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#17
January 20th 10, 08:04 PM
posted to rec.aviation.homebuilt
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BMW engine for ultralight
On Jan 17, 6:32*am, Ralf Mueller wrote:
Stealth Pilot wrote: I looked into this a while ago. there are no engines available as spares so the only way of obtaining one is to buy a bike and throw away the frame. the bikes cost $33,000 australian dollars a jabiru engine is less than half that and it was designed as an aircraft engine. does that make any sense to you? Stealth Pilot German ebay lists quite a few for reasonable price:http://cgi.ebay.de/Motor-BMW-R-1100-...ne-TOP_W0QQite... ... If I'm not mistaken, those are all BMW "OilHeads" as opposed to the older "AirHeads". One nice thing about either is that parts are still available. The Airhead engines are a LOT simpler (aircooled 2 valve pushrod), but make less horsepower. They may well be lighter too. I weighed one of my R100 engines many years ago, I think it came in right around 100 pounds without the exhaust system. I don't know what they 'claim' for HP, but it isn't much. 
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