Test 2017-02

4 grain 54mm sorbitol motor burned on the test stand at a Tripoli Colorado launch in Hartsel on 21 May 2017.

With a 13.250" liner, 8.9mm nozzle throat, buna-n o-rings, simulation says this is a 39% J-597, 1050 Ns, with about a 1.5 sec burn

• Grain 2017-01-16, 189.1g gross, ?g net
• Grain 2017-01-04, 185.8g gross, ?g net
• Grain 2017-01-07, 186.7g gross, ?g net
• Grain 2017-01-15, 186.9g gross, ?g net

Results

We forgot to remove the protective stop, so no useful load cell data was collected. Pressure data looks fine, and shows a burn that's more regressive than expected. There was significan slag accumulated on the forward closure and in the pressure line. For the future, we'll pack grease in the forward closure explicitly when building motors for test stand burns.

Flight data logged as TeleFireOne sn 3634, flight 3.