-------------- Original message from "John Slade" <sladerj@bellsouth.net>: --------------


> Rotary people;
> I'm really starting to like this IVO prop. The prop is very smooth
> (noticeably smoother and quieter than the Performance 3 blade) and the pitch
> adjustment makes a dramatic difference. Take-off is much shorter now and
> the climb keeps getting me too close to the Cessnas that took off 5 minutes
> ago.
>
> Today my take-off was proceeding normally - then I glanced at the boost
> level. MAP was only 34. Hmmm. I gave her a bit more throttle, took the boost
> to around 38 and she surged forward as though someone lit a rocket on the
> back. Wha hoooo! This is the best performance I've ever had, and then some,
> and there's a lot more left that I'm not using.
>
> Cruising out of the pattern at just below max fine pitch I was doing around
> 130 kts with 5000 rpm. Once at 3000' I coarsened the pitch for about 3
> seconds. (It takes 14 seconds to go from one limit to the other). RPM went
> down to 4500, speed went up to 140 and I felt a pleasant push in my back.
> OK. I brought the rpm back up to 5000. Speed went up to 150. Hmmm. This is
> interesting. I went through the cycle again and things changed by about the
> same proportions. I pretty sure I had quite a bit more adjustment to go on
> the prop, and I didn't take the engine over 5600 rpm, but I was now reading
> 175kts TAS (170 averaged for wind) at 5600 rpm and only 34 map. Wow. I feels
> like I finally found fifth gear after driving in fourth for two years. I
> can't wait to find out what 6100 rpm at 12000' and 46 MAP will get me. Not
> far short of orbital escape velocity and a long way past VNE would be my
> guess. Unfortunately this won't happen until I have my new T04 turbo
> installed.
>
> I'll report more number on the IVO when I have them. Right now I'm having
> way too much fun to take notes. :)
>
> John
> 48.3 hrs, and finally getting what I'd hoped for.