UNUSUAL ARMED HUEYS
The most common armed versions of the Huey have been covered earlier in this issue, but there were many experimental systems aimed at increasing the firepower of the helicopter in both attack and defence. Some of these included some surprisingly heavy weapons for a helicopter and required extensive modifications.
Other armament experiments included several different mounts for 20mm cannon, two of which are seen here on UH-1BS in 1965. A strengthened floor was fitted to the pre-production YUH-1B to test mounts for heavy weapons.two examples are shown here, a drum fed 20mm Oerlikon cannon, and the six barrelled 20mm M61 Vulcan cannon, capable of 2400 rounds per minute.
The XM30 was an experimental system featuring fully flexible faired in mounts for two XM140 30mm cannons, seen here in forward firing and fully deflected positions. Each gun had 600 rounds stored in the cabin.