Heligun EX17.pdf - Forgotten Weapons

INTRODUCTION
HTC-AD 66-21
The Heligun is a light, self-powered, high-rate- of-fire weapon chambered
for the 7. 62-rrun NATO cartridge. The maximum rate of fire is in excess
of 6000 shots per minute, Weighing approximately thirty pounds, the gun
provides four to ten times the fire power a£ other self-powered weapons,
In comparison with other high-rate-of-fire guns, it provides the simplicity
an? safety of a self-powered gun at less than half the system weight and at
even greater reductions in cost and complexity.
The gun is belt-fed, using the standard M13 link, Dual belts are used to
increase the 1nargin of safety of the link and to facilitate ammunition box
installation, No ammunition booster is required in normal systems.
It should be noted that the Heligun, unlike externally-powered weapons,
achieves its full rate of fire instantaneously, providing a major accuracy
advantage,
Gun Function
The Heligun operates on the Marquardt cycle, using a combination of
recoil and gun gas energy for power, No external power is required for
operation.
Starting
When the trigger is pulled, the auxiliary firing pin is unseared and strikes
the hammer, firing the cartridge in line with the lower barrel,
Rarruning and Ejecting
As the bullet passes the ram port approximately five inches down the barrel,
gun gas is permitted to flow into the ram system. This gas flows through
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