RE: A Willard for Eric
Why would you want two engines, (and I assume two screws), with one rudder?
The only power boat I have seen with this rig was extremely cantankerous to handle,* just terrible in close quarters.
Thinking more, I do know of some sail hulls that have twin screw, but they will have similar malady.
Without direct prop thrust on a rudder robs you of much maneuverability, imho.
Maybe on a troller hull you could get away with it.
Is this a west coast thing?