Thanks, folks. I hope you understand where this was going. It was beginning to turn in to a nasty.. well, you get the idea.

Back to the subject of the OP. (That's Original Post, FLAP).

Ever seen one of those very fast aircraft with a one blade prop? Very odd, but they do run and do fly. They get way up there in RPM, too. I can't quote the numbers, but I've heard them run. They end up sounding like a very loud electric motor or something. Very odd, but very fast. From what I understant, the single blade prop cuts back on the drag caused by a two or multiple bladed prop?

I wonder what happens when THEY throw a prop. Those engines don't last long, either. But, like dragster motors, they do the job for a short time then it's either rebuild or replace time.

CGr.