In article ,
"Dudley Henriques" wrote:

You're right. The best yaw indicator in the airplane is the nose of the
airplane. Instructors should be able to pick up the slightest amount of
uncoordination simply by watching the nose.

An interesting demo is to take you feet off the rudders, look out over the
nose, and quickly roll in full left or right aileron deflection. Depending
on how much inverse yaw your particular plane has (172's do a great demo;
Cherokees less so), you will see the nose of the plane first get pulled off
to the *outside* of the turn, then as the bank angle gets established,
start to get dragged in the right direction.