Disclosed are various embodiments for an electromagnetic automatic deactivation device (ADD). An ADD may be used with an ejector-spring static line reserve parachute, common in low-altitude military jumps. Activating a reserve parachute from within an aircraft, while being towed by an aircraft, or when trapped inside another parachute, can result in significant injury, and may be fatal. An ADD may be added to the internal packaging of a reserve parachute to prevent its accidental activation. An ADD may be configured to sense ambient pressure, linear and rotational motion, and other data, to identify hazardous environmental conditions. An ADD may be further configured to support a towed jumper whose static line is cut, by strategically deactivating the electromagnetic assembly, and therefore activating the reserve parachute. The ADD may be modified to include the ability to override the ADD with a secondary pull on the ripcord handle.

Disclosed are various embodiments for an electromagnetic automatic deactivation device (ADD). An ADD may be used with an ejector-spring static line reserve parachute, common in low-altitude military jumps. Activating a reserve parachute from within an aircraft, while being towed by an aircraft, or when trapped inside another parachute, can result in significant injury, and may be fatal. An ADD may be added to the internal packaging of a reserve parachute to prevent its accidental activation. An ADD may be configured to sense ambient pressure, linear and rotational motion, and other data, to identify hazardous environmental conditions. An ADD may be further configured to support a towed jumper whose static line is cut, by strategically deactivating the electromagnetic assembly, and therefore activating the reserve parachute. The ADD may be modified to include the ability to override the ADD with a secondary pull on the ripcord handle.

A drone includes 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.

A drone includes 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.

A parafoil for operation at high altitudes, in low density air, or at low airspeeds, and methods for opening same. Some versions of the parafoil comprise flexible members connected to the parafoil canopy. When the parafoil canopy is in a stowed configuration, the members are deformed, storing elastic energy. When the canopy is released from its stowed configuration, the members spring back to their undeformed shapes, thereby opening or assisting with opening the canopy. The flexible member may also be attached to a base structure, which is attached to the payload. The members may comprise rods or hollow tubes that can be flexed using a fulcrum near the base structure, or a spacer plate, so that the ends connected to the canopy are restrained by a parachute bag containing the stowed or packed canopy. The parachute bag can be opened prior to or during detachment of the parafoil from the flight vehicle.

A parachute device for drone includes a container, a power source, a base, a parachute body and an open-assist member. A top of the container has an opening. The power source is disposed on a bottom of the container. The base is disposed on the power source. The parachute body, disposed on the base, is in a folded status. The open-assist member is disposed in the parachute body. The open-assist member contacts the base and the center of the inner surface of the parachute body.

A parachute device for drone includes a container, a power source, a base, a parachute body and an open-assist member. A top of the container has an opening. The power source is disposed on a bottom of the container. The base is disposed on the power source. The parachute body, disposed on the base, is in a folded status. The open-assist member is disposed in the parachute body. The open-assist member contacts the base and the center of the inner surface of the parachute body.

The technology relates to techniques for drogue deployment for a lighter than air (LTA) vehicle descent. A drogue deployment system for an LTA vehicle descent can include a drogue comprising a drogue parachute coupled to a carrier. A spring can be configured to launch the drogue from a launch tube directed outward from an apex of the LTA vehicle in an acute angle from a horizontal plane. A core can be placed around the launch tube and placed around the spring, the core compressing the spring and holding the spring in a compressed state prior to deployment, and a riser can couple the carrier to the envelope of the LTA vehicle. In some cases, the drogue deployment system can comprise two or more drogues, wherein intervals between the two or more drogues can be selected such that horizontal components of drogue deployment forces approximately cancel out.

The technology relates to techniques for drogue deployment for a lighter than air (LTA) vehicle descent. A drogue deployment system for an LTA vehicle descent can include a drogue comprising a drogue parachute coupled to a carrier. A spring can be configured to launch the drogue from a launch tube directed outward from an apex of the LTA vehicle in an acute angle from a horizontal plane. A core can be placed around the launch tube and placed around the spring, the core compressing the spring and holding the spring in a compressed state prior to deployment, and a riser can couple the carrier to the envelope of the LTA vehicle. In some cases, the drogue deployment system can comprise two or more drogues, wherein intervals between the two or more drogues can be selected such that horizontal components of drogue deployment forces approximately cancel out.

The technology relates to techniques for drogue deployment for a lighter than air (LTA) vehicle descent. A drogue deployment system for an LTA vehicle descent can include a drogue comprising a drogue parachute coupled to a carrier. A spring can be configured to launch the drogue from a launch tube directed outward from an apex of the LTA vehicle in an acute angle from a horizontal plane. A core can be placed around the launch tube and placed around the spring, the core compressing the spring and holding the spring in a compressed state prior to deployment, and a riser can couple the carrier to the envelope of the LTA vehicle. In some cases, the drogue deployment system can comprise two or more drogues, wherein intervals between the two or more drogues can be selected such that horizontal components of drogue deployment forces approximately cancel out.