On an aircraft with an all-moving tailplane, pitch up is caused by
- decreasing tailplane incidence.
- raising the tailplane incidence angle.
- increasing tailplane incidence.
Explanation from PART66Online
On an all-moving tailplane, reducing the tailplane incidence makes the tail produce a greater downward load (or less upload), which pushes the tail down and pitches the nose up. Increasing the incidence has the opposite effect, generating a nose-down pitch, so increasing incidence would not give pitch up.
J
jawad ismail asked · 31 May 2026
please explain
Community Comments (1)
C
carlosmd
31 May 2026
How else would the nose come up if the tail isn't pushing down harder? It's A, decreasing the tailplane incidence loads the tail down more, so the tail drops and the nose pitches up. Heads up though, the other two options are basically saying the same thing, raising and increasing the incidence, so one of them looks like a typo.
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