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Old 02-26-2017, 09:09 AM   #12
thrash
 
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Join Date: Aug 2004
Location: traveller
Default Re: [Space, Spaceships] Armor needed for Aerobraking/Re-entry

Drag for aerobraking is most efficient from blunt rather than streamlined surfaces. A flat plate perpendicular to the airflow has a Cd ~ 2.0. SMAD III (p. 145) recommends 2.2 for a generic satellite.
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