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at 0013 > ARH/Blackhawk > Flashcards

ARH/Blackhawk Flashcards

1
Q

What is the weapon system that fires the 30mm carts on the ARH tiger?

A

GIAT 30M781

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2
Q

How many squibs are on the Cart EOFE MT20?

A

2 independent squibs

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3
Q

What are the common targets of the Cart 30mm OSPEI (SAPHEI) F7671?

A

Helicopters
Slow Moving Aircraft
Non Armoured and light armoured vehicles

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4
Q

Why are there 2 independent squibs on the Cart EOFE MT20?

A

If one fails the other is a failsafe.
One squib has enough power to punch the Brass slug into the frangible sealing disc.

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5
Q

what is the slug penetrator of the Cart EOFE MT20 made of?

A

Brass

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6
Q

What is the safe arm distance of the Cart 30mm OSPEI (SAPHEI) F7671?

A

15m

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7
Q

What is the explosive fill of the Cart 30mm OSPEI (SAPHEI) F7671?

A

16g of HEXAL (RDX, Aluminium and wax)

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8
Q
A
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9
Q

How is the Cartridge Impulse ARD 863-1A1W initiated and what is it used for?

A

Elec initiated
Used to provide gas pressure to eject stores and release equipment from aircraft.
The stores may include bombs, fuel tanks, launchers, racks, pylons and other explosive ordnance.

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10
Q
A

Cart 30mm OSPEI F7671 (SAPHEI)

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11
Q
A

CARTRIDGE 30 MM OXAS (TP) F2271

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12
Q

What is the fuze attached to the Cart 30mm OSPEI (SAPHEI) F7671?

A

MR3005

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13
Q

What are the Major components of the FZ BD MR3005

A

Fuze Base
Fuze Body
Rotor Assembly
Firing Pin Assembly
Priming Relay

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14
Q

What is the proj 30mm OXAS F2271 (TP) made of?

A

Steel body filled with polystyrene

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14
Q

What is the Cartridge Impulse Mk 44 Mod 0 (cable cutter) designed to do and what is its fill?

A

Used to actuate Helicopter hoist cable cutters.
fill: 838AS102 (Smokeless Powder) 125 mg

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15
Q

What is the muzzle velocity of the 30mm OSPEI F7671 (SAPHEI)?

A

760 +- 10 m/s

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16
Q

What is the armour penetration of the 30mm OSPEI F7671 (SAPHEI)?

A

50% perforation of a 1200MPa treated armour plate 20 mm thick at 800 metres

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17
Q

What is the primer used in the cart case for 30mm ammunition?

A

M650 Elec primer

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18
Q

What is the driving band material for the 30mm SAPHEI?

A

Sintered steel

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19
Q

What is the projectile material for the 30mm SAPHEI?

A

Heat treated alloy

20
Q

How long does the Flare Countermeasure Infra-red DSTL 22 burn for?

A

5.0 sec max

21
Q

What is the mass of the 30mm SAPHEI round and projectile?

A

Round
490 grams (approx without link)
560 grams (approx with link)

Proj
275 ± 5 grams

22
Q

What is the propellant type and NEQ in the RKT MTR 2.75 Inch FZ90?

A

3.51kg of SD-1171 double based

23
Q

What is the propellant shape in the RKT MTR 2.75 Inch FZ90?

A

Extruded cylindrical rod with 8 point star shaped centre hole

24
Q

What is the link used in the 30mm SAPHEI?

A

F51

25
Q

How does the Flare Countermeasure Infra-red DSTL 22 eject and how is inertia increased?

A

out of the forward end of the cart case.
weighted nose to increase inertia

26
Q
A
27
Q
A
28
Q

What is the burn time in the RKT MTR 2.75 Inch FZ90?

A

1.05 - 1.2s

29
Q
A
30
Q

What is the max effective range of the RKT MTR 2.75 Inch FZ90?

A

5km (Direct)
9.18km (Indirect)

31
Q

What is the cart case material for the 30mm SAPHEI?

A

Steel with high temperature polymerised varnish coating

32
Q

What is the round length of the 30mm SAPHEI?

A

200mm (max)

33
Q

What is the self destruct time for the 30mm SAPHEI?

A

6-16 seconds

34
Q

What causes the SAPHEI to SD?

A

Spin decay allows the centrifugal balls to recess back into the ball holder releasing the firing pin

35
Q

What is the propellent used in the 30mm cart cases?

A

Powder B19T98(0.4)C, single base, stabilised with diphenylamine(DPA)

36
Q

What is the fuze attached to the Warhead 2.75 Inch HEGP FZ71?

A

Mk 352 Mod FZ5 w/ Booster

37
Q

What is the body of the Warhead 2.75 Inch Flash FZ 181 MOD 2 made of?

A

Machined forged steel billet

38
Q

What is the fill for the Warhead 2.75 Inch Flash FZ 181?

A

200 grams of a pyrotechnic composition

39
Q

What is the material and fill of the 30mm TP projectile?

A

Steel
Polystyrene mixture

40
Q

How bright is the light intensity and the smoke duration for the Warhead 2.75 Inch Flash FZ 181 MOD 2?

A

Up to 10 million candella
10 milliseconds (approx)

41
Q
A

WARHEAD 2.75in HEGP FZ 71

42
Q

What is the main fill in the Warhead 2.75 Inch HEGP FZ71?

A

1.05kg of Comp B

43
Q
A

Warhead 2.75 INCH Practice FZ 120

44
Q
A

ROCKET MOTOR 2.75 INCH (FZ90)

45
Q

What is the NOM of the 2.75in flash warhead?

A

WARHEAD 2.75 INCH FLASH FZ 181

46
Q
A
47
Q
A

at 0013 (21 decks)

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