ac guns

Question 1

M16A1 (GUN LOW)

Answer 1

4000 rpm

Question 2

M16A1 (GUN HIGH)

Answer 2

6000 rpm

Question 3

WHAT AMMUNITION DOES THE M16A1 USE?

Answer 3

20MM

Question 4

primary parts of M16A1

Answer 4

barrels, housing assembly, and rotor assembly

Question 5

Purpose of Muzzle Clamp Assembly (M16A1)

Answer 5

restrains individual barrel

movement during firing

Question 6

how many barrels does the M16A1 have?

Answer 6

6 six rifled barrels

Question 7

Firing Contact Assembly (M16A1)

Answer 7

provides path for current to reach breech-bolt assembly

Question 8

Purpose of Clearing Solenoid Assembly (M16A1)

Answer 8

controls the movement of the clearing sector assembly.

Question 9

Purpose of Guide Bar (M16A1)

Answer 9

guides the rounds into and out of the extractor lip

Question 10

Purpose of Breech-Bolt Assembly (M16A1)

Answer 10

picks up a round as it enters the gun

Question 11

what does the rotor assembly consists of?(M16A1)

Answer 11

rotor drive gear, bolt head lock, center track, removable track spacers, removable tracks, rotor gear

Question 12

what is the rotor assembly driven by? (M16A1)

Answer 12

hyds

Question 13

what does the Rear Housing Assembly provide? (M16A1)

Answer 13

provides the main cam path that controls the

movement of the breech-bolt assemblies

Question 14

where is the Lubricator Assembly located? (M16A1)

Answer 14

externally to the gun housing assembly

Question 15

what direction does the M16A1 barrels revolve?

Answer 15

counter clockwise

Question 16

when does the clearing cycle start?

Answer 16

when the clearing solenoid is energized

Question 17

The M61A1/A2 automatic gun is driven by what means?

Answer 17

hydraulically driven

Question 18

The M61A1/A2 automatic gun is controlled by what means?

Answer 18

electrically controlled

Question 19

At what prescribed rate of rounds per minute does the M61A1/A2 gun fire M50 series
ammunition?

Answer 19

4000- 6000 rpm

Question 20

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

Answer 20

Barrels, housing assembly, and rotor assembly

Question 21

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

Answer 21

interrupted locking lugs

Question 22

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

Answer 22

Breech-bolt assembly

Question 23

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

Answer 23

Seven

Question 24

Which of the following two cycles describe the M61A1/A2 automatic gun operation?

Answer 24

Firing and clearing

Question 25

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

Answer 25

The extractor lip

Question 26

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

Answer 26

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

Question 27

what are the major parts of the drum unit assembly of an M61A1/A2

Answer 27

drum unit, entrance cover, exit cover, and scoop disk

Question 28

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

Answer 28

one output shaft

Question 29

A gun gas purge system of an M61A1/A2 automatic gun is used for what purpose?

Answer 29

Cool the gun barrels and purge gas from the gun compartment

Question 30

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

Answer 30

Engine bleed air and the ram air scavenge door

Question 31

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

Answer 31

A/A (air to air) or A/G (air to ground)

Question 32

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

Answer 32

Clearing sector retainer

Question 33

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

Answer 33

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

Question 34

Which of the following gun maintenance procedures should be accomplished during scheduled maintenance of an M61A1/A2 automatic gun?

Answer 34

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

Question 35

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

Answer 35

30,000

Question 36

What is the rapid rate of fire in rounds per minute for the GAU-21?

Answer 36

950 to 1,100

Question 37

What is the maximum air-to-ground range, in meters, of the GAU-21?

Answer 37

6,500

Question 38

How is the GAU-16 cooled after firing?

Answer 38

air cooled

Question 39

What is the performance firing rate in rounds per minute of the GAU-16?

Answer 39

750 to 850

Question 40

What are the GAU-17 major gun assemblies?

Answer 40

barrels and barrel clamp assembly, housing assembly, rotor | assembly, and clutch assembly

Question 41

What is the sustained firing rate in rounds per minute of the M240D?

Answer 41

100 rpm

Question 42

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

Answer 42

M240D

Question 43

gau-21 max range

Answer 43

6,500 meters

Question 44

gau-21 Maximum effective range

Answer 44

1,850 meters

Question 45

how many major assemblies does the GAU-21 have?

Answer 45

8

Question 46

list the major components of the GAU-21

Answer 46

barrel assembly, receiver assembly, bolt assembly, barrel buffer assembly, feed cover assembly, back plate assembly, auxiliary return spring assembly, and trigger assembly.

Question 47

what is the GAU-16?

Answer 47

automatic, recoil-operated, closed-bolt, beltfed, air-cooled machine gun

Question 48

WHAT ARE THE MAJOR COMPONENTS OF THE GAU-16?

Answer 48

barrel and barrel extension assembly, rod assembly, breech bolt assembly, recoil buffer assembly, cover assembly, retracting slide assembly, receiver assembly, barrel jacket assembly, back plate assembly, and front sight assembly.

Question 49

how is the GAU-17 powered?

Answer 49

externally powered

Question 50

max range of the M240D?

Answer 50

3,725 meters

Question 51

MAX EFFECTIVE RANGE OF THE M240D?

Answer 51

1,200 meters

Question 52

M240D rate of fire?

Answer 52

650 to 950 rounds per minute