Tim Haynes <t...@dodo.com.au> wrote: Hi Guys
I have had a good look at Marks Corvair Engine information. Other than cost what is the advantage of using the Corvair 2700 100 hp (realizing they can be developed to put out more power) over the Rotax 100 and 115hp which are a both much lighter engine. 62.6kg and 70kg respectively. Regards, Tim t...@dodo.com.au Hi Tim, Remember that ADVERTIZED weights are sometimes decieving. If you want good information about the Corvair option go to William's site and read the whole thing. William is the kind of guy that gives you a blanced view of the product he is advocating. From what I've read from him and what I've heard from others he is a man of integrity. Why is that important? Well because alot of people say alot of things to sell you something, and in the end the product is not all that it was hyped to be. Can you get 100 HP from a lighter engine? Yes. The bottom line is that it will cost you THOUSANDS of dollars more than the Corvair. If money is no object by all means get a certified engine. Bill Clapp has a top speed of 170, Mark L, is getting about the same. Joe Horton is posting some great numbers as well. The only thing that gives me pause is the reliability factor of the Corvair in the KR2 application. There have been some crank failures recently in KRs. William and others have been studying and testing to find out the reason for these failures, and from what I've read nitriding the cranks may be the the thing that brings a higher reliability factor to the engine. William has now reccomended not flying a corvair without nitriding. I figure that by the time I get to the Corvair stage of my project, there will be enough guinea pigs flying, that I will have enough data to make the engine decision final. As for now I'm still going with the Corvair. At TBO the Corvair is also a low cost rebuild compared to others. Hope this helps. I am not a engineer, machinest, mechanic, and have a low I.Q. :) Here is a link to Williams site http://www.flycorvair.com/index.html Ron Smith Kr2ssxl Cypress Ca U.S.A. mercedesm...@yahoo.com http://ronsmith.myphotoalbum.com/albums.php --------------------------------- Yahoo! Mail Use Photomail to share photos without annoying attachments.
