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Model Forum / General / Rockets / April 2008Centuri Engineering Company & Liquid propellant models
O.K. First my spam. It will taste good, though, if it's something you want... I'm letting my 1973 Centuri catalog go and thought someone here may be interested. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=270227688032&ssPageName= STRK:MESE:IT&ih=017 Now, my question; Are there any liquid propellant models in kit form being offered today, similar to the old Vashon Industries rockets? Thanks, Ricky > O.K. First my spam. It will taste good, though, if it's something you > want... [quoted text clipped - 7 lines] > Thanks, > Ricky Nothing that I am aware of. You might try a google search. Every once in a while, one of the old Vashon/Estes versions shows up @ auction. Problem is the propulsion system is frion gas based and is no longer available or legal to produce. Fred Not necessarily so, Fred. Freon, or R-12 refrigerant, is available to trained techs. But you have to have a MACS card to buy it, and there's a $50,000 fine for deliberately releasing it or any other refrigerant into the atmosphere. J >> O.K. First my spam. It will taste good, though, if it's something you >> want... [quoted text clipped - 14 lines] > > Fred > Not necessarily so, Fred. Freon, or R-12 refrigerant, is available > to trained techs. But you have to have a MACS card to buy it, and there's a [quoted text clipped - 23 lines] > > - Show quoted text - That is a "BIG FINE" !!!! For model rocketry, illegal to produce and use, period, as it falls under, "deliberate release". Many chemicals are regulated, with specific use restrictions. I guess I wasn't clear in my previous response; should be clear now. > Not necessarily so, Fred. Freon, or R-12 refrigerant, is available > to trained techs. But you have to have a MACS card to buy it, and there's a [quoted text clipped - 4 lines] > > "W. E. Fred Wallace" <frederocket@boe.com> wrote in message > >> Now, my question; Are there any liquid propellant models in kit form > >> being offered today, similar to the old Vashon Industries rockets? [quoted text clipped - 7 lines] > > > > Fred > > > Nothing that I am aware of. You might try a google search. Every once in > > > a while, one of the old Vashon/Estes versions shows up @ auction. > > > Problem is the propulsion system is freon gas based and is no longer > > > available or legal to produce. > > > > Fred Darn... now we know where the hole in the ozone came from - all those Vashon rockets launched in the 70's. ;) Doug >Now, my question; Are there any liquid propellant >models in kit form > being offered today Not sure if this is what you meant, but System Soliare have been round a while now - Only ever seen one over here but they are a US based company Damian  SignatureDamian Burrin UKRA 1159 Level 2 RSO http://www.ukrocketry.com http://www.larf-rocketry.co.uk LARF - Putting the amateur back in rocketry!! > >Now, my question; Are there any liquid propellant >models in kit form >> being offered today [quoted text clipped - 3 lines] > > Damian System Solitaire uses gasoline as fuel and dry ice to pressurize, IIRC. The old Vashon/Estes 'cold power' rockets weren't ignited. The pressurized freon was simply expelled through the nozzle. They were neat, but the "ignition system" and recovery delays left a little to be desired. I still have mine, and was told a few years back that butane would probably be the most reasonable thermodynamic substitute for freon. No thanks, I'll just leave it in the box. Tim |
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