4th March 2017, 02:42 PM
4th March 2017, 07:38 PM
I'm wondering what people are doing with GSE. I read a thread discussing hybrid testing for TMT and one issue people mentioned is time at the pad. I never took all that long, connect fill line, connect igniter, continuity test. I'm just curious if there are gains to be had in that area.
Another is fill time. It's not bad for 38/54 but I could see it being more significant the larger you get. Could using servo controlled plug valves work here? It would likely cost less than a similar sized solenoid valve. Larger diameter fill lines?
Assuming some distance from the solid pads, is it dangerous to launch solids while waiting for hybrid fills?
5th March 2017, 12:19 AM
Regarding fill lines and time, your bottleneck is typically the orifice drilled in the CGA-326 or CGA-660 fitting on your bottle. You can't get nitrous out of the tank faster than right there.
6th March 2017, 07:23 AM
I've started what's going to be a long thread on THRP-1 in the Research subforum. I'm putting essentially all the details there, and why I made the choices I made.
7th March 2017, 06:22 AM
How do you get access to the research subforum?
7th March 2017, 08:43 AM
7th March 2017, 09:19 AM
looks like ill have to get a green card first...
13th March 2017, 02:37 AM
Last edited by AlphaHybrids; 13th March 2017 at 06:51 PM.
20th March 2017, 11:50 PM
Another image of a tribrid. This one has a peak thrust of 400 pounds.
21st March 2017, 04:17 AM
That's a great looking shot!
22nd March 2017, 06:38 PM
Looks like it should be a poster... Nice!
22nd March 2017, 07:14 PM
Is your test stand permanent, or do you transport it?
22nd March 2017, 08:13 PM
Gerald - March-ish through October-ish the stand is outside with ~2,000 lbs of bricks for counterweight. It also has stakes to help stabilize it. The winter months it goes to a small shed just to keep it out of the weather. The load cell is kept covered in the summer and removed in the winter.
24th March 2017, 05:36 AM
THRP-1 motor is assembled, ready for static test this Saturday at Battle Park.
24th March 2017, 11:37 AM
That looks awesome! Looking forward to the report.
"He who fights with monsters should look to it that he himself does not become a monster, and if you look long into an abyss, the abyss also looks into you." - Friedrich Nietzsche
"The Future is Not Solid" - Korey Kline
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