Thread: Model Rockets
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Old 22-12-2016, 10:23 AM
clive milne
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clive milne is offline
 
Join Date: May 2011
Location: Freo WA
Posts: 1,443
Quote:
Originally Posted by sharpiel View Post
Clive that's all pretty impressive. The liquid fuelled motor most of all. Do you still have it anywhere?
Not anymore... that was like 30 odd years ago.

fwiw) The combustion chamber was machined to include a labyrinth of cooling channels. The idea was to run the fuel up and around the combustion chamber (counter-flow) before entering the top of the engine in an attempt to keep it cooler.

I pressured it up a couple of times with water and compressed air which made for a pretty impressive spectacle even without flame. Looking back on it if I am to be honest with myself, I guess part of the reason I didn't pursue it further was a sense of self preservation. You look at the quantity and energy of the stuff exiting the business end, then make the intuitive guess of what that would look like as a product of combustion... Some tiger tails are best left un-tugged.

At the time, I was also into building steam engines, so that was my main focus anyway.

Last edited by clive milne; 22-12-2016 at 02:11 PM.
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