Since the beginning of the Space Shuttle Reusable Solid Rocket Motor (RSRM) program, nozzle-to-case joint polysulfide adhesive gas paths have occurred on several flight motors. These gas paths have allowed hot motor gases to reach the wiper O-ring. Even though these motors continue to fly safely with this condition, a desire was to reduce such occurrences. The RSRM currently uses a J-leg joint configuration on case field joints and igniter inner and outer joints. The J-leg joint configuration has been successfully demonstrated on numerous RSRM flight and static test motors, eliminating hot gas intrusion to the critical O-ring seals on these joints. Although no flight safety issues have been identified with these gas paths, elimination of this condition was desirable. This paper discusses the processes used in reaching a final nozzle-tocase joint J-leg design, provides structural and thermal results in support of the design, and identfies fabrication techniques and demonstrations used in arriving at the final configuration.
RSRM Nozzle-to-Case Joint J-Leg Development
2003
14 pages
Report
No indication
English
RSRM Nozzle-to-Case Joint J-Leg Development
AIAA | 2003
|RSRM Nozzle-to-Case Joint J-leg Development
NTRS | 2003
|'Wormhole' formation in RSRM nozzle joint backfill
AIAA | 2000
|