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Various launch vehicles configurations each include an X33 aeroshell of a booster or orbiter both of which use bell nozzle engines, and a feeding stage for supplying liquid propellant to the engines for providing primary lifting thrust for lifting a payload into orbit. The feeding stage can be an ex

Various launch vehicles configurations each include an X33 aeroshell of a booster or orbiter both of which use bell nozzle engines, and a feeding stage for supplying liquid propellant to the engines for providing primary lifting thrust for lifting a payload into orbit. The feeding stage can be an external tank without engines or a core vehicle also with bell nozzle engines. The orbiter or booster use three, two-two or five bell nozzle engines configurations and the feeding stage uses a zero or two bell nozzle engines. The combination of orbiters, boosters, external tanks and core vehicles offer a variety of configuration to meet particular mission requirements.

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Various launch vehicles configurations each include an X33 aeroshell of a booster or orbiter both of which use bell nozzle engines, and a feeding stage for supplying liquid propellant to the engines for providing primary lifting thrust for lifting a payload into orbit. The feeding stage can be an ex

Various launch vehicles configurations each include an X33 aeroshell of a booster or orbiter both of which use bell nozzle engines, and a feeding stage for supplying liquid propellant to the engines for providing primary lifting thrust for lifting a payload into orbit. The feeding stage can be an external tank without engines or a core vehicle also with bell nozzle engines. The orbiter or booster use three, two-two or five bell nozzle engines configurations and the feeding stage uses a zero or two bell nozzle engines. The combination of orbiters, boosters, external tanks and core vehicles offer a variety of configuration to meet particular mission requirements. a portion of said lift generating means mounted to the aircraft, bearings permitting relative movement between the aircraft body and said portion of the lift generating means, said movement in lateral and longitudinal directions in a plane substantially parallel to said thrust line, and actuation means for moving said portion of said lift generating means relative to said aircraft body in said lateral and longitudinal directions in said plane for effecting flight control of said aircraft. 12. An aircraft flight control system according to claim 11 wherein the bearings comprise liner bearings. 13. An aircraft flight control system according to claim 11 in which the actuation means comprise linear electrical actuators. 14. An aircraft flight control system according to claim 11 in which the aerodynamic lift generating means comprise a pair of wings each wing having a variable wing area. 15. An aircraft flight control system according to claim 14 in which each wing comprises a first wing portion which is fixed relative to the body of the aircraft, a second wing portion which is mounted to the first wing portion by means of bearings so as to be extendable and retractable relative thereto, and actuation means for extending and retracting the second wing portion. 16. A method of flight control in an aircraft, said aircraft having a body and including an aerodynamic lift generating means and at least one engine, said engine having a thrust line, comprising the steps of: mounting a portion of said lift generating means to the aircraft body, mounting said portion of said lift generating means for movement in lateral and longitudinal directions in a Diane substantially parallel to said thrust line relative to said aircraft body, and moving the portion of said lift generating means in said lateral and longitudinal directions in said plane relative to said aircraft body. 17. A method according to claim fin which the aerodynamic lift generating means comprise a pair of wings, and including the further step of varying the wing area for controlling the lift.