Tewantin – 3.4m sports runabout

Boat plans for – Tewantin. A fast, lightweight sports boat made from plywood that you can carry on top of your car. Plans include 62 pages of detailed technical drawings and magazine-style notes with all you need, to help you build this boat.

She is a whisker shorter than “Noosa” but quite a different boat. 33% wider with taller sides and much more volume inside. The max motor size is also 3x higher than Noosa, at 15hp, although 6-10hp is the ideal size motor for this boat. CNC files are also available.

Why you will fall in love with Tewantin...

I never wanted to pull her out of the water at the end of the day. The feeling driving this boat was one of gliding, sliding over the water. With her lightweight, smooth bottom and the hull shape. This boat gets on the plane immediately and stays there with little effort.

The hull shape was the result of a lot of trials and refining after the building of the “boat in 2 weeks”. The shape is a big improvement over the straight V bottom it began life as. Offering greater stability and better planning performance. Now with computer-produced plans, all the parts and shapes are easy to cut and fit together exactly.

Carry her on roof racks. I used to carry her on top of my old Ford Falcon. She is light enough to lift up alone, otherwise, a small trailer would be the way to go. On the original boat, I used a 6hp mercury 2-stroke twin (26kg), which was easy to throw in the boot of the car. You can’t walk down the footpath like “Noosa” but she is still light and easy to handle.

What's in the Plans?

The plans include the following PDF multi-page documents and can be purchased and downloaded from your computer, phone or tablet. This is a secure website.

• 1-Welcome PDF  3-pages
• 2-Boat specifications + loading data 2-pages
• 3-Materials lists + tools & safety gear 8-pages
• 4-Build notes (work-table/building the boat) 12-pages
• Drawings-1 (elevation+temp frames) 14-pages
• Drawings-2 (boat frame+details) 9-pages
• Template-1 (6mm Ply parts) 9-pages
• Template-2 (9mm Ply + MFD) 5-Pages

Download links to these files are emailed to you immediately upon payment. You will also be taken to a download page with the above links. You can download the files as many times as you need and free lifetime updates to the plans will be emailed to you when any improvements or upgrades are made.

  • LOA   (length over all)       = 3.4 m – (11.2ft)
  • Beam (max at handrails) = 1.46 m – (58in)
  • Transom height  = 425 mm – (16.7in)   (motor mount height)
  • Height of sides  = 456 mm – (18in)
  • Estimated weight of boat = 60 kg – (132lbs)   (or less)
  • Maximum motor size  = 15 hp
  • Recommend motor size    = 6 – 10 hp
  • Max payload = 270 kg – (595lbs)   (MT boat – no motor or equipment)
  • Max payload (with 6hp as max motor) = 218 kg – (480lbs)
  • Max payload (with 15hp as max motor) = 178 kg – (392lbs)
What materials do I need?

A more detailed list with more explanations and tips is included in the plans, but below will give you an idea for costing your boat.

  • Plywood  –  You don’t need to use expensive grades of plywood or marine ply to make this boat. You can use marine ply if you prefer, and your boat will look even better, when unpainted or varnished. But it is not required. The boat was designed with economy and ease of material purchase in mind – exterior grade, structural economy plywood will also perform the job perfectly.
    • ( 4 sheets )   6mm
    • ( 1 sheet )     9mm
  • Framing  –   Again with the choice of wood for the framing, around the side tops and seat edges etc., pine is economical, readily available and perfectly suitable. But you can use better quality wood as well, such as cedar – it’s your choice.
    • approximately 15-20m of pine framing.
  • Epoxy resin   – approx 10 litres of epoxy.
  • Filler for epoxy – You need 2 types of filler, .
  • Fibreglass tape  – approx. 70 m of tape.
  • Paint – a small amount of paint and there are many options.
  • Foam buoyancy 
  • A few other assorted fittings
  • A motor

Tewantin is the boat I built, back when building the Tokyo Express. Created in Rhino 3D her lines have been faired and refined and building her is much simpler and more precise than when I built the original.

The original boat turned heads and this version is even more stunning. The plans come with detailed instructions, drawings, photos and tips. Even if you have never built a boat before, you can build Tewantin.

Other Boats being built

Marco is the builder of this Tewantin in Brazil, working in limited space in his garage and driveway. The panels when cut, fit together perfectly as you can see in these photos.

The plans are vector PDF documents which zoom with no loss in quality. Work straight from your phone or tablet or print the boat plans on your printer at home. All pages print with good detail on regular A4 paper. The technical drawings include sheets with enlarged views for greater clarity when printed.

These photos show a Tewantin being built by Marco in Brazil, working in his garage and driveway, using stitch and glue method.

Built with aluminium

This is the first Tewantin built with metal. Graeme from New Zealand has done a great job, welding up his boat in aluminium, and gratefully allowed me to share these pictures of his work. Fantastic. 

The boat plans are in PDF format

The full-plans are 8 PDF documents with 62 pages including,

  • 3 elevation dimensional drawings
  • Highly detailed template drawings for all parts
  • Fully illustrated build notes to help the first time builder, with tips and steps to building
  • Plans and instructions for building a work table including materials required. You can use this afterwards for other projects too (like your next boat)!
  • Material lists for the boat and suggestions for tools and consumables
  • Recommendations for safety gear, epoxy, fillers and mixing ratios etc.

Pictures of the original “Tewantin” the boat I built in 2 weeks over 20 years ago.

She was in the water for some time just coated with epoxy, until all the additions and trials were made. Then I painted her with a high build epoxy primer and 2 pack Polyurethane paint. The finish is super smooth and hard wearing.

Tim Weston Boats

This website is all about boats, home boat building and other DIY projects.  A place for the do it yourself builder and anyone interested in boats and making things.

© 2016-2019  timwestonboats.com

[contact-form][contact-field label=”Name” type=”name” required=”true” /][contact-field label=”Email” type=”email” required=”true” /][contact-field label=”Website” type=”url” /][contact-field label=”Message” type=”textarea” /][/contact-form]


Pin It on Pinterest