Milt,
now you’re definitely the one confused here.
If the force on the rudder is
opposed to the horizontal component of lift, any sideslip it creates will be in the
opposite direction of the horizontal component of lift,
adding to that horizontal force.
Either way, it doesn’t really pertain to the question I raised. My question was: Why would there have to be sideslip when the forces cancel out without it?
Look at the forces and moments involved.
The thrust asymmetry generates a moment. This moment is countered by the moment generated by the horizontal component of lift and the horizontal force at the stabiliser.
The horizontal component of lift is equal and opposed to the horizontal force at the stabiliser.
Thrust equals drag.
M_yaw_total = 0
F_lateral_total = 0
F_longitudinal_total = 0
We have equilibrium, sans any slip. Why do you insist it has to be there?
I’ll see if I can dig up a good WWW reference for all of this.
Regards,
Fred
P.S. In physics, translate is the common term for when you get something moving, as opposed to merely rotating it. Cmpr “translational lift” for helos.
To be dull and hit the dictionary:
Translate
...
4. To transfer from one place or condition to another.
...
7. Physics. To subject (a body) to translation.
...