Patent attributes
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.
