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SMA > M240 Machine Gun > Flashcards

M240 Machine Gun Flashcards

1
Q

Characteristics of the M240

A

Air cooled, gas operated, fully automatic, fires from the open bolt position, fixed headspace, mounted externally.

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2
Q

What is the caliber of the M240?

A

7.62mm NATO

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3
Q

Do pilots have the ability to fire?

A

No

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4
Q

Rate of fire is . . .

A

variable and selected by three gas port regulator settings.

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5
Q

RPM of setting 1

A

750 Rounds per minute

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6
Q

RPM of setting 2

A

850 Rounds per minute

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7
Q

RPM of setting 3

A

950 Rounds per minute

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8
Q

Maximum range

A

3000 meters

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9
Q

Tracer burnout

A

750 meters

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10
Q

True/False the M240 is free pointing

A

True

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11
Q

Limitations of the M240

A

Limited in the azimuth, elevation, and depression

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12
Q

Advantages of the M240

A

Simplicity, standardization(among NATO forces), and superior reliability.

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13
Q

Disadvantages of the M240

A

Single barrel design

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14
Q

How many major components does the M240 have?

A

Eight

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15
Q

What are the major components of the M240?

A
  1. Barrel Assembly
  2. Buffer and spade grip assembly
  3. Driving Spring Rod Assembly
  4. Bolt and Operating Rod Assembly
  5. Cover Assembly
  6. Trigger Housing Assembly
  7. Feed Tray
  8. Receiver Assembly
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16
Q

Houses Cartridge for firing and directs projectile

A

Barrel Assembly

17
Q

Absorbs recoil for bolt and operating rod assembly at the end of recoil movement.

A

Buffer and spade grip assembly

18
Q

Provides energy for returning bolt and operating rod to the firing position

A

Driving Spring Rod Assembly

19
Q

Provides feeding, stripping, chambering, firing, extraction, and ejection of cartridges using the projectile propelling gases for power.

A

Bolt and Operating Rod Assembly

20
Q

Feed the linked belt into the gun, positions and hold the cartridge for, stripping, feeding, and chambering.

A

Cover Assembly

21
Q

Controls the firing of the machine gun.

A

Trigger Housing Assembly

22
Q

Serves as a guide for positioning cartridges to assist in chambering.

A

Feed Tray

23
Q

Serves as support for all major components

A

Receiver Assembly

24
Q

Controls of the M240

A
  1. Barrel locking latch
  2. Barrel Release
  3. Safety
  4. Cover Latches(2)
25
Q

Located on the front of the receiver assembly and is used to unlock the barrel when removing it and to keep the barrel attached to the receiver.

A

Barrel locking latch

26
Q

Used to remove the barrel, while depressing the Barrel Locking Latch; also serves as weapon carrying handle.

A

Barrel Release

27
Q

Consists of a cylindrical pin with a sear clearance cut which slides across the receiver to block the seat and prevent firing.
The ends of the pin are marked S(Safe) and F(Fire)

A

Safety

28
Q

Both are located at the aft end of the cover assembly.

A

Cover Latches(2)

SMA (30 decks)

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