Sustainer electronics bay bulkhead with ARRD, ejection charge holder and recovery system attqachment points

Strakes and fins

Copper tubes for interstage connection

Rear bulkhead on 75mm motor mount tube for sustainer

Sustainer motor mount

Copper guide tubes test fit on interstage

Strake alignment and gluing guide

Strakes

Strake alignment and gluing guide

Strake and fins lined up

Interstage test fit

Fillets

Completed sustainer

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