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.

Disclosure are various embodiments of a loss prevention device responsive to freefall. The loss prevention device can be integrated into any object and incorporates physical, mechanical, and/or electrical modules configured to prevent the likelihood that dropping the object causes injury to persons or damage to structures in the vicinity. Such modules may constitute continuous or discrete, static or dynamic portions of the housing of the loss prevention device. Other modules may incorporate electromechanical components that allow for effective manipulation of the motion of the loss prevention device and the coupled object. The device can be configured to deploy said modules upon detecting freefall. In some cases, the device incorporate a release mechanism that facilitates said deployment.

A modular autonomous aerial passenger vehicle is provided to automatically transport any person or luggage or capable of being used by the defense organizations for monitoring without any interference or need of human pilot. The autonomous aerial vehicle is comprising of an aerodynamic main body having 4 fixed arms each and 2 foldable arms each of which further having a pair of propellers coupled at the edge of each foldable arm, one at the top and one at the bottom. Further, the autonomous aerial vehicle further includes a power management system; safety system; interior cockpit having a HMI and seating arrangement, where the HMI is a brain computer interface that acquires signals from the brain and analyses them to convert it into commands. It includes a display unit and manual control unit; primary and auxiliary battery modules, flight control unit, plurality of sensors and cameras and other safety equipment for safe functioning of the present autonomous aerial vehicle.

This invention relates to the use of an automatic safety parachute deployment system for drones (UAVs), which utilizes an airflow trigger that deploys one or more parachutes under certain aerodynamic conditions from the upward airflow during a flight malfunction. The system is mechanically activated without the use of electronics, batteries or an ejection spring which reduces the complexity and weight.

An automated aircraft recovery system is disclosed. In various embodiments, the system includes an interface configured to receive sensor data; and a control mechanism configured to: perform automatically a recovery action that is determined based at least in part on the sensor data. In various embodiments, the control mechanism may determine an expected state of an aircraft, determine whether a state of the aircraft matches the expected state, and in the event the state of the aircraft does not match the expected state, perform the recovery action.

An automated aircraft recovery system is disclosed. In various embodiments, the system includes an interface configured to receive sensor data; and a control mechanism configured to: perform automatically a recovery action that is determined based at least in part on the sensor data. In various embodiments, the control mechanism may determine an expected state of an aircraft, determine whether a state of the aircraft matches the expected state, and in the event the state of the aircraft does not match the expected state, perform the recovery action.

An aircraft includes an airframe parachute system. The parachute system includes an activation system, an extraction system, a harness system, and a parachute assembly.

An aircraft includes an airframe parachute system. The parachute system includes an activation system, an extraction system, a harness system, and a parachute assembly.

A system for deploying loads out of an aircraft comprises an aerial delivery parachute with an aerial-delivery parachute line and an activation means for placing the aerial delivery parachute in an enveloping flow past the aircraft. Within the aircraft a receiving device can be positioned that receives a tractive force acting on the aerial-delivery parachute line, which tractive force has been determined by a force measuring device and has been transmitted by way of a transmitting device. With the knowledge of the tractive force it is possible both to implement emergency release and to assess whether an aerial delivery parachute has correctly deployed in the flow enveloping the aircraft.

A system for deploying loads out of an aircraft comprises an aerial delivery parachute with an aerial-delivery parachute line and an activation means for placing the aerial delivery parachute in an enveloping flow past the aircraft. Within the aircraft a receiving device can be positioned that receives a tractive force acting on the aerial-delivery parachute line, which tractive force has been determined by a force measuring device and has been transmitted by way of a transmitting device. With the knowledge of the tractive force it is possible both to implement emergency release and to assess whether an aerial delivery parachute has correctly deployed in the flow enveloping the aircraft.