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Shuttle SRB's

  • 14-06-2011 1:28am
    #1
    stoneill
    Registered Users, Registered Users 2 Posts: 3,609 ✭✭✭


    There are some good video's available of the SRB's life during launch, jettison and splashdown. Just a few seconds before the SRB's hit the water something is separated from the bottom of the SRB, some ring shaped object.
    I'm thinking it might just be a cowl that could damage the SRB if left on at splashdown. Anyone know for sure?


Comments

  • #2
    Beeker
    Moderators, Science, Health & Environment Moderators Posts: 3,645 Mod ✭✭✭✭Beeker


    stoneill wrote: »
    There are some good video's available of the SRB's life during launch, jettison and splashdown. Just a few seconds before the SRB's hit the water something is separated from the bottom of the SRB, some ring shaped object.
    I'm thinking it might just be a cowl that could damage the SRB if left on at splashdown. Anyone know for sure?
    Thats the nozzle extensions. Solid propellant rockets are particularly difficult to maintain nozzle shape as they dont have a simple way to build the nozzle. This leads to a large and heavy nozzles on all solid propellant rockets. On the SRBs this is a problem since the SRBs are desinged to be reusable. NASA adds what they call a "nozzle extension" to the SRBs which is not reused, so they are simply jetisoned.


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