Douglas Fir wrote:

HI Paul,

I got to fly in the SeaWind finally. Great experience and a very stable
craft. I must be the only builder of a SeaWind who had a demo ride 4 years
after he purchased the kit.

Of course I noted some data on airspeeds and fuel burn to get an idea of
range and more importantly the HP required.  Here is a link to a commentary
that all will enjoy. The author disputes the advice Lycoming is given about
running LOP.

http://www.avweb.com/news/columns/182131-1.html

My rebuild kit should arrive in June so I can get busy on the engine.  I'm
presently working on an original designed landing gear.

Doug in Japan

Your Lycoming warrantee is void if you run LOP.

BTW Doug, if you see a cute Mazda RX8 TV add in Japan could you capture the video.
I would like to add it to my collection on my new web site below,

Paul Lamar

David Staten wrote:

Would you mind providing the documentation that backs up that claim of warranty denial? How would they KNOW if you ran rich (or lean) of peak? Especially if from a scientificly proven standpoint
that Rich of Peak is actually hotter/harder on the engine?

Dave

I don't have it. It was told to me by a Lycoming rep at Reno.
Of course they would not know if it was something other than a burned
exhaust valve or melted cylinder head.


By definition "peak EGT" is the hottest EGT. How can anything be hotter than the hottest?
This is not opinion. This is fact.

Rich of peak EGT cools the engine and lean of peak EGT cools the engine as well.
There is no doubt what so ever that the hottest EGT is harder on the exhaust valves 
and the aluminum cylinder heads. This too is fact and not opinion.

Paul Lamar
 
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