Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
How is an M61A1/A2 automatic gun is (1) driven and (2) controlled? |
(1) Hydraulically (2) Electrically |
|
At what prescribed rate can an M61A1/A2 gun fire M50 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? |
Interupted 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 component 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 on full firing cycle? |
Feed Chamber Lock Fire Unlock Extract Eject |
|
A drum unit assembly consists of the drum unit and what other major parts? |
Entrance cover Scoop disk Exit cover |
|
The mechanical drive unit in an F/A-18 aircraft has what total number of output shafts? |
One |
|
A gun gas purge system is used for what purpose? |
Cool the gun barrels and purge gas from the gun compartment |
|
The air required to ooperate 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 if the following conditions? |
When major repair is required When an alteration is authorized When 120,000 rounds have been expended |
|
Which of the following gun maintenance procedures should be accomplished during scheduled maintenance? |
Lubrication Normal dissassembly and parts replacement A functional check of the components based on the round interval |
|
Scheduled maitnenance 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 ari 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 |