An air delivery barrel system is described, the air delivery barrel system includes a strap system that provides line stretch of the strap system when a force is exerted on the strap system, the strap system including a continuous strap, a first barrel, the first barrel being formed out of a cylindrically shaped wall and the cylindrically shaped wall including a channel that the strap system passes through, an end cap, the end cap being detachably connectable to a bottom end of the first barrel, the end cap protecting a bottom portion of the strap system, a lid, the lid being detachably connectable to a top end of the first barrel, the lid including a recess through which the strap system passes through, and a second barrel that can be situated within the first barrel and the cylindrically shaped wall of the first barrel protects the second barrel.

A parachute structure includes two canopies. A primary canopy has a central air vent. The primary canopy is attached to an object by primary suspension lines for reducing the velocity of descent of the object. A secondary canopy captures air that exits from the central air vent of the primary canopy. The secondary canopy is attached to the object by control lines. Control of the direction and rate of descent of the parachute is accomplished by adjusting the length of the control lines by way of actuators to alter the distance between the secondary canopy and the primary canopy. Symmetrical changes in the length of suspension lines alter the velocity of descent of the object while asymmetric change steer of the object. In some embodiments, liquid jets ejected from the object increase deceleration and change direction and exterior air bags are deployed to cushion the object from damage.

A parachute structure includes two canopies. A primary canopy has a central air vent. The primary canopy is attached to an object by primary suspension lines for reducing the velocity of descent of the object. A secondary canopy captures air that exits from the central air vent of the primary canopy. The secondary canopy is attached to the object by control lines. Control of the direction and rate of descent of the parachute is accomplished by adjusting the length of the control lines by way of actuators to alter the distance between the secondary canopy and the primary canopy. Symmetrical changes in the length of suspension lines alter the velocity of descent of the object while asymmetric change steer of the object. In some embodiments, liquid jets ejected from the object increase deceleration and change direction and exterior air bags are deployed to cushion the object from damage.

A parachute riser assembly for a parachute comprises a left riser, a right riser, and a curtain. The left riser is configured to extend from a canopy and is configured to be coupled to a left attachment point of a harness worn by a user, according to various embodiments. Similarly, the right riser is configured to extend from the canopy and is configured to be coupled to a right attachment point of the harness, according to various embodiments. The curtain may be coupled to and may extend between the left riser and the right riser. In various embodiments, a portion of the curtain is configured to move along the left riser and the right riser from a furled state to an unfurled state in response to tensioning the left riser and the right riser.

A parachute riser assembly for a parachute comprises a left riser, a right riser, and a curtain. The left riser is configured to extend from a canopy and is configured to be coupled to a left attachment point of a harness worn by a user, according to various embodiments. Similarly, the right riser is configured to extend from the canopy and is configured to be coupled to a right attachment point of the harness, according to various embodiments. The curtain may be coupled to and may extend between the left riser and the right riser. In various embodiments, a portion of the curtain is configured to move along the left riser and the right riser from a furled state to an unfurled state in response to tensioning the left riser and the right riser.

A parachute riser assembly for a parachute comprises a left riser, a right riser, and a curtain. The left riser is configured to extend from a canopy and is configured to be coupled to a left attachment point of a harness worn by a user, according to various embodiments. Similarly, the right riser is configured to extend from the canopy and is configured to be coupled to a right attachment point of the harness, according to various embodiments. The curtain may be coupled to and may extend between the left riser and the right riser. In various embodiments, a portion of the curtain is configured to move along the left riser and the right riser from a furled state to an unfurled state in response to tensioning the left riser and the right riser.

A parachute riser assembly for a parachute comprises a left riser, a right riser, and a curtain. The left riser is configured to extend from a canopy and is configured to be coupled to a left attachment point of a harness worn by a user, according to various embodiments. Similarly, the right riser is configured to extend from the canopy and is configured to be coupled to a right attachment point of the harness, according to various embodiments. The curtain may be coupled to and may extend between the left riser and the right riser. In various embodiments, a portion of the curtain is configured to move along the left riser and the right riser from a furled state to an unfurled state in response to tensioning the left riser and the right riser.

Methods of reducing wing type parachute opening shock during a parachute drop, and parachute systems with reduced opening shocks are disclosed, the opening force reduction is achieved by dynamic braking, i.e. dynamically adjusting the canopy control lines during the inflation stage of the canopy. Typically, the control lines are set to zero brake length when the parachute canopy is released from the deployment bag, and are at least shortened during the inflation stage, optionally all the way to full brake. Optionally the control lines are also lengthened prior to completion of the canopy inflation. Other features and parachute systems are also disclosed.

Methods of reducing wing type parachute opening shock during a parachute drop, and parachute systems with reduced opening shocks are disclosed, the opening force reduction is achieved by dynamic braking, i.e. dynamically adjusting the canopy control lines during the inflation stage of the canopy. Typically, the control lines are set to zero brake length when the parachute canopy is released from the deployment bag, and are at least shortened during the inflation stage, optionally all the way to full brake. Optionally the control lines are also lengthened prior to completion of the canopy inflation. Other features and parachute systems are also disclosed.

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.