Aircraft Guns Flashcards
At what prescribed rate can an M61A1/A2 gun fire M59 series ammunition
4,000 to 7,200 rpm
What components are the primary parts of an M61A1/A2 automatic gun
Barrels , rotor assembly , and housing assembly
What means are used to secure the gun barrels to the stub rotor of an M61A1/A2 automatic gun
Interrupted locking lugs
On an M61A1/A2 gun , what component picks up a round as it enters the gun
Breech-bolt assembly
On an M61A1/A2 gun , a full firing cycle requires what prescribed number of actions
Seven
What are the two distinct cycles of an M61A1/A2 automatic gun operation
Firing and clearing
What components of an M61A1/A2 automatic gun ejects the empty case from the gun
The extractor lip
On an M61A1/A2 automatic gun , what sequence of actions is performed by the breech-bolt assembly during one full firing cycle
Feed , chamber , lock and fire , unlock , extract , and eject
A drum unit assembly consists of the drum unit and what other major parts
Entrance cover , scoop disk , and exit cover
The mechanical drive unit in an F/A-18 aircraft had what total number of output shafts
One
A gun has purge system is used for what purpose
Cool the gun barrels and purge gas from the gun compartment
The air required to operate the gun gas purge system in an F/A-18 aircraft is provided by what air source
Engine bleed air and the ram air scavenge door
In an F/A-18 aircraft, the M61A1/A2 automatic gun system can be operated in what computer mode
A/A , A/G , or CCIP
In an F/A-18 aircraft , what component is used to manually clear the M61A1/A2 automatic gun
Clearing section clamp
An M61A1/A2 automatic gun must be sent to a depot-level maintenance activity under which of the following conditions
All answers are correct
A. When major repair is required
B. When an alteration is authorized
C. When 120,000 rounds have been expended
Which of the following gun maintenance procedures should be accomplished during scheduled maintenance
All answers are correct
A. Lubrication
B. Normal disassembly and parts replacement
C. A functional check of the components based on the round interval
Scheduled maintenance for an M61A1/A2 automatic gun handling and drive system should be performed after what maximum number of rounds has been fired
30,000 rounds
What is the rapid rate of fire for the GAU-21
950 to 1100 rounds per minute
What is the maximum air-to-ground range of the GAU-21
6,500 meters
How is the GAU-16 cooled after firing
By air
What is the performance firing rate of the GAU-16
750 to 850 rounds per minute
The GAU-17 major gun assemblies include the barrels and barrel clamp , housing , rotor , and what assembly
Clutch
What is the sustained firing rate of the M240D
100 rounds per minute
What weapon can be easily removed from the helicopter and used for ground defense if needed
M240D
How is an M61A1/A2 automatic gun is (1) driven and (2) controlled
(1)hydraulically (2) electrically
the M61A1 and M61A2 is a six barrel , rotary action , automatic gun based on the machine gun design of whom
Richard J. Gatling
the M61A1/2 automatic gun is hydraulically driven , electrically controlled , and can fire M50 and PGU series ammunition at how many rounds per minute
4,000 to 6,000
the operation of the M61A1/2 gun is divided into what two distinct cycles
firing and clearing
the ammunition handling systems holds a maximum of how many rounds of ammunition in a he F/A-18 M61A1/2 gun system
578
the maintenance and testing responsibilities of M61a[/2 gun installations are distributed evenly beet wren the organizational and what other levels of maintenance
intermediate
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
organizational
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
intermediate
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 ?
120,000
scheduled M61A1/2 gun maintenance begins at how many rounds
7,500
the GAU-21 is capable of firing at a rapid rate of how many rounds per minute
950 to 1100
the GAU-21 has a barrel life of how many rounds
10,000
the GAU-21 has a depot maintenance cycle of how many rounds
40,000
the GAU-21 has a burst limit of how many rounds
600
what is the muzzle velocity if the GAU-21
2,887 fps
the GAU-21 weapon system is capable of being mounted on what aircraft
MH-60
the GAU-16 had a depot maintenance cycle of how many rounds
50,000
what is the performance rate of fire for the GAU-16
750 to 850 rounds per minute
what is the muzzle velocity in fps of the GAU-17
2,850
what is the rate of fire of the GAU-17
3,000 rounds per minute
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
650-950
what is the maximum range of the M240D
3,725
what is the maximum effective range of the M240D
1,200 meters
