54mm 4000 Ns Complete Motor

Comes with Extented Bulkhead, 2-turn spiral retaining ring (aft end) and a modified standard snap ring (head end).

Bulkheads are capable of head end ignition inside the 1.875" long smoke well. Single use phenolic/graphite nozzles are included with the L-2050-LW and M-1378-LR reloads and sold seperately for experimental use. Total propellant length is approximately 41.92". Pictured below the 38/1200 hardware.

The bulkhead extends approximately 1.78" from the end of the case and measures 45.105" from the front of the thrust ring to the top of the bulkhead.

 ;;;

Whitney Richard holding an early version of the 54/4000 hardware ready for flight in a long, 3" fiberglass tank to over 14,000 feet.

And here is that flight.