Abstract: A variable area exhaust device is provided for a gas turbine engine, with the actuation thereof being achieved by means other than conventional actuators. Area variation is accomplished by means of a rotatable duct section forming the downstream extremity of the exhaust device. A portion of the duct comprises a nozzle flap and another portion comprises a piston disposed in a pressure plenum and adapted to at least partially balance the exhaust gas loads on the flap portion to facilitate actuation thereof.

Abstract: A flight maneuverable gas turbine exhaust nozzle is provided with cooperating variable internal converging-diverging flaps to provide area control. A flap downstream of the converging-diverging flap provides flight maneuver vectoring as well as external exhaust expansion control. A vertical take-off and landing capability is provided by deployment of a rotating bonnet-type deflector which diverts the exhaust stream downward around one side of the exhaust nozzle. The nozzle throat rotates with the deflector to produce efficient turning of the exhaust stream.

Abstract: Production of a downwardly and forwardly directed reverse thrust discharged from a reverse-thrust duct is controlled by a door in the rearward-discharge duct having its rearward portion pivotally mounted for swinging of its forward portion between a position lodged in a recess in the side of the rearward-discharge duct and a position in which the forward edge of the door is spaced from the recess and the door is inclined to deflect jet exhaust from the rearward-discharge duct into the reverse-thrust duct branching from the rearward-discharge duct. The discharge end of the reverse-thrust duct can be closed by a second door and actuating means interconnecting the two doors can move them simultaneously through proportionate degrees of movement.

Abstract: An aircraft capable of flying at very low velocities utilizing a wing envelope of an aerodynamic configuration having cells filled with a lighter-than-air gas. In one embodiment the buoyancy of the wing is slightly less than the total weight of the aircraft wherein forward movement is required to provide lift. In another embodiment the buoyancy is greater than the aircraft weight wherein forward motion is required to produce universal control without the release of gas or ballast. The wing envelope is formed of a plurality of trussed members radially extending from an axis producing a plurality of cells covered by a lightweight high strength skin material, the aircraft being characterized by high strength, economy and efficiency of construction and efficiency of lift at low speeds.

Abstract: A lighter than air ship, with a bow plate on the bow, two cars suspended beneath the elongated bag, the cars having water ballast tanks, with scoops to take in water when the airship is landing on water and valves to let the water out when the airship is taking off, with a sea anchor and rode (rope) to the bow plate, a ground (bottom) anchor and rode (rope) to the bow plate, metal ribs attached to the bow plate and extending to a stern plate and connected to the bag both above and below the bag, with a vertical rudder for steering right and left, horizontal rudders for steering up and down and a ballonet inside the bag for keeping proper pressure, landing wheels for landing the airship on land, the cars being capable of landing the airship on water, the bag having an aerodynamic lifting shape so that the airship can take off and fly heavy and by dumping water can land safey and landing on water can take in water to be stable on the surface, can land on land with the wheels and be secured by the rodes.