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The George Blog – Category: Design (10 Most Recent)

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Alternative WC Compartment for Design 119 posted in Design
Design 035 - CNC cutting files posted in Design
Design 168 – Deben 4¾ -tonner posted in Design
Deben 4¾ Tonner Plans posted in Design
New Design No. 178 – Starfire 23 posted in Design
Instructions Book 5 for Design No. 165 posted in Design
Re-caulking Dazy posted in The Odd Word
Addition/Extension posted in The Odd Word
Deben 4-Tonner posted in Design
Deben 4¾-Tonner – New Design posted in Design
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Alternative WC Compartment for Design 119

Plans are now available in the standard plans package for the alternative WC compartment.

This has the toilet set fore-&-aft, facing aft, with the final forward part of the quarterberth top hinging up out of the way to give footroom.

A curtain from Frame -3150 (the main aft bulkhead) to Bulkhead -2250 can be easily arranged to give some privacy if wished.
Date posted: Sunday, 29 Sep 2019 | Comments (0)

Design 035 - CNC cutting files

CNC cutting files are now available for Design No. 035.

Also there is a new drawing in the standard plans pack which gives the necessary data for marking out and cutting out the developed shapes of the topsides and bottom planks.

Developed shapes are the shape to be marked out on a flat sheet, which will be the correct shape of the item (in this case the hull skin planks) when it is bent around in place on the hull. This saves taking patterns and so on.
Date posted: Sunday, 29 Sep 2019 | Comments (0)

Design 168 – Deben 4¾ -tonner

Gradually adding more plans for this design!
Date posted: Friday, 26 Jul 2019 | Comments (0)

Deben 4¾ Tonner Plans

The first plans for this design are now on the site.

These show the basic longitudinal structures in plan and profile view, and drawings (including offsets) of the laminated frames.

The particular build for which these plans are drawn has an extended doghouse – the doghouse is extended by 200mm aft, though the companionway remains in the same place, giving a short entrance well as you come up from below into the cockpit.

This is a favourite arrangement of mine as it gives a sheltered area to transition from down below to the possibly cold and wet outside! It also makes a good sheltered place for the cook to stand mugs of soup and so on for the crew out in the cockpit.

There isn't a general arrangement drawing yet showing this arrangement – but I think it will improve the aesthetics as well as be very practical.
Date posted: Monday, 25 Feb 2019 | Comments (0)

New Design No. 178 – Starfire 23

We've added a new design, the Starfire 23 – the first of a class of lapstrake sailboats 6m (20') and above.

The boat is built on seven ply-sandwich ring frames that can easily be CNC cut. There are six strakes in all – a flat bottom strake, four strakes in the hull proper and a full-length coachroof strake, all of which can be CNC cut if wished; we will also provide the data to mark out and cut all the ply components by hand if a builder prefers.

The design features a full width coachroof which gives a spacious interior and simplifies construction considerably.

The accommodation has four berths, a small saloon, a good galley and a separate WC compartment.

Build plans for this design will be available soon.
Date posted: Saturday, 26 Jan 2019 | Comments (0)

Instructions Book 5 for Design No. 165

Up until now, current builders have been using #119 instructions for the later part of building their boats.

The new #165 Instructions Book 5 now carries the builder through to completing the deck and superstructure structures. It also covers turning the boat over, setting up, epoxying the interior, planing and bevelling the sheer and making the ballast keel pattern – there is also a section on casting your own lead keel.
Date posted: Saturday, 03 Nov 2018 | Comments (2)

Deben 4-Tonner

I've taken the opportunity over the holiday period to complete the recreated Construction Plan for the Deben 4-tonner.

This has been a long while coming – but it is hard to find the time to do this sort of work. Recreating a pen and ink drawing using a CAD program is surprisingly difficult: the two media are very different.

The original tracings of the Deben 4-tonner are 80 years old and very yellowed and fragile, so any form of printing is pretty much impossible – which makes it a scale rule and drawing exercise – which is very time consuming.

I have W. M. Blake's own scale rules – so I feel it is appropriate that I have been using them to recreate his drawings 80 years on.

big fishThe original construction drawing also has three amusing little fish sketches, one of which is reproduced here. All three are on the recreated drawing, as they were on the original.

Now I have the Gaff Rig Sail Plan and the Bermudian Rig Sail Plan to do – neither of which is as complicated as the construction drawing, so I hope to get them done in the next few days.

I will also be scanning two original Deben 4-tonner brochures, including specifications, which may be of interest to Deben owners and possible new builders.

I think that among the Deben 4-tonner papers is a corrected Table of Offsets, produced after lofting – if so I will reproduce this also.

These plans, together with the corrected offsets and the brochures provide sufficient material fo anyone who would actually like to build a Deben 4-tonner today.

Cheers – and a Happy New Year – George

Update 02:01:2017 – Gaff and Bermudian Sail Plans completed and added!
Date posted: Saturday, 31 Dec 2016 | Comments (1)

Deben 4¾-Tonner – New Design

I have just added another new design – the Deben 4¾-Tonner, inspired by the original Deben 4-tonner, the design of which was commissioned by my father in 1936 from W. M. Blake.

Bringing together the best of traditional style sailboats with modern construction techniques, this new design gives builders the opportunity to construct a traditional long-keel, round-bilge sailboat, based on a truly proven design (35 Debens were built between 1937 and 1960), with the structures simplified and intended for wood/epoxy construction.

In working through the design, I have also put together a list of all the Deben 4-tonners. As time permits, I will also be adding links to original photographs of these boats (where I have them) and news of their current status.

Date posted: Sunday, 25 Dec 2016 | Comments (1)

Sapphire 27

Some years ago we designed a super-classy modern sailboat called the Sapphire 27 – our Design No. 056.

Sapphire She was exhibited at the 1995 Southampton Boat Show. And she proved to be an extremely fast and capable sailboat. Unfortunately the company that marketed the boat went out of business and no more were built.

I think that is really sad, because she is a great boat. She has sailed thousands of sea miles from England to Spain and back, crossing the Bay of Biscay many times. She has more than fulfilled the promise of her early sail trials.

I always thought that the original design had one major drawback – she deliberately had only good sitting headroom down below. I reckon at 27' (8.23m), one should be able to have reasonable standing headroom throughout the accommodation, especially if the boat is to be for family use.

So we redesigned the boat to have a little more freeboard and coachroof height – so she has good headroom throughout. We simplified the ballast keel and re-did the structures so that a variety of interiors could be accommodated without structural alterations; and we simplified the rig somewhat.

Other than that she is the same great seaworthy and fast sailboat. She is not difficult to build – but as home builders know only too well, 27' is quite a lot of boat in terms of time to build.

Over the next few months we will be developing the build plans and instructions so that they become available as a download.

Date posted: Friday, 25 Nov 2016 | Comments (2)

Traditional Clinker Plans for Design 073 now available.

073This boat has been built many times as originally designed, in ply/epoxy lapstrake on three thwart modules.

But she has also been built in a variety other construction methods:

Cold-moulded on laminated frames.
Frameless cold-moulded on a plug.
Traditional clinker.
Ply/epoxy lapstrake on laminated frames.
Solid timber epoxy glued lapstrake on laminated frames.

In fact there are more construction versions of this boat than any of our other designs!

I'm happy to say that, following a request from a US builder of this boat, the plans for the traditional clinker version are now included in the downloadable Design Package, alongside the original ply lapstrake plans and cold-moulded on laminated frames versions.

Also, here is a very nice article in Watercraft magazine about the clinker-built "Anemone" (opens a new PDF window).

Date posted: Sunday, 26 Jun 2016 | Comments (0)