Steering was controlled by a single, large rudder.
This in turn required that a larger rudder be fitted.
Two more were mounted aft, blowing over large rudders.
Side-to-side movement of the stick controlled the large rudder.
The fin and large rudder are swept, with a small fillet.
The Ba.122 was equipped with a larger rudder and had a more powerful engine.
It was rebuilt with a larger rudder and delivered to the Air Board eleven days later.
A large oval rudder was mounted on the final, common vertical with a tailplane above it.
It is important for large boats, that are able to move very large rudders with vastly reduced power.
The "A" model incorporated some minor changes, including a larger rudder with an aerodynamic balance horn.