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Adapter (rocketry)

Inrocketry, an adapter is a hollow cylindrical^[1] or conical segment^[2] which provides a sound aerodynamic and structural connection, either between rocket stages (oftern referred to as an interstage) or between a spacecraft and the top rocket stage (referred to as a payload adapter). It may shroud and protect vulnerable systems such as electrics or machinery of rocket engines/spacecraft from weather or noise caused by running engines.^[3] It is discarded during staging.

Examples of rocket stages featuring an interstage adapter:

• Centaur (second stage of several Atlas-based launch vehicles, from Atlas-CentaurtoAtlas V)^[4][5][6]
• S-II and S-IVB (second and third stage of the Saturn V)^[7][8]
• The Interim Cryogenic Propulsion Stage (ICPS) of SLS Block 1 is connected to the Core Stage with the Launch Vehicle Stage Adapter (LVSA)^[9][10]

Examples of rocket stages featuring a payload adapter:

• (Planned) The Exploration Upper Stage (EUS) is expected to connect large secondary co-manifested payloads SLS Block 1B/2 using the Universal Stage Adapter (USA).^[11]

References[edit]

Sources[edit]

• Smith, John (2002-07-07). Evolved Composite Structures for Atlas V. Reston, Virigina: American Institute of Aeronautics and Astronautics. doi:10.2514/6.2002-4201.

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