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march 2016 exam > Aircraft Guns > Flashcards

Aircraft Guns Flashcards

1
Q

At what prescribed rate can an M61A1/A2 gun fire M59 series ammunition

A

4,000 to 7,200 rpm

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2
Q

What components are the primary parts of an M61A1/A2 automatic gun

A

Barrels , rotor assembly , and housing assembly

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3
Q

What means are used to secure the gun barrels to the stub rotor of an M61A1/A2 automatic gun

A

Interrupted locking lugs

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4
Q

On an M61A1/A2 gun , what component picks up a round as it enters the gun

A

Breech-bolt assembly

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5
Q

On an M61A1/A2 gun , a full firing cycle requires what prescribed number of actions

A

Seven

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6
Q

What are the two distinct cycles of an M61A1/A2 automatic gun operation

A

Firing and clearing

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7
Q

What components of an M61A1/A2 automatic gun ejects the empty case from the gun

A

The extractor lip

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8
Q

On an M61A1/A2 automatic gun , what sequence of actions is performed by the breech-bolt assembly during one full firing cycle

A

Feed , chamber , lock and fire , unlock , extract , and eject

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9
Q

A drum unit assembly consists of the drum unit and what other major parts

A

Entrance cover , scoop disk , and exit cover

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10
Q

The mechanical drive unit in an F/A-18 aircraft had what total number of output shafts

A

One

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11
Q

A gun has purge system is used for what purpose

A

Cool the gun barrels and purge gas from the gun compartment

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12
Q

The air required to operate the gun gas purge system in an F/A-18 aircraft is provided by what air source

A

Engine bleed air and the ram air scavenge door

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13
Q

In an F/A-18 aircraft, the M61A1/A2 automatic gun system can be operated in what computer mode

A

A/A , A/G , or CCIP

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14
Q

In an F/A-18 aircraft , what component is used to manually clear the M61A1/A2 automatic gun

A

Clearing section clamp

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15
Q

An M61A1/A2 automatic gun must be sent to a depot-level maintenance activity under which of the following conditions

A

All answers are correct
A. When major repair is required
B. When an alteration is authorized
C. When 120,000 rounds have been expended

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16
Q

Which of the following gun maintenance procedures should be accomplished during scheduled maintenance

A

All answers are correct
A. Lubrication
B. Normal disassembly and parts replacement
C. A functional check of the components based on the round interval

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17
Q

Scheduled maintenance for an M61A1/A2 automatic gun handling and drive system should be performed after what maximum number of rounds has been fired

A

30,000 rounds

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18
Q

What is the rapid rate of fire for the GAU-21

A

950 to 1100 rounds per minute

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19
Q

What is the maximum air-to-ground range of the GAU-21

A

6,500 meters

20
Q

How is the GAU-16 cooled after firing

A

By air

21
Q

What is the performance firing rate of the GAU-16

A

750 to 850 rounds per minute

22
Q

The GAU-17 major gun assemblies include the barrels and barrel clamp , housing , rotor , and what assembly

A

Clutch

23
Q

What is the sustained firing rate of the M240D

A

100 rounds per minute

24
Q

What weapon can be easily removed from the helicopter and used for ground defense if needed

A

M240D

25
Q

How is an M61A1/A2 automatic gun is (1) driven and (2) controlled

A

(1)hydraulically (2) electrically

26
Q

the M61A1 and M61A2 is a six barrel , rotary action , automatic gun based on the machine gun design of whom

A

Richard J. Gatling

27
Q

the M61A1/2 automatic gun is hydraulically driven , electrically controlled , and can fire M50 and PGU series ammunition at how many rounds per minute

A

4,000 to 6,000

28
Q

the operation of the M61A1/2 gun is divided into what two distinct cycles

A

firing and clearing

29
Q

the ammunition handling systems holds a maximum of how many rounds of ammunition in a he F/A-18 M61A1/2 gun system

A

578

30
Q

the maintenance and testing responsibilities of M61a[/2 gun installations are distributed evenly beet wren the organizational and what other levels of maintenance

A

intermediate

31
Q

what type of maintenance includes servicing (loading and unloading) , preflight , post flight , minor periodic maintenance, malfunction troubleshooting , and removal and installation of components on the aircraft

A

organizational

32
Q

what maintenance responsibilities are tasks associated with repair or replacement of unserviceable or damages assemblies , components , or parts of the gun installation that do not require the special maintenance facilities of an overhaul depot

A

intermediate

33
Q

when the M61A1/2 gun reaches a round interval of how many rounds fired or requires major repair or alteration , it is sent to a depot level maintenance activity ?

A

120,000

34
Q

scheduled M61A1/2 gun maintenance begins at how many rounds

A

7,500

35
Q

the GAU-21 is capable of firing at a rapid rate of how many rounds per minute

A

950 to 1100

36
Q

the GAU-21 has a barrel life of how many rounds

A

10,000

37
Q

the GAU-21 has a depot maintenance cycle of how many rounds

A

40,000

38
Q

the GAU-21 has a burst limit of how many rounds

A

600

39
Q

what is the muzzle velocity if the GAU-21

A

2,887 fps

40
Q

the GAU-21 weapon system is capable of being mounted on what aircraft

A

MH-60

41
Q

the GAU-16 had a depot maintenance cycle of how many rounds

A

50,000

42
Q

what is the performance rate of fire for the GAU-16

A

750 to 850 rounds per minute

43
Q

what is the muzzle velocity in fps of the GAU-17

A

2,850

44
Q

what is the rate of fire of the GAU-17

A

3,000 rounds per minute

45
Q

the M240D is an air cooled , has operated , automatic machine gun and fired the standard 7.62 mm North Atlantic Treaty Organization (NATO) cartridge from the open bolt position at firing rates of how many rounds per minute

A

650-950

46
Q

what is the maximum range of the M240D

A

3,725

47
Q

what is the maximum effective range of the M240D

A

1,200 meters

march 2016 exam (30 decks)

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