It´s all about weight. It´s now about 5,6 kg (without fuel). After further weight reduction I hope to reach a total of 6 but not more than 6,3 kg. The engine provides 14,4kg of thrust at approx. 130.000rpm but is loosing about 45% of it passing the tubes.
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Beautiful clean design and excellent fabrication.
A design and engineering masterpiece, so blasted German.
In 1974 Garrett made the STAMP for the US Marine Corps -> http://www.flightglobal.com/pdfarchive/view/1974/1974%20-%200351.html
Given the technology of the time it is amazing that it actually worked at all let alone didn't kill anybody.
Yours look much better.
As seen in the STAMP it seems that expansion chambers might be useful to turn high velocity thrust and huge excess heat into cooler stronger static thrust.
I know that in real rocket motor design they often use very light weight "interesting" reinforced composites for the expansion bell with the proper design resulting in the hottest gasses pretty much staying away from the walls. (Of course they do have limited life spans.)
Absolute best of luck to you can't wait to see a picture of it in the air, (Video Everything)!
Yes! you´re right but this will come once I have the pressure/temperature ration established without blowing it all. That´s also why I need to have an automatization. I need to source out the temp control to the APM and regulate the engine accordingly. If you put bellmouthed nozzles directly it will give too much resistance which the engine must force. This would let increase the gas temperature. I allow the gas to expand and then go to the fine-adjustement. There will be also fresh-air inlets where the gas enter the gas divider at the engine. Let´s see what it will bring;) You´ll never get anything for free...
Even the power/weight relation always could be better I know it works. I made few small jumps long time ago as the engine was fresh and reached the max rpm. At this time I had around 1kg more weight and a misbalanced unit. A lot of people seems exactly to know it could not work from the paper. I say, f..k the paper - give me power!
I guess I will call it "Binford 6100"because what I need a lot of is MORE POWER!
You´re a lucky guy this time! I do not drink really much!
Are you going to call it Prometheus? Great job, can`t wait to see your test flights. Keep us posted!
Oh my god! This is pure epicness!
If you're ever in london, I will buy you all the beer you can drink.....
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