Test 2019-3

Re-starting the process of characterizing "Everclear" now that we have a new 1600psi pressure sensor on the test stand.

This was a 2-grain 54mm Everclear motor using a #24 nozzle. Ignition was with one of Terry's igniters, on Saturday at the Tripoli Colorado Spring Fling event near Hartsel.

The grains used were from the 21 May 2019 batch:

• 21 May grain 4
• 21 May grain 12

Small profile o-rings were used between grains, leaving the grains still slightly "loose" in the case. The buna-n o-rings on the nozzle and forward closure were lightly greased, and the liner exterior was heavily greased.

Results

Test stand data in 2019-05-25-serial-3634-flight-0029.eeprom.