Repeat of flight size motor. February-2012


Work

What to do when spring weather appears.... fire a rocket motor of course!
This is just a repeat of the static test of the flight configuration motor.

  • Stats:
  • Result: 9.3 Second M-625



    Tweaks

    A few tweaks were made to the ignition process, but they were minor.

    The aluminum foil on the nylon fill line was replaced with a fireproof sleeve from McMaster. (part #8819K44) Second, the nylon loops on the outter injector ring were shortened from a 2ft 'U' to 2in plugged stubs.


    Test Stand Video


    Love that alternate camera view!!




    Test Stand Data - M-625, 9.3 Second

    I believe the dual plateau thrust curve is due to burning white PVC during the first half and the burn, and gray PVC in the second half. I think I prefer the higher regression rates so I may try to find a supply for gray 2" pipe.




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