Hello Brian and the Net Over the years I have tried to use two different ground adjustable propellers. First was the original one marketed by RR. It had it's problems and was recalled by RR. My experience with it was good, although others had bad experiences including the loss of a blade. As to the changes from a higher pitch to a lower one, my only experience was the removal of my first turbo and the adjustment to compensate for the loss of the turbo. I do not feel that the process is a simple 10 minute process. It was more like an hour. As anyone that has followed me would tell you, I also experienced the IVO prop. I do feel that it was a simple 10 minute pitch change process. I never did make a long flight with mine to determine it's usefulness. I do not recommend this prop to any one based on the company service bulletin requiring constant checking for blade movement, as well as my own experience with the delamination of both blades. As for ground adjustable vs a highly specialized custom prop such as the ones by Ed Sturba, Unless your flying required a lot of 4 hour cross country flights (over 600 miles in the average KR), I would recommend getting a Sturba. The only problem with buying a custom prop is knowing what pitch to order. Each engine, carb, ignition combination is different and requires a different prop. There should be enough examples of engine and prop combinations to make a reasonable guess. Ed Sturba is real good at that.
Orma Southfield, MI N110LR celebrating 20 years Flying, flying and more flying http://www.kr-2.aviation-mechanics.com/
