T-Tail moments??

unluckystuden

Hey,
I've got a problem of a T-Tail plane that has an upwards force acting on the right side of the horizontal tail, and a downwards force acting on the left... to find the twist angle of the fuselage(assuming the main wings stay fixed) do you use a moment from the horiz. tail acting at the top of the vertical tail? And how do you convert this to torque?
Cheers,

viscousflow

For first pass estimation you'll need a few assumptions.

Assuming:
-The stabilators do not deform drastically under loading
- The fuselage shape is cylindrical

You can simply find the torque exerted on the tail about the Reference Line and assume this transmitted up to the point in question.

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unluckystuden	T-Tail moments?? Tweet Hey, I've got a problem of a T-Tail plane that has an upwards force acting on the right side of the horizontal tail, and a downwards force acting on the left... to find the twist angle of the fuselage(assuming the main wings stay fixed) do you use a moment from the horiz. tail acting at the top of the vertical tail? And how do you convert this to torque? Cheers,

viscousflow	For first pass estimation you'll need a few assumptions. Assuming: -The stabilators do not deform drastically under loading - The fuselage shape is cylindrical You can simply find the torque exerted on the tail about the Reference Line and assume this transmitted up to the point in question.