GEO Cannon
From Epiverse
The Garfield Electronics Ordinance, or GEO Series, is a family of cannons designed by Garfield Electronics Company.
The GEO-2 Dual Rotary Autocannon is a 30mm two-barrel rotating autocannon, and the precursor to the GEO-4. The GEO-2 was intended to be light and compact enough to mount on aircraft. It was also sometimes used in pairs as a formidable AA gun able to be used in static defence and on multi-purpose vehicles. In order to make the cannon as compact as possible, the GEO-2 does not have an integrated magazine and feeding system - it requires an external source of ammunition.
The GEO-4 Quad Rotary Autocannon is a 35mm four-barrel rotating autocannon. It was commonly used in ISS static defences, as well as being utilized by all three Third War factions on military walkers. It was often too heavy and awkward to integrate into helicopter and jet fighter designs, though the ADA made an exception when it adopted the French JaL-11 Airequin.
The GEO-3 Hybrid Plasma Weapon is a 115mm rifled tank gun. It is the first cannon that makes use of a hybrid shell utilizing a plasma coating to aid in its penetrative qualities. The 115mm Hybrid shell uses mostly conventional munitions with the plasma wrapping around the projectile as it passes through the barrel's midsection, forming an ultra-high tempurature coating around the shell with some charge-disrupting properties that allow it to pass through charged armor much better than traditional cannon rounds. The shell itself allows the plasma coating to avoid blooming before hitting the target, and the three rings near the end of the barrel ensure the plasma's stability upon exiting the barrel. The ammunition itself is the 115mm High Explosive Envelope Plasma "HEEP" round. Its base design is an evolution of kinetic energy penetrator ammunition, modified to keep the plasma coating closely fitting around the projectile. A later version of the HEEP round used a collapsable mesh in front of the arrowhead section, which allowed the plasma to extend beyond the arrowhead slightly and improve the softening potential.
Though CASCA does slow it down considerably, the projectile's plasma coating puts a heavy strain on the charge system and if enough rounds are fired in quick succession, the targets charge system will overload, causing it to fuse and rendering it useless until repairs can be made. This is especially a problem for early charge systems that interface directly with the vehicles main power supply; if the charge system overloads, it will also knock out the entire electrical system of the vehicle. If the target vehicle is also using a GEO-3 or other similar weapon that interfaces with the power supply, the weapon will likely suffer irrecoverable internal damage from overheating. Later AV-2 models were built with multiple power supplies dedicated seperately to the charge-shield and main weapon.
GEO-3 cannons are usually fitted with M1000 VHMG as a coaxial machinegun. Due to the possibility of the coaxial weapon disturbing the delicate balance of the plasma-coated projectiles, it is usually mounted loosely, making vehicles using the GEO-3 notorious for comparitively inaccurate machinegun fire. The GEO-3 was first used in the AV-2 MBHT as its primary weapon.
GEO-5 gatling 5-barrel
GEO-6 autocannon anti-CASCA 3-barrel
