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frank-margie(at)worldnet.
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 Posted: Mon Jan 30, 2006 8:27 am Post subject: Hexadyne Engine |
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They talk about that development time in the article; they deliberately took a conservative approach. It would be interesting to hear from people who have the pre-production engines---in addition to the Kolbs, there are a number of other airframes out there with them. I very much agree with you, but I'm also real glad to see alternatives like this being developed; I think we all stand to gain from it. The engineering on this one looks very promising.
Anyone out there know anything about those pre-production units?
Frank Clyma
do not archive
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They have been developing this engine for years. At least 4 or 5 I believe. I would
be nervous about buying one until they had a track record and financial stability
with the company.
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frank-margie(at)worldnet.
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| Posted: Tue Jan 31, 2006 4:17 pm Post subject: Hexadyne Engine |
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"I got a chance to meet Cy Williams (President and Chief Engineer) at Copperstate,
last October. He gave a talk about his engine in the CONTACT booth. I had also
seen it at Oshkosh more than once and a friend tried his engine on a Mark
III that was used for towing hang gliders."
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John,
The crankcase pressure problem supposedly has been solved with a dry sump oil system. "The scavenge pump does double duty in that it also functions as the crankcase ventilation, actually providing a slight negative internal crankcase atmosphere." (Sure sounds good----)
What did your friend think of the one on his Mark III?
I doubt anyone would pay $8800 to be an official engine tester, I wonder what they actually did pay. Like you said, it has to be hard for a small company to develop a viable unit. Which is probably why most of the engines "in development" never make it. I hope this one does.
Frank Clyma
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