duckduckgoose
Well-known member
Yeah I was wondering about the rudder, I will have to wait and see how it goes on the maiden (this weekend I hope). The AUW has only increased by 100 grams with the new wing, so hopefully it goes alright. ThanksThe extending the wing span the bigger the fin & rudder has to be whereas the tail plane and elevator can largely be left 'as is'.
The problem comes down to the weight of the wings. Bigger span = bigger inertia so it needs more "rudder" to get it yawing so the dihedral can take effect to create the bank and just as important to stop the yaw so it returns to straight and level.
Outboard ailerons on the other hand actually get more effective at creating bank the bigger the wing span and thus they relegate the rudder to just adding sufficient yaw input to keep the turn 'neutral'.