I don't recall the torque of the Hitecs now and can't find any current reference information from Hitec. Was able to find the following link that shows them to be 132 oz-in at 6v -
http://webpages.charter.net/rcfu/Hel...ervoChart.html You ought to be able to know if the rudder servo is enough by the way the plane holds a knife edge. Mine does so with very little rudder input.
Thanks for the compliment on the Nomad.