
Ch10-H6927.tex 20/6/2007 16: 37 Page 266
266 Flight Dynamics Principles
However, the influence of this characteristic on handling is not well understood and
it is recommended that the condition should be avoided.
Sideslip excursions during lateral–directional manoeuvring are normal and
expected, especially in entry and exit to turning manoeuvres. It is required that the
rudder control displacement and force increase approximately linearly with increase
in sideslip response for sideslip of modest magnitude. It is also required that the
effect of dihedral shall not be too great otherwise excessive roll control displacement
and force may be needed to manoeuvre. ...