>However, there is a major disadvantage to their use on a KR-2. The blades >are constant angle. When there is little difference between takeoff and >cruise speeds, this is okay (my Renegade stalls at 38 mph and cruises at >70). With the much wider speed range of a KR, the straight blade cannot >be efficient over the whole range. It can be efficient at takeoff and >climb, but most of it becomes a rotating speedbrake at cruise. I would >suspect it could make a 15 to 20 mph difference in cruise speed.
There is a difference between Ivo and Warp Drive props. With the extra cost "near constant speed" cut, the above is not true for the Warp Drive prop. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com
