Sky Ripper Systems 54mm Assembly Instructions
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@MrMoscvich BTW, I have no experience with hybrids, I was only interested in them for awhile. Take my advice to have a worth of about what you paid for it. :-D Good luck!
Longway2fall 10 months ago
@MrMoscvich It has been awhile since I watched this video! I am almost certain the way it works, is that the high pressure NOx is supplied via the plastic tube running up the nozzle, fuel grain, and into the oxidizer tank. The entire system, tube included, is under pressure at launch time. The ignitor is fired, which starts the ignition of the fuel grain, and burns the tube, releasing the NOx right onto the burning fuel grain, and bam you have ignition! The tube, ignitor, all burn up.
Longway2fall 10 months ago
@Longway2fall If you could please answer, I still don't understand how the fill stem is supposed to function during the launch e.g. how is it supposed to supply the NOx to the fuel grain if it's a tube that runs down and out of the engine itself, and is the igniter wire supposed to fly with the rocket as well, since it's attached to the fill stem, or is there something I'm missing?
MrMoscvich 10 months ago
They talked about selecting the oxidizer nozzle earlier, at 0:38. It gets installed into what looks like a brass fitting, which is installed into the bulkhead at the top of the combustion chamber. The N2O is put into the top half of the motor case, they installed the top bulkhead which has a vent for filling at the very end. Hope this helps
Longway2fall 2 years ago
so... you have the fuel grain, where is oxidiser? and which and is the nozzle end again? Also its quite hard for a beginner to follow when the video keeps cutting to different camera angles. Where is the valve to regulate the flow of oxidiser into the combustion chamber?
tomcornwall83 2 years ago