80mm field gun

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80mm field gun

80mm field gun.png
Type: Regimental artillery field gun
Place of origin: Kildare, Shireroth

In service: 1584 AN – present
Used by:
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Corps of Auxiliaries, Goldshire Regulars

Designed: 4556 - 4558 ASC
Manufacturer: Red Bear LLC
(Formerly Heimat Industries)

Weight: 1,566 kg
Barrel length: 2.80m
Crew: 6
Shell: 80 x 350 mm
Caliber: 80 mm
Carriage: Artillery tractor
Rate of fire: 14 RPM
Effective range: 18,000 m
Maximum range: 18,500 m

The 80mm field gun is a quick-firing field artillery piece. It was the first artillery piece which was developed by Heimat Industries. Largely obsolescent, it remains in extensive use with the Jingdaoese armed forces and the second-line formations of the Imperial Forces.

Description of the hydro-pneumatic recoil mechanism

The gun's barrel slid back on rollers, including a set at the muzzle, when the shot is fired. The barrel is attached near the breech to a piston rod extending into an oil-filled cylinder placed just underneath the gun. When the barrel recoiled, the piston is pulled back by the barrel's recoil and thus pushes the oil through a small orifice and into a second cylinder placed underneath.

That second cylinder contains a freely floating piston which separates the surging oil from a confined volume of compressed air.

During the barrel's recoil the floating piston being pressed forward by the surging oil, compresses the air even further inside the confined volume. This action absorbs the recoil progressively as the internal air pressure rose and, at the end of recoil, generates a strong but decreasing back pressure that returns the gun forward to its original position.