Source: [...]

13 crew members

105mm howitzer cannon.
It uses of comparatively
small explosive charges to
propel projectiles at trajectories
with a steep angle of descent.

40mm Bofors cannon.
It`s a anti-aircraft gun.

25mm `Vulcan` cannon.
It fires 3,600 rounds per minute

AC-130 uses its gunships
for close air support, air
interdiction, and force
protection.

It`s a heavily-armed, ground attack airplane.
Its sole user is the United States Air Force.

During the Operation Desert Storm, it provided
air base defense and close air support for ground
forces. AC-130s were also used during Operations
in Somalia, providing close air support for UN
ground forces.