this probably has been mentioned, but standard jet engines run on kerosene, so biodiesel should work fine....
Steve Spence Subscribe to the Renewable Energy Newsletter: http://www.webconx.com/subscribe.htm Renewable Energy Pages - http://www.webconx.com Palm Pilot Pages - http://www.webconx.com/palm X10 Home Automation - http://www.webconx.com/x10 [EMAIL PROTECTED] (212) 894-3704 x3154 - voicemail/fax We do not inherit the earth from our ancestors, we borrow it from our children. -- ----- Original Message ----- From: "Alan S. Petrillo" <[EMAIL PROTECTED]> To: "biofuel" <biofuel@yahoogroups.com> Sent: Friday, August 17, 2001 1:19 PM Subject: [biofuel] Diesel aircraft engines > "F. Marc de Piolenc" <[EMAIL PROTECTED]> wrote: > > > > Many German aircraft of 1930-1945 were powered by the Junkers "JuMo" > > opposed piston two-stroke diesels in various sizes, with and without > > turbo-supercharging, including the Ju88 high altitude, high speed > > bomber. These were liquid cooled. > > That's the design which Diesel Air based their design on. > > > Oddly enough, though the Deutz > > aircooled diesels have done well on the ground, the only aircooled > > aircraft diesels I know of are the Packard and Guiberson engines, both > > technically successful but neither successful in the market. > > I talked to a gentleman in Fort Walton Beach, Florida some time ago who > had a prototype for a German diesel radial engine, which was designed in > Germany early in WWII, and given to Deutz for development. It had > several innovative features, like a "knock off" hub for the propeller. > I lost contact with him, though, and he seems to have dropped out of > sight. > > Lycoming also had a diesel design in the late '40's and early '50's, but > it was underpowered and not a commercial success. > > > The Packard > > was used in setting an endurance record in the "Question Mark," though. > > Interesting. I'll have to look that up. > > > The first Pratt and Whitney turboprop powerplant was also an opposed > > piston diesel in a sense - the PT-1 used a free-piston gas generator > > operating on the Diesel cycle to provide hot gas to the propulsion > > turbine. > > I remember reading something about that. I've never properly understood > the free-piston design concept. > > > Recently, Renault was supposed to be working on an aeronautical diesel > > plant, but I have no further info. > > That has since been spun off into SMA. > > > Zoche in Germany seems to have failed > > to achieve certification. > > Alas. And they probably never will. Unfortunately. Their engine > design is my favorite, but I seriously doubt we'll ever see it come to > market. It _could_ have been on the market at least 5 years ago, but > like I said in previous email, Georg's Money Machine. > > > A friend of mine did a preliminary design study on a long-endurance > > personal aircraft using two converted VW Rabbit (Golf) diesels - the > > numbers looked very nice. Then we both got involved in other things. I > > still have the notes on file. > > I'd bet the folks on rec.aviation.homebuilt would be interested in them. > With VW's new TDI engines you could probably make a really nice little > long endurance homebuilt. > > > Basically, though, diesels make good sense > > for low speed, long endurance aircraft. > > Indeed. Low and slow will always be the realm of pistons and > propellers, barring some kind of major revolution in technology. > > > Alan > -- > Aviation is more than a hobby. It is more than a job. It is more than > a career. Aviation is a way of life. > A second language for the world: www.esperanto.org > Processor cycles are a terrible thing to waste. www.distributed.net > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > Please do NOT send "unsubscribe" messages to the list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
