Test 2017-03
3 grain 54mm sorbitol motor burned on the test stand at a Tripoli Colorado launch in Hartsel on 21 May 2017.
With a 10.250" liner, 8.9mm nozzle throat, buna-n o-rings, simulation says this is a 25% J-432, 763 Ns, with about a 1.6 sec burn:
| 54mm 3-grain Sorbitol | |||||
|---|---|---|---|---|---|
| Rating: | 25% J-432 | Max Pressure: | 7.04 MPa (1021 psi) | ||
| Total Impulse: | 763 Ns | Specific Impulse: | 135 s | ||
| Max Thrust: | 557 N | Volume Loading: | 71% | ||
| Average Thrust: | 432 N | Fuel Mass: | 578 g | ||
- Grain 2017-01-01, 176.1g gross, ?g net
- Grain 2017-01-03, 187.6g gross, ?g net
- Grain 2017-01-10, 190.3g gross, ?g net
Results
Good data collected. Also a more regressive looking burn than expected. Still had slag accumulation, but was much easier to clean up thanks to grease in the forward closure pressure port.
Flight data logged as TeleFireOne sn 3634, flight 4.