The extraction parachute jettison system (EPJS) allows jettisoning of an extraction parachute, extraction line, and line panel in the event of a malfunction during the extraction phase of airdrop. The system is capable of jettisoning a single 15, 22, or 28-foot extraction parachute.
In normal cargo aerial delivery operations, the extraction parachute is deployed and the cargo pallet exits the aircraft.
A malfunction of this process of extracting palletized cargo during an in-flight delivery puts the the aircraft and the safety of the entire crew at risk.
The capability of remotely jettisoning the high drag-producing extraction parachutes in the event of a cargo pallet exit malfunction is essential. Currently, if a malfunction occurs the loadmaster must position themselves at the ramp exit and between the cargo pallet and extraction parachute main lines. Once at that position the loadmaster must manually cut-away the extraction parachute main lines by hand. This is very dangerous because the cargo pallet load could break away and strike the loadmaster while the main extraction lines are being cut.
The FXC Extraction Parachute System (EPJS) concept has been developed to jettison malfunctioning parachutes remotely, quickly and safely.
The system requires no modification to the aircraft and only requires a 28 VAC power source. One EPJS is required for each cargo pallet.
The EPJS is comprised (refer to diagram) of the following major assemblies: