It's ok I see in the tech info for the atlas centaur stage, the fuel dump is part of the Collision and Contamination Avoidance Maneuver (CCAM). It say's Blowdown As part of the CCAM, hydrogen and oxygen are expelled through the engine system to safe the vehicle and to further increase upper-stage/spacecraft separation distance. Hydrogen is expelled out the engine cooldown ducts and oxygen is expelled out the main engine bells. Kevin __________________________________ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced search. http://info.mail.yahoo.com/mail_250 ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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