ORIGINAL: David Bathe
ORIGINAL: cmoulder
[quote
The H-stab will always ''find'' zero!
That what i believe.
Not to mention what I believe in trying to accurately measure EXACTLY 0.25 instead of 0.5 ... and I guess I've got the same instruments as you guys.
Come on... it's about 0.5deg. or +0.25wing/-0.25 stab. Yeap about 0.5.... or maybe it was 0.42?
Interesting thing about different wing/stab incidences is you're actually effecting/modifying the engines thrust angle, and the wing stab vertical positioning alone the datum line.
Want to increase your engines down thrust? Adjust the wing and stab.
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OK, I learned something... I never read before about adjusting both wing and stab to tweak the thrust line. I was aware there are stab adjusters, but just thought they were redundant if you have wing adjusters. MUCH easier than changing the engine position!
I have a couple of the Robart incidence meters, and indeed staying within an error range of +/-0.1 deg (0.2 total) takes considerable effort and guesswork to achieve. And then when I fly the plane to get the ailerons trimmed takes maybe 1/2 or 1 turn of the wing adjusters. Well, at least the incidence meters give some assurance that the plane will be flyable for the maiden, and provide a starting point for the trimming process.