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Scott Dahlgren was commenting on the intake air filter and, apparently
more agree that it's possibly a disaster waiting to happen than you
know. When the factory pilot (Mike DeHate), who did the first flight and checked me out in my plane did his inspection, one of the first things he told me was to remove the foam I had installed as a intake filter per the manual. He said I could put it back in later if I wished but it shouldn't be there while he was dealing with a brand
new airplane. I think he was afraid it would come apart and clog the
carburetor throat. I figured that if he didn't want it in there, neither did I - so I've never put in anything (other than the elephant filter mentioned in a post yesterday which originally supported the aft side of the foam).
There are quite a number of Lancairs flying in this area that use no filter. Even so, I'm not entirely comfortable running without one. Since I'm planning to install a new cowl eventually, at that time I will try to figure out how to get a filter in there. Some preliminary doodling gives me hope that I might be able to use one that Rutan
recommended for the LongEZ, a NAPA #2904 (equiv. Purolator #AFP-177
or AC #44-8C). It'll be a challenge, but what else is new?
Incidentally, I have always had an oil analysis done at each oil change and silicon content (dirt) has been listed as "normal". Go figure.

Dan Schaefer
N235SP


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