|
|family = SDLV |comparable = National Launch System |status = Proposed |sites = LC-39, Kennedy Space Center |launches = |payloads = Orion Crew Exploration Vehicle Altair Lunar Surface Access Module |stagedata = }} The Jupiter family of Heavy Lift Launch Vehicles is part of the proposed DIRECT Shuttle-Derived Launch Vehicle architecture. It is intended to be an alternative to the Ares I and Ares V rockets which were under development for the United States National Aeronautics and Space Administration's (NASA) Project Constellation. The rockets are planned to re-use as much hardware and facilities from the Space Shuttle program as possible. ==DIRECT proposal== (詳細はSpace Shuttle External Tank with a pair of standard four-segment Solid Rocket Boosters (SRBs) mounted at the sides as on the Space Shuttle. Up to four Space Shuttle Main Engines (SSMEs) from the Space Shuttle Orbiter would be attached to the bottom of the tank and would be deorbited to burn up in Earth atmosphere along with the expended tank. For heavier payloads a proposed Jupiter Upper Stage (JUS) would be added atop the tank structure. For extra-planetary expeditions, the JUS would serve in a role similar to the Earth Departure Stage planned for Ares V. DIRECT have purposefully specified existing components for their launch vehicles, but contend that they could incorporate improvements such as the more powerful five-segment SRB or the J-2X upper stage engine, had the J-2X development not ended partly due to the cancelation of the Constellation program. Crews would be carried atop the launch vehicle in NASA's planned Orion Crew Exploration Vehicle, itself topped by the planned Launch Abort System. Cargo, whether carried under Orion or alone on a cargo-only launch would be enclosed by a payload fairing. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jupiter (rocket family)」の詳細全文を読む スポンサード リンク
|