Michael Storer Boat Design

TC35 - Light Efficient Riverboat for 15hp Outboard Motor

Length - 11.7m (35ft)
Beam - 2.13m (7ft)
Displacement - approx 1800kg (1.8 tons)
(includes crew and tankage half full)
Power - 10 to 15 hp High Thrust Outboard for cruising speed of 7 to 8 knots
(or 2 x 10/15) for 9 to 10 knots

Simple to Build - Prefabrication Method - Most of the major parts can be finished before the boat is assembles.
Almost silent
Cheap liveaboard
Drawings for all bulkheads and panels to allow prefabrication of parts.  Position of major interior items is given on bulkheads for fast assembly of interior.

Plans $190 (was $400) delivered by email to print yourself.
Plans on paper attract additional print/post/handling charges

Plan Agents
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I recently completed a revision to this design for a North American Client.  It added more detail to the plan to make it more user friendly.  Also I managed to resolve some of the aesthetic issues that had always bothered my by altering the window size and position.

A little touch of le Corbusier - the great Swiss-born architect responsible for modernism.

I have left the original drawing below - but here is the new one.  "Smoke and Mirrors" - but good smoke and mirrors!

And the old

The Riverboats have the admirable qualities of being among the easiest boats to build, having excellent performance with small powerplants and being
very easy on the wallet.

These properties are achieved through having a lot of length for a given width. This results in minimum drag underway and a large reduction in the amount of building materials needed.

The smaller versions (less than 30ft) are also very light to tow, opening up all sorts of cruising possibilities.

The original 30ft Tennessee was designed by innovative American designer, Phil Bolger a few years back. Picked up in this country by Duck Flat in Adelaide, over a dozen have been built, each slightly different for use on the Murray River, the Gippsland Lakes and similar areas.

The reason for the rediscovery of the design were a mix of trailerability, a speed of 7 to 10 knots from a near silent 4-stroke outboard/s making the long stretches of Australian rivers into easy going

The original Tenessee is a delightfully simple boat which helps keep the cost down.  This larger version provides a permanent double berth in a separate cabin and room for a larger galley and head (toilet/shower) compartment.  

The advantage of this version over the original Tennessee is that the plan has more detail and the hull has a double floor to allow services (electrical, plumbing and tankage) to be placed underneath.

Travelling is easy with the crew able to relax and take turns at the helm while eating through the miles while leaving only a minimal wake.

The extreme shallow draft allows exploration of waters not frequented by waterskiers or jetskis and where birdlife and quiet stretches are abundant.

The boats have a very smooth ride, with the fine bow cutting through a steep chop with no pitching pounding or spray.

A major factor in the success of the boats is the availability of the 4-stroke, high thrust Yamaha outboards - nearly silent, smokeless, vibrationless, but with heaps of pushing power - civilised.

35ft Riverboat - a live aboard home for a couple (with occasional company) has been built on the River Kwai in Thailand. A good galley, separate loo, cruising speed of 8 knots with 15hp or over
10 with a twin 10hp setup.

For a discussion of the rough water handling properties of the type please see the article on the 23ft Dayboat/Launch that has a similar hullform.  Dayboat/Launch Page

The plan does not have step by step instructions like my smaller designs, but has comprehensive drawings for all the bulkheads including the framing positions for furniture (image right).  This means that the furniture does not have to be measured up seperately saving a great deal of time and energy.

Michael Storer Boat Design Wooden Boat Plans


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