What caliber is the GAU-18?

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Prepare for the Aircraft Maintenance, Electrical Systems, and Hazard Communication in the Air Force Test. Study with multiple choice questions, flashcards, and detailed explanations. Get ready to excel in your exam!

Multiple Choice

What caliber is the GAU-18?

Explanation:
Caliber is the bore size of the gun, and the GAU-18/A is a seven-barrel rotary gun that fires .50 caliber rounds (0.50 inch, 12.7x99 mm). This makes it a heavy machine gun used as a helicopter door gun and similar platforms for close-range defense. The other options point to different weapon systems with larger projectiles—20 mm, 25 mm, and 30 mm autocannons—so they don’t describe the GAU-18.

Caliber is the bore size of the gun, and the GAU-18/A is a seven-barrel rotary gun that fires .50 caliber rounds (0.50 inch, 12.7x99 mm). This makes it a heavy machine gun used as a helicopter door gun and similar platforms for close-range defense. The other options point to different weapon systems with larger projectiles—20 mm, 25 mm, and 30 mm autocannons—so they don’t describe the GAU-18.

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