Steam Tug Hull

A plain fibreglass hull was purchased from Kingston Mouldings. The hull came with scaled drawings of a full sized TID tug to help with the fabrication of the superstructure.

The Kingston Mouldings owner was very helpful and the web-site is an essential read if you are thinking of modelling using fibreglass.

The first thing to be done with the hull was to work out how much weight would be needed to make it stable and sit at the correct height on the water. To do this the hull was placed in the bath and pints of water were added into the hull until it sat at the water line indicated by the plans. Then with some simple maths, the weight of the water inside the hull was calculated. In my case a total of 11Kgs would be needed to get the boat to sit at the correct level.


Hull layout plan.

The layout of the inside of the hull was carefully planned. Considerations were made for the location of the engine, boiler, gas cylinder and radio gear inside the hull whilst bearing in mind the shape of the super structure, location of the funnel and rudder assembly.





Once the layout was planned a simple stand made from plywood was constructed to hold the hull.


Inside the hull two 6mm ply bulkheads were glued in place and a deck supporting spar was glued along the moulded line.






The propeller and shaft were purchased parts.

The shaft was aluminium bar, bored right through. The rudder and frame were fabricated from brass and the blue supporting webs were made from plastic off-cuts.





The inside of the hull was sealed and painted and the lower decks were added.

The rear lower deck had cut-outs for the control servos and radio gear.

The front lower deck covered a water/ballast tank and was also the support for the gas cylinder








Brass studs were bonded into the hull to support the engine plate.