Out of Foam Board!
Oh yeah, it was linked to the ailerons I think. It won't need ground handling because it will just belly land. The rudders are also small enough to be controlled by a 9gram servo if anyone wants to be sketchy but cheap.Ercoupe had rudder! both 2 tailfins have rudder motion by a bellcrank.
But a rc model can be made without, and just using elevator and ailerons. Difficult to manouver on ground though.