This is the latest model boat that I have built.
It is based on a Canadian type Pusher Tug.
The hull is GRP, The deck is 1/2" ply and the rest is scratchbuilt in Styrene.
I have made a Fishtail Rudder and this enables the Tug to turn 360' in its own length.
Powered by a 6v SLA battery, a single propeller.