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Advancement Exam > guns > Flashcards

guns Flashcards

1
Q

what series ammunition does the M61a1/m61a2 use?

A

M50 and PGU Ammunition -20MM

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2
Q

what is the difference between the M61a1 and m61a2?

A

Weight

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3
Q

what aircraft does the M61a1/m61a2 go on?

A

F/A 18

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4
Q

the m61a1/m61a2 has how many barrels and who is it named after?

A

Six /Richard Jake Gatlen

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5
Q

how is the m61a1 driven and how is it controlled?

A

Electrically

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6
Q

what is the gun low and the gun high of the M61a1/m61a2?

A

4000Low/6000High

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7
Q

what does the guide bar do on the M61a1/m61a2?

A

It guides the rounds into and out of the extractor lip.

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8
Q

how many breech bolt assembly’s does the m61a1/m61a2 have?

A

Six

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9
Q

where is the lubricator assembly mounted on the m61a1/m61a2 and what does it do

A

attached
externally to the gun housing assembly. It is used to lubricate the bolt assemblies during gun operation.

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10
Q

What are the 2 cycles of fire for the m61a1/m61a2?

A

Firing and Clearing cycle

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11
Q

if viewed from the rear which direction does the m61a1/m61a2 go?

A

it revolves in a counterclockwise direction.

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12
Q

how many cycles of fire does the m61a1/m61a2 have and what are they?

A

Two Firing and Clearing

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13
Q

The clearing cycle starts when what is energized?

A

clearing solenoid is energized.

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14
Q

the entrance cover of the drum unit on the m61a1/m61a2 has how many steel ball bearings?

A

252

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15
Q

the exit cover of the drum unit on the m61a1/m61a2 contains what kind of switch?

A

last-round switch

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16
Q

what are the three chute assemblies of the m61a1/m61a2?

A

bypass feed and return chute

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17
Q

the bypass chute goes from what unit to what unit?

A

Entrance to Exit

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18
Q

the feed chute goes from where to where?

A

Exit to Adapter

19
Q

the return chute goes from
Where to where?

A

Transfer to Exit

20
Q

the gun gas purge system on the m61a1/m61a2 does what?

A

cools the barrels and purges gas from the compartment during gun firing operations.

21
Q

where on the f/a-18 does the m61a1/m61a2 go?

A

internally mounted in the nose of the aircraft on the centerline.

22
Q

how many rounds does the ammunition handling system on the m61a1/m61a2 hold?

A

578

23
Q

what two modes of fire does the m61a1/m61a2 have?

A

continuously computed impact point (CCIP) and manual (MAN)

24
Q

what are the two levels of maintenance on the m61a1/m61a2?

A

Organizational and Intermediate

25
Q

When the m61a1/m61a2 shoots over 120,000 rounds what level of maintenance does it go to?

A

Intermediate

26
Q

scheduled gun maintenance for the m61a1/m61a2 starts at how many rounds?

A

7,500rounds

27
Q

scheduled maintenance for the handling and drive system of the m61a1/m61a2 starts after how many rounds fired?

A

30,000 rounds

28
Q

what is the rate of fire for the gau-21?

A

950 to 1100 rounds per minute

29
Q

what kind of caliber of weapon is a gau-21 and what aircraft does it go on?

A

MH-60s and .50 Cal

30
Q

what is the barrel life of the gau-21?

A

10,000 rounds

31
Q

after how many rounds fired does the gau-21 go into depot level maintenance?

A

40,000

32
Q

the gau-16 is what kind of caliber of weapon and what aircraft is it used on?

A

50 caliber/H60

33
Q

what is the rate of fire for the gau-16?

A

750 to 850 rounds per minute

34
Q

what is the barrel life new of the gau-16?

A

5000 new

35
Q

after how many rounds fired is the Gus-16 required to go to depot level maintenance?

A

50,000 rounds

36
Q

how is the gau-17 powered?

A

externally-powered, 28VDC, six- barrel, air-cooled,

37
Q

what is the fixed rate of fire for the gau-17?

A

3,000 rounds per minute

38
Q

what kind of calibration of a weapon is the gauge-17 and what aircraft is it used on?

A

7.62mm and HH-60

39
Q

the m240 uses what calibration of weapon and what aircraft is it used on?

A

7.62 and MH-60

40
Q

what is the rate of fire for the m240d?

A

650 to 950 rounds per minute.

41
Q

what kind of cartridge does the m240d use?

A

7.62 mm North Atlantic Treaty Organization (NATO) cartridge

42
Q

what is the firing cycle for the M61a1/a2?

A
  1. Feeding.
  2. Chambering. 3. Locking.
  3. Firing
  4. Unlocking. 6. Extracting. 7. Ejecting.
43
Q

what does the muzzle barrel assembly do?

A

It restrains individual barrel movement during firing.

44
Q

how many rows of interrupted locking lugs hold the barrels together?

A

Three

Advancement Exam (1 decks)

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