hi Mark the engine at 3200 rpm will have a prop rpm of about 2000. The engine is able to go to 4200 the reduction drive is 1.6:1 I was going to use a 58x 70 cheers Ross
>From: "Mark Langford" <n5...@hiwaay.net> >Reply-To: KRnet <kr...@mylist.net> >To: "KRnet" <kr...@mylist.net> >Subject: Re: KR>propellors for 100hp+!!! >Date: Mon, 8 Dec 2003 12:04:40 -0600 > >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 > > >_______________________________________________ >see KRnet list details at http://www.krnet.org/instructions.html _________________________________________________________________ Hot chart ringtones and polyphonics. Go to http://ninemsn.com.au/mobilemania/default.asp
