AO CORE UNIT 5 | QUESTIONS AND ANSWERS | 2026
UPDATE | WITH COMPLETE SOLUTION
How much does the M61A1 weigh compared to the M61A2? Answer - M61A1:
252 lbs.
M61A2: 106 lbs.
What size round does the GAU-12/U 25mm. Gun System fire? Answer - 25mm.
Gun operation of the M197 is very similar to what weapon? Answer - M61A1
What aircraft utilizes the GAU-21 .50 Caliber Machine Gun? Answer - H-53 and
H-60 Series helicopters.
What are the nine actions in the cycle of operation for the GAU-16/A and XM-
218? Answer - •Firing the first round
•Recoiling
•Extracting the round
•Cocking
•Counter-recoiling
•Feeding the round
•Ejecting the round
•Chambering the round
•Automatic firing of subsequent round
, What is the major difference between the GAU-16/A and the XM-218? Answer
- GAU-16: Back Plate Assembly
XM-218: Spade Grip Assembly
What is the maximum rate of fire of the GAU-17 7.62mm. Mini Machine Gun?
Answer - 3000 RPM
What M50/PGU series cartridge Ammunition is used for practice firing and
boresighting gun systems? Answer - Target Practice Tracer Cartridge
What PGU cartridge is used for drilling and testing the feeder assembly of the
gun and related equipment? Answer - Dummy Cartridge
How is aircraft gun Ammunition identified? Answer - Size, shape, and weight
Can live ammunition be mixed with empty cases? Answer - No
What gun systems can the 7.62mm ammunition be used with? Answer - M240
and GAU-17 gun systems.
List the two major components of the Linkless Ammunition Loading System
(LALS) III. Answer - Ammunition loader and transfer system.
What is the purpose of the ammunition loader? Answer - Mechanical
ammunition storage and loading device driven by a hand crank or pneumatic
drive tool.
In what type of environment must the uploading and downloading operations
be conducted? Answer - A RADHAZ safe area.
UPDATE | WITH COMPLETE SOLUTION
How much does the M61A1 weigh compared to the M61A2? Answer - M61A1:
252 lbs.
M61A2: 106 lbs.
What size round does the GAU-12/U 25mm. Gun System fire? Answer - 25mm.
Gun operation of the M197 is very similar to what weapon? Answer - M61A1
What aircraft utilizes the GAU-21 .50 Caliber Machine Gun? Answer - H-53 and
H-60 Series helicopters.
What are the nine actions in the cycle of operation for the GAU-16/A and XM-
218? Answer - •Firing the first round
•Recoiling
•Extracting the round
•Cocking
•Counter-recoiling
•Feeding the round
•Ejecting the round
•Chambering the round
•Automatic firing of subsequent round
, What is the major difference between the GAU-16/A and the XM-218? Answer
- GAU-16: Back Plate Assembly
XM-218: Spade Grip Assembly
What is the maximum rate of fire of the GAU-17 7.62mm. Mini Machine Gun?
Answer - 3000 RPM
What M50/PGU series cartridge Ammunition is used for practice firing and
boresighting gun systems? Answer - Target Practice Tracer Cartridge
What PGU cartridge is used for drilling and testing the feeder assembly of the
gun and related equipment? Answer - Dummy Cartridge
How is aircraft gun Ammunition identified? Answer - Size, shape, and weight
Can live ammunition be mixed with empty cases? Answer - No
What gun systems can the 7.62mm ammunition be used with? Answer - M240
and GAU-17 gun systems.
List the two major components of the Linkless Ammunition Loading System
(LALS) III. Answer - Ammunition loader and transfer system.
What is the purpose of the ammunition loader? Answer - Mechanical
ammunition storage and loading device driven by a hand crank or pneumatic
drive tool.
In what type of environment must the uploading and downloading operations
be conducted? Answer - A RADHAZ safe area.
