Antigrav Insertion System
The Antigrav insertion system or AGIS was an experimental contragrav "parachute" designed for low altitude use, minimizing the vulnerable period of a paratrooper's descent. A build-in radar altimeter activates a high-current battery at an altitude of 200m, rapidly decelerating (3-4Gs) the wearer of the harness to a safe imapct speed by not less than 50m above the ground. The harness is adjustable for most humanioid species, and can handle up to a 300 kg load (a control panel allows for adjustment of total mass). Special adaptaions and sacrifices were made to get a unit this small, and it was never widely accepted. In particular, its contragrav is power-hungry, and the pattery pack only lasts for about 10 seconds, so proper activation altitude is a must.