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.