Cheers,
In another life, we had an instructor who slammed books and
kicked walls if one used the term "angle of attack" for anything other than
the angle at which the wing attacks the surrounding ambient air flow.
I don't have the proper term for the angle which the wing makes
with the fuselage horizontal datum, but I remember that it must make an
discrete angle with the horizontal empennage. That is designated (or was) by
"Rigger's Angle of Incidence". So really, the attitude of the fuselage must
be considered (since it assists in overall lift) when measuring for ideal
angle with datum. What complicates this is the 'flying tail' aspect of
stabilator - something which I suppose was fixed by Don Dykins when he
designed the wing (Classic).
If I am correct, does anyone have a universal term for (a) the
wing angle with the fuselage datum, and (b) the angle of the stab with the
datum.
Is that Book III, Theorem 2, corollary 1, "things making the same angle with
a common line are parallel?"
On that note, Happy landings
Ferg A064
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