A selection is made between single stage and multistage parachute deployment for a vehicle based at least in part on vehicle state information. In the event multistage parachute deployment is selected, a drogue parachute is deployed during a first deployment stage and afterwards, a main parachute is deployed during a second deployment stage. In the event single stage parachute deployment is selected, at least the main parachute is deployed in a single stage where in the event the drogue parachute is deployed during the single stage, the drogue and main parachute are deployed simultaneously.

A vehicle recovery system includes a harness having a hub and a plurality of cords each including opposite first and second ends. The first ends are each coupled to the hub. The second ends are each configured to be connected to a fuselage of a vehicle. A tractor rocket includes a body and a bridle. The bridle includes a first end coupled to the body and an opposite second end. A parachute includes a riser, a canopy and a plurality of suspension lines. The suspension lines each include a first end coupled the canopy and an opposite second end coupled a first end of the riser. An opposite second end of the riser is coupled to the hub. The second end of the bridle is coupled to the first end of the riser.

A decelerator for decelerating an attached payload includes a first canopy, a second canopy, and an internal structure for redirecting air entering the decelerator out of the decelerator and in a contraflow direction, which is cognate to the direction of travel. The first canopy defines an interior volume and includes a first opening for receiving a flow of air into the interior volume and a second opening for permitting received air to travel out of the interior volume. The second canopy is then positioned over the second opening, and the internal structure extends at least partially through the interior volume and interconnects the first canopy and the second canopy. Air within the internal structure is directed out of the decelerator in the contraflow direction. The internal structure can be constructed of a plurality of venturi tubes to increase the velocity at which air is emitted from the decelerator.

A decelerator for decelerating an attached payload includes a first canopy, a second canopy, and an internal structure for redirecting air entering the decelerator out of the decelerator and in a contraflow direction, which is cognate to the direction of travel. The first canopy defines an interior volume and includes a first opening for receiving a flow of air into the interior volume and a second opening for permitting received air to travel out of the interior volume. The second canopy is then positioned over the second opening, and the internal structure extends at least partially through the interior volume and interconnects the first canopy and the second canopy. Air within the internal structure is directed out of the decelerator in the contraflow direction. The internal structure can be constructed of a plurality of venturi tubes to increase the velocity at which air is emitted from the decelerator.

The present disclosure relates to a drone including a drone body; a drone body battery provided in the drone body and responsible for supplying power to the drone body; a parachute kit detachably coupled to the drone body and including a parachute therein; a battery detector provided in the parachute kit and responsible for checking the state of the drone body battery; and a parachute controller for controlling the parachute kit depending on the state of the drone body battery detected by the battery detector, and to a parachute kit for drones. According to the present disclosure, the drone is configured so that, when the power of the parachute kit capable of being attached to or detached from the drone and the power of the drone body are cut off, the parachute is unfolded by spring elasticity or compressed air. Therefore, breakage of the drone may be prevented, and damage caused by drone crashes may be minimized.

The present disclosure relates to a drone including a drone body; a drone body battery provided in the drone body and responsible for supplying power to the drone body; a parachute kit detachably coupled to the drone body and including a parachute therein; a battery detector provided in the parachute kit and responsible for checking the state of the drone body battery; and a parachute controller for controlling the parachute kit depending on the state of the drone body battery detected by the battery detector, and to a parachute kit for drones. According to the present disclosure, the drone is configured so that, when the power of the parachute kit capable of being attached to or detached from the drone and the power of the drone body are cut off, the parachute is unfolded by spring elasticity or compressed air. Therefore, breakage of the drone may be prevented, and damage caused by drone crashes may be minimized.

Provided are an ejection device with reduced weight without reducing an ejection speed of an ejected object and a flying object including the ejection device. An ejection device 100 includes a piston member 10, a cylinder 14 which accommodates the piston member 10 and is provided with a hole portion 13 for allowing the piston member 10 to project outward during operation, a push-up member 15 pushed up in one direction by the piston member 10, an ejected object 16 pushed up while being supported by the push-up member 15, and a gas generator 17 which moves the piston member 10 in the cylinder 14, and in the ejection device 100, the push-up member 15 has a support portion 20 disposed on a distal end side of the piston member 10 with a tip of the piston member 10 in a moving direction of the piston member 10 set as a reference.

Provided are an ejection device with reduced weight without reducing an ejection speed of an ejected object and a flying object including the ejection device. An ejection device 100 includes a piston member 10, a cylinder 14 which accommodates the piston member 10 and is provided with a hole portion 13 for allowing the piston member 10 to project outward during operation, a push-up member 15 pushed up in one direction by the piston member 10, an ejected object 16 pushed up while being supported by the push-up member 15, and a gas generator 17 which moves the piston member 10 in the cylinder 14, and in the ejection device 100, the push-up member 15 has a support portion 20 disposed on a distal end side of the piston member 10 with a tip of the piston member 10 in a moving direction of the piston member 10 set as a reference.

An aircraft safety apparatus removably disposed on at least a portion of an aircraft, the aircraft safety apparatus including a parachute canister, including a main body to store at least one item therein, and at least one parachute disposed within at least a portion of the main body to reduce a rate of descent of the aircraft in response to extraction from the main body, and a rocket canister removably connected to at least a portion of the main body to at least partially fill at least a portion of the main body with a combustible gas, and a gas canister removably connected to at least a portion of the main body to at least partially fill at least a portion of the main body with a non-combustible gas.

An emergency landing apparatus for an aircraft and a method of operating the emergency landing apparatus is provided. The emergency landing apparatus comprises: one or more rocket motors arranged to eject efflux in order to provide upwards thrust to control descent of the aircraft during emergency landing of the aircraft; and control circuitry configured to: cause the one or more rocket motors to eject efflux and provide upwards thrust to control descent of the aircraft during emergency landing of the aircraft; and cause redirection of the efflux ejected by the one or more rocket motors, during the emergency landing of the aircraft, in order to reduce the upwards thrust provided by the one or more rocket motors.