Free model tug boat plans are not hard to find, but many of the images that turn up in searches are pictures of plans rather than plans you can build from. This guide covers where to find usable free tug plans, how to check whether one is complete, and how to turn it into a hull, whether you want a static model or a radio-controlled tug for the pond.
Why tugs make good first scratch builds
Tugs are one of the most popular subjects for scratch builders, and there are good reasons for that:
- Compact, beamy hulls. A tug is short and wide for its length, so even at a fairly large scale the model stays manageable.
- Simple deck layouts. A deckhouse, a funnel, towing gear and fenders, without the complexity of a rigged sailing ship.
- Forgiving on the water. RC tugs run at slow, realistic speeds and are stable when properly ballasted.
- Lots of character. Tyre fenders, towing hooks, bitts and weathered paint give plenty of scope for detail.
Where to find free tug boat plans
Free tug plans tend to come from a handful of places:
- Model boat magazines. UK and US modelling magazines have printed or given away free plan sheets over the years, and tugs have been a regular subject. Back issues turn up secondhand.
- Digitised hobby magazines. Archives of older general-interest hobby and science magazines, some of which are searchable online, occasionally include small boat model plans.
- Model boat clubs. Many clubs keep a plans library for members, and members often share plans they have drawn themselves.
- Forums and build logs. Builders on model boat forums sometimes post their own drawings, often as part of a build log that shows how the plan works in practice.
- Archive drawings of real tugs. Some maritime museums and enthusiast groups hold general arrangement drawings of real tugs. These are not model plans, but they can be the basis of an accurate scale model.
If you find a plan on an image-sharing site, try to trace it back to the original source. The original is usually higher resolution, and you will know who drew it and what scale it is meant to be.
Types of tug and what the plans look like
The kind of tug you choose affects the plan you need:
- Harbour tugs are short, beamy and simple. They are the classic beginner subject.
- Ocean-going or salvage tugs are longer and more seaworthy-looking, with bigger superstructures and more deck gear.
- Steam tugs have tall funnels and a distinctive look. Plans often show a counter or rounded stern and simple deckhouses.
- River and canal tugs are low and compact to suit bridges and shallow water.
- Modern tractor or azimuth-drive tugs have unusual propulsion units under the hull. They make interesting RC models, but the drive system is more complex to replicate.
Checking a free plan before you start
Before you invest time, check that the plan includes:
- A profile and a deck plan. These give overall length, deck layout and superstructure positions.
- Hull sections or a lines plan. Without sections at regular stations, you are guessing the hull shape. If you are unsure how to read them, see our guide on how to read a model ship lines plan.
- A scale or a scale bar. So you can confirm the printed size is right.
- Enough superstructure detail. Views of the deckhouse from at least the side and front, ideally with dimensions.
If the plan is printed at the wrong size for the model you want, our article on scaling model boat plans up or down explains how to resize it without distortion.
Choosing a hull construction method
Tug hulls can be built several ways. The plan may suggest one, but you are not bound to it.
- Bread-and-butter (stacked lifts). Layers of wood are cut to the waterline shapes from the half-breadth plan, glued together and carved to shape. This suits tugs well because of their full, rounded hulls. See our step-by-step guide to building a bread-and-butter model boat hull.
- Plank-on-bulkhead. Bulkheads cut from the body plan sections are mounted on a keel, then planked with thin strips. This gives a lighter hull with room inside for RC gear.
- Carved block. For small static models, a solid block carved using templates taken from the sections works well.
- Balsa sheet or block. Light and quick to shape, but it must be sealed thoroughly for water use. Our guide to free balsa wood model boat plans covers balsa-specific points.
Building from the plans: a typical sequence
Every build is different, but a common order for a plank-on-bulkhead tug is:
- Copy the plans. Keep the originals clean and work from copies.
- Make templates for the keel and each bulkhead. Our guide to transferring model boat plans to wood covers the methods.
- Cut and assemble the frame on a flat building board, checking each bulkhead is square to the keel.
- Fair the bulkheads with a sanding block so planks will lie smoothly across them. Our guide to fairing bulkheads before planking covers the technique.
- Plank the hull, then fill and sand.
- Seal the hull inside and out if it will go in water. Many builders use thin epoxy or a resin and lightweight glass cloth.
- Fit the deck and superstructure.
- Add fittings and paint.
Notes for radio-controlled tugs
A working tug needs a little more planning:
- Leave access. Plan a removable deckhouse or hatch large enough to reach the motor, battery and receiver.
- Ballast to the waterline. Tugs usually need added ballast to sit at the scale waterline. Place it low and centrally, and adjust in a test tank or bath before fixing it.
- Propeller and rudder. Tugs are often fitted with a relatively large propeller turning slowly, and some builders use a Kort nozzle around it as many real tugs do. A generous rudder helps low-speed control.
- Seal everything. Pay particular attention to the propeller shaft tube and rudder tube, which are the usual sources of leaks.
- Test early. Float the bare hull with ballast and gear before final detailing.
Detailing a tug
Fenders are what make a tug look like a tug. Depending on the era, these may be rope fenders at the bow and stern, a line of tyres along the sides, or heavy rubber fendering. Towing hooks or winches, bitts, a mast with navigation lights, lifebuoys and a ship’s boat round out the look. Photographs of the real tug you are modelling are the best guide, since fittings changed over a working life.
For more on finding plans for other vessel types, and on judging plan quality in general, see our main guide to model ship plans.