Ok, this morning I dusted off the old Robart incidence gauge. Dusted again after realizing the numbers on the gauge have gotten a LOT smaller than the last time I used it. 20 years ago those numbers seemed fine!

Anyway, I used the bottom of the side windows for a "water line"/reference point. I shimmed the plane to zero that line out. From there I measured both wings at the root and again at the tip - everything measured +1 degree. Same thing on the horizontal stab. +1 degree there too. Measured the engine and it's -1 degree. All this - best I can tell. Like I said that thing's getting hard to read, but after this measuring it seems Seagull's builders are spot on!!

Bottom line, I didn't see any cause for concern anywhere. The down thrust on the engine is likely there to help compensate for the semi symmetric airfoil? Thinking about it, that may not be enough. We'll see what this testing tells us.

The weight I had on the tail has been removed, and CG confirmed at 3.5" from leading edge. Out to the field soon to put it through some troubleshooting runs (per the link above) to see what they can tell me. Be interesting to see how it does there?