- Sep 15, 2009
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That is a 1970's Estes or Vashon cold power engine. It's designed to utilize R-12 Freon as a compressed gas propellant. Currently, there are no known equivalent substitutes, but a few people have found some "acceptable" substitutes. I'm currently working to try to build and launch one of these myself.
Very few people will even bother with these now days. I'm kind of a glutton for punishment. I may find that I waste a lot of time and get very disappointing results.
If you decide you want to part with it, let me know. I'd buy it just to add to my ability to experiment farther.
Kruegon... Chill! Those rockets were cool (except for the ozone layer eating part). Once that was discovered, sales just froze.What did I do? Start a cold power revival? Not complaining, just interesting.
Burn ban? We don't worry about no burn ban. Our rockets are cool. Down right cold. Ok cold powered anyway.
I built and flew the Estes Shark cold power rocket around 1973-74.
Three flights. First time worked as advertised. Cool....literally!
Second and third flights, the little rubber bumps that were suppose to deflate and allow the spring to eject the chute must not have worked, as there was no chute ejection. Been a while, but seem to remember that it was very humid and the model was getting frosted around the motor area, perhaps enough to interfere with ejection.
Rocket got shorter each time.
Put it on the shelf and went back to normal Estes motors. The cold power unit disappeared over the years.
Leo (IINM) splits his time between the US, and Germany, he may have resources not available to the US.Ok. Things are looking up. I have a lead on a possible propellant. Leo shows one that looks nearly perfect, however, I cannot seem to locate that brand anywhere. I'm going to have to investigate the other I found.
Next I need to figure out a fueling method, possibly. The fueling valve they supply does not seem like it would connect to modern propellant canisters. I could be wrong and I seriously hope I am. A quick test will fill in the questions.
It's not worth it to end up spending so much cool cash, and ending up in the cooler for over 2 years.Actually the EPA fines can be up to $37,500 if the .pdf I read from EPA is applicable to an individual releasing R-12 to the atmosphere, it was targeted at people maintaining/working on refrigeration systems mainly but who knows what using it for a cold powered rocket would constitute. One guy got a 20k-something fine and 31 months in prison for venting R-22.