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ROTON type engines and liquid monopropellants
On Oct 23, 4:12 am, Jim Davis wrote:
Earl_Colby_Pottinger wrote: I would just like to point out that I am not just asking about ROTON type system for no reason. I am planning to build a test model over the next month or two. Earl, You might want to ask on the arocketry mailing list: http://www.arocketry.net/ A number of former Rotary Rocket employees post there. Jim Davis The person you want is Bevin McKinney, he designed the original Roton engine. These days he works HMX together with Gary Hudson (designer of the Roton vehicle). Their website is at http://www.hmx.com/. Bevin's email is zerog(at)centurytel(dot)net He's a very nice guy and won't mind at all if you contact him . Ralph --- Dream of Space? Help Make it Real. www.open-aerospace.org |
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ROTON type engines and liquid monopropellants
On Oct 24, 8:11 am, RalphE wrote:
The person you want is Bevin McKinney, he designed the original Roton engine. These days he works HMX together with Gary Hudson (designer of the Roton vehicle). Their website is athttp://www.hmx.com/. Bevin's email is zerog(at)centurytel(dot)net He's a very nice guy and won't mind at all if you contact him . Thank you for the email address, I am on a trip to Florida next weekend so it probably will be a while before I can email him. At the present moment I am having problems finding a supplier of silver mesh (the company I dealt with before no longer handles it), and I am looking into other designs that can use silver wire available for local jewerly supply companies. Presently, based on some research I have done it looks like I can make 90% H2O2 breakdown using only the heat generated by it's own decompostion to keep the engine running, but the time this takes requires a total mean path of over 14 inches. (URL to PDF to supply later). This I intend to do by making the entire rotor arms into a regenative motor designs, meaning the rotor needs to 18 inches in diameter.. I will post more after I find out how hard it is to get the silver that I require. |
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ROTON type engines and liquid monopropellants
On Sunday, September 6, 2009 at 2:38:45 AM UTC+1, Earl_Colby_Pottinger wrote:
I was just thinking about monopropellants. Most have low ISPs compare to bi-propelleants but can be very dense. ie Peroxide/Alcohol mixes for example. Since ROTON type engines are self-pressuring, one can build a system with very light weight tanks and high expansion ratio engines. Could the mass ratios of such a design lead to a reasonable TSTO rocket? Earl Colby Pottinger |
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