It depends on the level of power you are using. Most of the rotary guys are getting about 13 gallons an hour at full cruise power with levels as low as 7-8 at economy cruise. They are very, very comparable with a 360, so close the difference is not appreciable. As for cooling, that is totally up the the builder and his install. Numerous studies have been done on thick rads/thin tall rads so the info is out there to make a decision on one's individual install.
As for the KR, by the time you add the reduction drive onto the front of a 13B it is going to quite heavy for a KR plus you are going to be pulling right at 200HP. The torque generated with the drives is probably going to be an issue with the short coupled KR. My my install it is the right choice but the KR may be an animal of a different color. Dana Overall 1999 & 2000 National KR Gathering host Richmond, KY i39 RV-7 slider, Imron black, "Black Magic" Finish kit 13B Rotary. Hangar flying my Dynon. http://rvflying.tripod.com/aero1.jpg http://rvflying.tripod.com/aero3.jpg http://rvflying.tripod.com/blackrudder.jpg do not archive >From: jehayw...@aol.com >Reply-To: KRnet <kr...@mylist.net> >To: kr...@mylist.net >Subject: Re: KR> Rotary >Date: Wed, 30 Jun 2004 13:00:09 EDT > >In a message dated 6/30/04 12:16:06 AM Mountain Daylight Time, >drup...@sympatico.ca writes: > ><< I'm putting a 13B in my KR. >> > > That was my first choice too, but I've seen posts > over the years saying they were gas hogs and it > was very difficult to get the cooling right for aircraft. > Have things improved? > > Jim Hayward > Rapid City, SD > >_______________________________________ >to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >please see other KRnet info at http://www.krnet.org/info.html
