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Re: Tailwinds for sale

Bob Wray All Messages By This Member #89963 Whilwind prop pitch adjustments: Flew 1/2 hour today with a lot more pitch (26.1 degrees relative to new spinner back plate). This is approximately the same pitch angle I had last summer that gave me about 195 mph. Todays 26.1 degrees was with a different hub, relative to a different backing plate, and was measured with a different protractor. Whatever the source of difference this is now (probably) too much pitch. Today WOT at 7500’ ?gave 23.2”MAP 2400rpm and 191mph average stabilized ground speed flying 4 points of compass. ?This was without spinner dome. Also static rpm was only 1800rpm. ? I plan to make more flights including some lower altitude flights at WOT and less than WOT with spinner dome installed before adjusting pitch again. Currently I expect to target <25 degrees.? Also, I posted a basic ad on Barnstormers.? Note that I may replace N115WT with a low and slow airplane that could be a primary trainer for my young adult children.? toggle quoted message Show quoted text On Tue, Feb 18, 2025 at 3:16?AM Bob Wray via <rjwray=[email protected]> wrote: Whirlwind prop (new whirlwind spinner going on now, see pic). Efficient cowl. Low drag wheel pants with nice gear leg fairings (taping them adds a few knots but I haven’t learned to do it without making an ugly mess). A very nice single piece of carbon fiber that provides both sides wing root fairing and runs across the fuselage at the back of the windscreen that is a work of art. Very smoothly built wings. Simple and light build.? Those are incremental factors. The quantum leap came from Steve Wittman and his wonderful design. ? On Mon, Feb 17, 2025 at 6:07?AM Thomas B via <tbinpittsboro=[email protected]> wrote: Thank you for that detailed info, Bob.? Great performance :) Noticed the plenum on the previous pic you posted, any other efficiency tweaks done on your TW ? ?? Thomas in NC -- Bob Wray N115WT KABI -- Bob Wray N115WT KABI

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#89963

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