Sunday, October 25, 2009

2.375" Motor Updated


I changed the design again. I decided to optimize the it for KNER propellant by adding two additional segments. The additional propellant brings the motor up to a solid L-class motor and the chamber pressure sims. at right about 1000psi. I'm hoping to have an opportunity to test fire it for the first time in early December
Update: I updated the SRM output to correct a mistake. I had been using the wrong grain OD.

2 comments:

Ben Brockert said...

Do you fly at FAR or RRS? It'd be an interesting test to see.

Randy Dormans said...

Hey Ben,
I've tested at both. I tentatively set my goal for getting this test ready for the annual RRS Christmas party/launch which is usually the first weekend in Dec, though I haven't heard about this year yet.
I'll post the firing date when I know for sure. Good luck to you guys on the LLC flights this week!