets at 350m)
• Max range – 1400m

Question 11

When does the fuze arm after firing?

Answer 11

Approximately 12 m, based on time from setback (0.67 sec for escapement to wind down)

Question 12

What is the M72A6 designed to be used against?

Answer 12

Light Armoured Vehicles and Field Fortifications

Question 13

What is the propellant used in the 21mm Sub-Cal?

Answer 13

6 tubular sticks of M7 propellant (18 grams)

Question 14

What is the composition of the 21mm Sub-Cal tracer element?

Answer 14

0.55 gram black powder with RS37 and RS 57/37

Question 15

What are the components of the 21mm Sub-Cal igniter assembly?

Answer 15

What are the components of the igniter assembly?
• Primer Percussion DM 1204 (0.324 grams Sinoxid)
• Flash tube housing (Black powder 0.2 grams)
• Igniter Charge (Black powder 1.9 grams)

Question 16

how is the FFV551 fuze function (crystals?)

Answer 16

by the 5 piezo electric crystals that are used to convert mechanical energy into electrical energy located behind the distance tube.

Question 17

what is the FFV551 min and max effective range

Answer 17

150 min

700 max

Question 18

what are the standing, kneeling and crouching max number of fires for the for full cal Blast over pressure.

Answer 18

Standing - seven
kneeling - one
prone - Zero

safety sup etc included

Question 19

what are the cook off guidelines for FFV 551

Answer 19

1. max weapon temp of 115c
2. max of ten rounds fired in close sucsession
3. A maximum of twenty-five rounds can be fired at a rate of fire of six rounds per minute.
4. Rate of fire for prolonged firings is to be ‘considerably less than’ five rounds per minute.

Question 20

what explosives are in the FFV 551

Answer 20

1. warhead octol (hmx/tnt 70/30) 460g

2. booster tetryl 7.39g

Question 21

in candela what is the 545

Answer 21

650,000 for 30secs

Question 22

what is the arming distance for the 545

Answer 22

20 to 70m

Question 23

in meters how far does the illum go

Answer 23

400 - 500m diameter

Question 24

what propelled the 545

Answer 24

AKB 204 355g

Question 25

what is in the M72A6 explosive wise

Answer 25

Octol (HMX/TNT 70/30) 315g

booster Comp a5 - 5.6g