[Titanaircraft] Re: Wheel Pants

--- In Titanaircraft@yahoogroups.com, "Kimberly Panos" <kimberly@...> wrote:
>
> Lucien,
>
> One of the Tornados here with no static had the round pop-out vents. You could push the vent open, then rotate it back and forth for almost a 10 MPH change on the ASI, and watch the VSI go crazy, with the altimiter fluctuating as well.
>
> I think you're the only one I've heard of with a harmonics problem with the WD prop. I know that Ken Korenek has flown one on his 912S for years, and has become almost the exclusive prop that is being installed on all the 912S's at a local RANS dealer/builder here.
>
> Around here, the mountains keep you prisoner if you're under 10k and want to go anywhere eastbound.
>
> We use the combo pitot/static that looks similar to the factory Titan setup. We get them from aircraft spruce, then shorten the height. It also requires drilling some small calibration holes in strategic places to calibrate it in the airplane.
>
> --Kimberly
>

Hey Kimberly,

I spoke to both capn' Bob Perry and Don Trisler about this when I had my WD mounted to the plane, they both use the WD. Bob said he has no trouble and Don said he thought he did have a harmonic but that it wasn't harmful. I think those are the only other 2 SS's that run a 912/WD combo apart from Div whose prop uses WD blades. Go figure...

I talked to Daryl at WD about it as well and we pretty much reached the conclusion that I already have about as good a combo as WD can offer already and changes in diameter and extension probably weren't going to do much as far as the harmonic.

But it was bad enough to make me nervous about flying the plane long-term with it. You could see a hint of blur on the end of the aileron spades with it and a very very slight blur on the top of the GPS mount in the cabin. Not to mention the hard buzz in the seat.

The PF has a completely different resonance which breaks the resonance up. It still gives an audible harmonic on climbout but with no buzzing or vibrating sufaces.

There's no more spectacular performer you can get tho. I couldn't believe how fast the plane went at only half throttle.......

I love my PF, but I wouldn't use anything else but the WD if it didn't have the harmonic on this particular plane......

LS

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