|Nov 01, 2013, 10:47 PM|
Using HTP as fuel
I've been launching KNO3/Sugar rockets for a while, and having a lot of fun with them, but I'm getting to a point where I'd like to have a greater degree of control. I've got some experience using arduino to fly semi-autonomously and fully autonomously with FPV airplanes, and I think I can script something for a liquid rocket at this point.
Since liquid fuel rockets are usually pretty complicated and dangerous, as well as the pain associated with creating/storing LOX, it's pretty natural that you don't see many hobbyists using them. 80%+ Hydrogen Peroxide (HTP), on the other hand, is a bit less of a hassle, from my understanding. There's no "burning" in the conventional sense, since it's decomposition, and the heat is low enough that you don't have to worry about turning a nozzle into goo. Now, it's not the most efficient stuff - the max Isp ratings are in the mid 100's, but being able to have throttle ability would be huge. The pluming pretty much consists of a pump that could be run by a LiPo battery, and a valve that could be operated by a servo to control the amount of HTP coming into contact with the catalyst bed.
I realize that HTP is bad news for skin burns, etc, but I think if this could work reliably, it would be worth investing in the safety equipment/training to handle this stuff
What do you guys think? Is it worth a try, and/or has anybody tested this idea before?
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