Abstract: A life preserver head restraint may be configured to inflate in response to deployment of a parachute assembly. The life preserver head restraint may comprise an inflatable volume and a charge tank fluidly coupled to the inflatable volume. In an inflated state, the life preserver head restraint may restrict head movement during line stretch of the parachute assembly.

Abstract: A suspension line assembly for a parachute may comprise a first set of suspension lines bound together to form a first riser, and a second set of suspension lines bound together to form a second riser. A confluence may be formed by the first set of suspension line and the second set of suspension line. The confluence may comprise interior confluence suspension lines and exterior confluence suspension lines that alternate circumferentially along a perimeter of a parachute canopy.

Abstract: A multi-staged suspension line length parachute may include a suspension line having a primary length and a secondary length. The primary length may be deployable upon a first deployment of the multi-staged suspension line length parachute. The secondary length may be prevented from deployment until the primary length has fully deployed. An attenuator may attach a first portion of the secondary length to a second portion of the secondary length.

Abstract: An inflatable head restraint system for a parachute assembly may comprise an inflatable volume configured to inflate in response to a deployment of the parachute assembly. The inflatable volume may be located between a left shoulder riser and a right shoulder riser of the parachute assembly. A conduit may be fluidly coupled to the inflatable volume.

Abstract: A multi-staged suspension line length parachute may include a suspension line having a primary length and a secondary length. The primary length may be deployable upon a first deployment of the multi-staged suspension line length parachute. The secondary length may be prevented from deployment until the primary length has fully deployed. An attenuator may attach a first portion of the secondary length to a second portion of the secondary length.

Abstract: A parachute assembly for decelerating an occupant of an ejection seat may comprise a left shoulder riser configured to be located over a left shoulder of the occupant upon deployment of the parachute assembly. A right shoulder riser may be configured to be located over a right shoulder of the occupant upon deployment of the parachute assembly. A head restraint, configured to be behind a head of the occupant upon deployment of the parachute assembly, may be located between the left and right shoulder risers.

Abstract: A parachute assembly for an ejection seat may comprise a canopy and a first suspension line coupled to the canopy. A first riser may be coupled to the first suspension line. A seat cushion may be coupled to the first riser. The seat cushion may be configured detach from the ejection seat and restrict rearward translation of a head of an occupant of the ejection seat upon deployment of the parachute assembly.

Abstract: A system for translating a head restraint of a parachute assembly away from a head of an occupant supported by the parachute assembly may comprise a chord coupled to the head restraint and at least one of a control line configured to manipulate a canopy of the parachute assembly or a handle coupled to the control line.

Abstract: A seat configured to support an occupant may include a urine-based power generator and an adjustable cushion. The urine-based power generator includes a urine accumulation reservoir configured to receive urine from the occupant, and the urine-based power generator is configured to provide power to the adjustable cushion. The seat may be an ejection seat, and the urine-based power generator and the adjustable cushion may be mounted to the seat such that the urine-based power generator and the adjustable cushion are configured to be ejected with the ejection seat.

Abstract: A life preserver head restraint may be configured to inflate in response to deployment of a parachute assembly. The life preserver head restraint may comprise an inflatable volume and a charge tank fluidly coupled to the inflatable volume. In an inflated state, the life preserver head restraint may restrict head movement during line stretch of the parachute assembly.

Abstract: A suspension line assembly for a parachute may comprise a first set of suspension lines bound together to form a first riser, and a second set of suspension lines bound together to form a second riser. A confluence may be formed by the first set of suspension line and the second set of suspension line. The confluence may comprise interior confluence suspension lines and exterior confluence suspension lines that alternate circumferentially along a perimeter of a parachute canopy.

Abstract: A fluid fitting assembly is disclosed according to various embodiments. The fluid fitting assembly may comprise a fluid fitting, a fluid fitting retainer, and an alignment feature. The fluid fitting may comprise a tube and a fluid fitting flange. The fluid fitting retainer may comprise a retainer flange, wherein an inner surface of fluid fitting retainer is configured to seat against a radially outer surface of the fluid fitting flange. The alignment feature may be disposed on an outer diameter of the fluid fitting, wherein the alignment feature is located adjacent to the fluid fitting flange.

Abstract: A multi-staged suspension line length parachute may include a suspension line having a primary length and a secondary length. The primary length may be deployable upon a first deployment of the multi-staged suspension line length parachute. The secondary length may be prevented from deployment until the primary length has fully deployed. An attenuator may attach a first portion of the secondary length to a second portion of the secondary length.

Abstract: An inflatable head restraint system for a parachute assembly may comprise an inflatable volume configured to inflate in response to a deployment of the parachute assembly. The inflatable volume may be located between a left shoulder riser and a right shoulder riser of the parachute assembly. A conduit may be fluidly coupled to the inflatable volume.

Abstract: A parachute assembly for decelerating an occupant of an ejection seat may comprise a left shoulder riser configured to be located over a left shoulder of the occupant upon deployment of the parachute assembly. A right shoulder riser may be configured to be located over a right shoulder of the occupant upon deployment of the parachute assembly. A head restraint, configured to be behind a head of the occupant upon deployment of the parachute assembly, may be located between the left and right shoulder risers.

Abstract: A system for translating a head restraint of a parachute assembly away from a head of an occupant supported by the parachute assembly may comprise a chord coupled to the head restraint and at least one of a control line configured to manipulate a canopy of the parachute assembly or a handle coupled to the control line.

Abstract: A parachute assembly for an ejection seat may comprise a canopy and a first suspension line coupled to the canopy. A first riser may be coupled to the first suspension line. A seat cushion may be coupled to the first riser. The seat cushion may be configured detach from the ejection seat and restrict rearward translation of a head of an occupant of the ejection seat upon deployment of the parachute assembly.

Abstract: A multi-staged suspension line length parachute is provided. The parachute may comprise a canopy, a suspension line, a bundle, a bundling confluence, a traditional confluence, and a riser. The parachute may also comprise a cutter and a cutter pin puller configured to activate the cutter. The bundle may comprise a bundling line configured to secure secondary length from the suspension line. The parachute may deploy to a first length. In response to tension on the cutter pin puller, the cutter may activate to sever the bundling line in the bundle, causing the secondary length of the suspension line to release. The parachute may then deploy to a second length.

Abstract: A multi-staged suspension line length parachute is provided. The parachute may comprise a canopy, a suspension line, a bundle, a bundling confluence, a traditional confluence, and a riser. The parachute may also comprise a cutter and a cutter pin puller configured to activate the cutter. The bundle may comprise a bundling line configured to secure secondary length from the suspension line. The parachute may deploy to a first length. In response to tension on the cutter pin puller, the cutter may activate to sever the bundling line in the bundle, causing the secondary length of the suspension line to release. The parachute may then deploy to a second length.

Abstract: A fluid fitting assembly is disclosed according to various embodiments. The fluid fitting assembly may comprise a fluid fitting, a fluid fitting retainer, and an alignment feature. The fluid fitting may comprise a tube and a fluid fitting flange. The fluid fitting retainer may comprise a retainer flange, wherein an inner surface of fluid fitting retainer is configured to seat against a radially outer surface of the fluid fitting flange. The alignment feature may be disposed on an outer diameter of the fluid fitting, wherein the alignment feature is located adjacent to the fluid fitting flange.