Ross Evans wrote: > HI guys I am interested on what propellors are being used and what > performance they are giving speed and climb and inrealation to fuel > consumption I am using a type 4 engine from vw engine centre of 115 hp with > reduction drive and fuel injection
We're really going to need to know what the reduction ratio is (or the actual prop RPM at max power) to begin to answer this. Ground clearance is also a factor in permissible diameter. Still, there aren't many guys on this list that are already flying with 115 hp engines, so you might not actually get an answer. I can tell you that Steve Makish has a Corvair that's probably putting out right at 115 hp, and a 52 x 66 Sterba prop was too much for it. He's gone to a Prince P-tip of some sort, which I'll try to find out the specs on... Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford