Plane rudder? Anyways... All I could think of is making a fake wheel. Just create a wheel datablock. And create a hub to where you want the (example) rudder to be.
datablock WheeledVehicleTire(rudderTire)
{
// Tires act as springs and generate lateral and longitudinal
// forces to move the vehicle. These distortion/spring forces
// are what convert wheel angular velocity into forces that
// act on the rigid body.
shapeFile = "./rudder.dts";
mass = 0;
radius = 1;//---set to 0 for no bounding box
staticFriction = 2;//-----set this to 0
kineticFriction = 2;
restitution = 0.5;
// Spring that generates lateral tire forces
lateralForce = 18000;
lateralDamping = 4000;
lateralRelaxation = 0.01;
// Spring that generates longitudinal tire forces
longitudinalForce = 13000;
longitudinalDamping = 2000;
longitudinalRelaxation = 0.01;
};
datablock WheeledVehicleSpring(rudderSpring)
{
// Wheel suspension properties
length = 0.0; // 0 again
force = 0; // Spring force
damping = 0; // Spring damping
antiSwayForce = 0; // Lateral anti-sway force
};
Then stick
%obj.setWheelTire(2, rudder);
%obj.setWheelSpring(2, rudderSpring);
%obj.setWheelSteering(2,0);
%obj.setWheelPowered(2,false);
In the OnAdd function.