A modal restraint system for an occupant of a seat of an aircraft. The modal restraint system includes a strap feeder unit and a strap selectively retractable into and extendable from the strap feeder unit. The strap feeder unit is adapted to switch between a plurality of modes including an unfixed mode and a fixed mode. The strap is extendable from and retractable into the strap feeder unit in the unfixed mode. The strap is substantially unextendable from the strap feeder unit in the fixed mode. The strap feeder unit is in the unfixed mode by default. The strap feeder unit is operable to switch from the unfixed mode to the fixed mode in response to a precautionary event including detection of an operational parameter that is beyond a predetermined threshold, thereby reducing freedom of movement of the occupant relative to the seat.

A leg restraint system for an ejection seat may comprise a leg restraint and a reel assembly coupled to the leg restraint. The reel assembly may include a drum configured to rotate about an axis. The leg restraint may be configured to wind around the drum in response to rotation of the drum about the axis.

An arm restraint assembly for an ejection seat may comprise a primary arm and a primary arm deployment system operationally coupled to the primary arm. The primary arm deployment system may be configured to rotate the primary arm about a primary arm pivot joint. The primary arm deployment system may be configured to attach to the ejection seat such that the primary arm deployment system translates with the ejection seat.

An anti-crash helicopter seat integrating multiple protections, including a main framework, a weighing sensor, a magnetorheological damper system, an upper body forced tensioning and quick disengagement system, a seat pan, a multifunctional vest and a controller, wherein the seat pan is slidably connected with the main framework in a vertical direction, the magnetorheological damper system is fixedly arranged on the seat pan and is connected with the main framework by the weighing sensor, the upper body forced tensioning and quick disengagement system is arranged on the seat pan, the multifunctional vest is connected with the seat pan by the upper body forced tensioning and quick disengagement system, and the controller is connected with the weighing sensor and the magnetorheological damper system respectively.

A vertical take-off and landing (VTOL) aircraft provides transportation to users of a network system. The network system may include multiple aircraft or other types of vehicles to provide multi-model transportation. An aircraft may include a fuselage, a truss coupled to the fuselage, and multiple distributed electric propellers coupled to the truss. The distributed electric propellers may be positioned on at least two different planes. The fuselage may include a cabin having one or more seats for the passengers arranged in a configuration that has a compact footprint, provides legroom, provides visibility to surroundings of the aircraft, or facilitates convenient ingress or egress of passengers. The aircraft may open a port cabin door and starboard cabin door for simultaneous ingress or egress of passengers.

A stowable travel accessory system that includes a head set and a leg-set for providing full support for the head, the neck and the legs of a passenger. The sets are adapted to be encapsulated together into a compact package. The head set includes an elastic jacket to be dressed on the headrest of the passenger's seat, two cushions for supporting the head, rear straps enable adjustment of the head set to the seats in different aircrafts, and encapsulating the cushions when being folded. The leg-set includes a foldable rigid foot-rest for carrying the weight of the legs, a belt, a buckle for creating a grasping loop from a segment of the belt, into which the cushions are inserted when encapsulated, such that when the strap is stretched, the length of the grasping loop will be reduced to be firmly tightened around the encapsulated head set.

An adjustable vehicle seat including a seat frame forming a seat back, the seat frame being configured to couple with an aerospace vehicle, and a seat pan coupled to the seat frame, where one or more of the seat frame and the seat pan is configured to couple the seat pan to the seat frame in one of a plurality of positions relative to the seat frame so that an eye position of a seat occupant relative to instrumentation within the aerospace vehicle is decoupled from a size of the seat occupant.

A stowable cabin attendant seat assembly includes a frame assembly mountable within a wall recess, a backrest mounted for reciprocating vertical translation within the frame assembly, a seat pan mounted for pivoting motion relative to the frame assembly, and at least one link connecting the seat pan to the backrest. The at least one link coordinates the seat pan and backrest motions such that upward lifting motion on the seat pan pushes the backrest vertically up for compact stowing and downward pivoting motion on the seat pan pulls the backrest vertically down.

A high rise building escape drone is shown and described. The high rise building escape drone includes of a frame. The frame has a spine secured to an upper housing. The upper housing secures a motor and a CPU operably connected to the motor. The motor is rotatably coupled to at least one propeller. A seat is secured to the spine below the upper housing. A control panel is secured to the seat. The control panel is operably coupled to the CPU and is capable to control the drone. A plurality of feet are secured to a bottom of the spine such that the feet support the drone.

An airplane emergency escape drone is shown and described. The airplane emergency escape drone includes a housing. The housing is made from a planar base, a plurality of sidewalk rising from the base, and a planar top secured to the top of the sidewalls. A door is located within one of the plurality of sidewalk. A motor is secured to the exterior of the planar top. A propeller is rotatably secured to the motor. A plurality of feet is secured to the exterior of the planar base.