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SRB Return to Flight Activities

This article provides an overview of the return to flight activities for the Solid Rocket Booster (SRB) project, with a focus on the Bolt Catcher Assembly and External Tank (ET) separation. It discusses the NASA Standard Initiator (NSI) pressure cartridge, O-rings, and other components involved in the separation process. The article also mentions the instrumented bolt catcher drop test fixture and the booster separation motor igniter. Key topics include the igniter case, propellant, igniter adapter, and graphite throat liner closure. It also addresses the BSM igniter grain bevel and igniter retainer designs, and the issue of erratic pressure traces.

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SRB Return to Flight Activities

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  1. SRB Return to Flight Activities David M. Martin Solid Rocket Booster Project Manager

  2. ET SRB SRB ET Bolt Catcher External Tank Separation Plane SRB ET/SRB Forward Attach Area BOLT CATCHER ASSEMBLY

  3. NASA STANDARD INITIATOR PRESSURE CARTRIDGE Forward Separation Bolt Pressure Cartridge NSI O-ring NASA Standard Initiator (NSI) Pressure Cartridge Body O-ring

  4. INSTRUMENTED BOLT CATCHER

  5. DROP TEST FIXTURE

  6. BOLT CATCHER ON FIRING FIXTURE

  7. BOOSTER SEPARATION MOTOR IGNITER Case Propellant Igniter Exit Cone Igniter Adapter Graphite throat Liner Closure BSM Cross-section Igniter Case BKNO3 bags Igniter Rod Igniter Retainer Igniter Propellant Grain BSM Igniter Cross-section

  8. Erratic Pressure Traces Nominal Pressure Trace BSM IGNITER ERRATIC PRESSURE ISSUE

  9. IGNITER GRAIN BEVEL

  10. IGNITER RETAINER DESIGNS

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