RE: Webra
TB, I had a P5-.91 for a while and it did exactly as it was designed, it would turn an APC 14x12 at exactly 9,000 rpm. Some who bought it tried a 14x6 like standard .91s and they were disappointed. All you had to do was read the prop range to know a 14x6 was not going get it. The prop range was 14x12 to 16x8. As the old saying goes, you can't make it what it ain't.