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On Orbit => Real NASA Space Shuttle Missions => Topic started by: FAAmecanic on December 20, 2009, 01:07:15 AM

Title: Why did STS 121 launch before 116?
Post by: FAAmecanic on December 20, 2009, 01:07:15 AM
Just noticed the STS 121 actually DID lift off on 07/04/06  and STS 116 was 12/09/06...  looked it up on NASA website and that is true.

So does anyone know why NASA had STS 121 lifting off prior to STS 116?   Was it a maintenance thing where some of the Shuttles were being maintained/modified and lifted off at a later date maybe?
Title: Re: Why did STS 121 launch before 116?
Post by: davidrobinsonjr on December 20, 2009, 04:35:12 AM
After the Columbia accident, NASA needed two flights to test all the return to flight items. They needed to sandwhich an extra flight between STS-114 and 115 which were allready scheduled  and the picked the next available flight number: STS-121.
Title: Re: Why did STS 121 launch before 116?
Post by: FAAmecanic on December 20, 2009, 05:08:10 AM
Ahhh...had a feeling it was a scheduling thing.  Just lost sight of why there was that gap  (shame on me...  :'(  )

Thanks.
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