[net.space] Redesign booster seals?

fisher@star.DEC (Burns Fisher ZKO1-1/D42 DTN 381-1466) (03/04/86)

Newsgroups: net.space
Path: decwrl!decvax!bellcore!ulysses!mhuxr!mhuxt!houxm!ihnp4!stolaf!mmm!allen
Subject: Re: Soviet permanently manned station.
Posted: 26 Feb 86 14:39:54 GMT
Organization: 3M Company, St. Paul, Minn.
 
Kurt Allen writes: 
>	Aviation Week and Space tech. reported that NASA hopes to
>	keep the Hubble telescope as near to schedule as possible. That
>	announcement occured before the decision to redesign the SRB
>	seals was announce, which will probably take around a year.
> 

What decision to redesign the SRB seals?  Has anyone else heard of such
a decision?  Perhaps it is a good idea, but I certainly have not seen it!

Burns

...decwrl!rhea!star!fisher

caf@omen.UUCP (Chuck Forsberg WA7KGX) (03/05/86)

According to Mar 3 AW&ST, the following changes may be made to the SRBs:

Add high strength bolts in thr area of the 177 pins joining the segments

Catches similar to joints on the new composite SRB's

Changes in insulation putty

Improved O-ring seals, possible the .291 in diameter seals used in the
composite SRB's, permanently sealed.

External band heaters


According to Mulloy, there are 829 Criticality 1 items on the shuttle,
including 213 on the SRB system.

Could somebody from Nasa post some of that list?