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  1. Re: Vintage Pirate Restoration - Mast design

    In that case, I think I would go with an internal track set flush as you describe - that would be a neat solution.

    Cheers -- George
  2. Re: Vintage Pirate Restoration - Mast design

    I've always cut the bolt rope groove in the two halves before gluing up, which is a much simpler operation. In this way you get the correct width for the slot which is very important the one major...
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    Re: Do you lend tools

    Neither a borrower nor lender be;
    For a loan oft loses both itself and friend,
    And borrowing dulls the edge of husbandry.

    Hamlet Wm Shakespeare 1602

    So - no I don't lend tools, nor do I...
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    Re: Need trick to seal chainplate deck joint

    I hesitate to enter the fray again, having failed to read the original post correctly ... but I assume now that the shroudplate (and associated knee structure) is not in fact moving, but that the...
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    Re: Need trick to seal chainplate deck joint

    Join the Zero Score club with me on this one Jay -- Cheers George :d
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    Re: Need trick to seal chainplate deck joint

    Oops :D
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    Re: Need trick to seal chainplate deck joint

    1 to 1.5 mm up and down movement of the shroudplate relative to the deck is a heck of a lot of movement – basically on a well structured shroudplate/knee arrangement there should be no perceptible...
  8. Thread: Deck Edges

    by debenriver
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    Re: Deck Edges

    With ply decks it was standard practice in our yard to let the ply run out almost flush with the topsides planking – perhaps 1/16" - 1/32" back. Then coat the ply edge grain with several coats of...
  9. Thread: Working Low

    by debenriver
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    Re: Working Low

    And I'm 75 coming up 76 and a teaspoon of Turmeric a day keeps the old joints in great shape!

    Cheers -- George
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    Re: To model, or not to model?

    My view – if they are good professional plans for a proven design – just go ahead and build it. I don't see any purpose in building a model.

    I've built, or been responsible for the build of, many...
  11. Thread: Atkin Awake

    by debenriver
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    Re: Atkin Awake

    On you plans the "Apron" is indeed what is more commonly called a "Chine" or "Log" – it provides extra surface and strength to join the sides to the bottom. And the stem is shown as 1" sided (the...
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    Re: Newish Member

    Absolutely!!

    Cheers -- George
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    Re: Mahogany bare wood revarnish

    Basically - yes – if you sand more you will get rid of the lighter areas and achieve a more uniform mahogany colour. Sometimes a cabinet scraper can be useful. Or a common triangular scraper...
  14. Thread: Atkin Awake

    by debenriver
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    1,542

    Re: Atkin Awake

    Generally 'sided' is the thickness and 'moulded' is the depth.

    So a frame 30mm sided x 40mm moulded would be 30mm in the fore-&-aft dimension and 40mm deep from outside to inside.

    A carling...
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    Re: Building a 32f gaff cutter

    Lovely thread. I grew up with machines like these – we had a 36" bandsaw, a Wadkin 18" planer/thicknesser, a 24" circular saw, all from the 1930's and a big spindle moulder that was old when god was...
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    Re: Deck Camber?

    Actually using the traditional parabolic beam camber doesn't necessarily give a straight centreline at all – it all really depends on the sheer (or the line of the top of the coamings) and the plan...
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    Re: Deck Camber?

    Well it's actually 8.64" in an 8' beam (9% not 10%). " (5.2%) to " i(6.25%) in a foot were quite common cambers on classic carvel boats in the 30' to 50' range that we built in the 1960's and...
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    Re: Deck Camber?

    I design most all my boats using the traditional deck camber layout (see #7 above). This gives a parabolic camber, not one that is part of a circular arc and is better suited to yacht decks and...
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    Re: Probably Not a Deben 4 Tonner ?

    Even though she's probably not a Deben 4-tonner, I've been following this with great interest!

    I'm with Peerie Maa here - get as much as possible of the interior furniture, bulkheads and fit-out...
  20. Re: Idea fixing this mast step / ribs - oughtred JII (Actic Tern ?)

    It could also be that the steam bent timbers weren't very well done in the first place – the transition from the planking to the flat over the keel does look a bit abrupt – I know it is an awkward...
  21. Re: Idea fixing this mast step / ribs - oughtred JII (Actic Tern ?)

    Agree absolutely with Nick.

    Could also be heavy footfalls and no floorboards. Or trailer damage.

    Sister the ribs and refit the floor properly.

    Make floorboards if there aren't any. Don't...
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    Re: Plans and Designs - Rights

    Does it really matter what you call it??

    Cheers -- George
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    Re: Plans and Designs - Rights

    Absolutely – if some sad little person is going to pass their plans on to someone else equally sad to build a second boat from – instead of paying the modest fee that we charge, which is a minuscule...
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    Re: Weighted keel on small sailboat

    Nowadays I think a lot depends on whether you are designing a small open boat, half decker etc, or a small cruising sailboat. My Design 077 (15'6" LOA) for example has a lead ballast keel, draws...
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    Re: Keel attachment and stresses

    As Nick says.

    Basically the ballast keel is bolted to the wood keel. Then the floors are bolted to the wood keel and then fastened to the planking (usually minimum three planks) Fastenings to...
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    Re: Seacock Substitute?

    We used to build aluminium alloy yachts in the 30' - 90' size range to Lloyds 100A1. One of the problems was that the seacocks had to be no more flammable than the hull. And bronze seacocks were...
  27. Re: Lining off the Herreshoff dinghy - possible lap issues?

    Yep!! A man and a boy would build a 10' dinghy in a week or the guv'nor (my father) would be wanting to know what the problem was :d

    Sadly the last boatbuilder from that era, Dennis Hayles,...
  28. Re: Lining off the Herreshoff dinghy - possible lap issues?

    It doesn't matter in the slightest. All that matters is that the planks lap nicely and run fair.

    Whether the planks run a little clear of the moulds or not depends largely on the number of planks...
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    Re: Fixing up a Folkboat

    Traditional boatbuilding is hard work!! It's hard on the knees and hard on the back. Boatbuilders worked at it 5 days a week 48 to 50 weeks a year ... :D

    If one keel bolt is suspect it's likely...
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    Re: Fixing up a Folkboat

    Exactly as Nick says - the mast compression and shroud tension is overcoming the structure and the garboard seam are opening.

    Unstep the mast and clean up the whole area internally – which you...
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    Re: Springing planks...

    As Nick says:

    There should be a stern knee joining the sternpost to the wood keel. This usually has bolts through the sternpost and through the wood keel. How they are accessed depends a bit on...
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    Re: Teak on Mahogany ply on teak deck beams.

    Ok - semantics, semantics! For some reason at Whisstocks (and other English boatyards) they were always called dowels and the machine that made them was a dowel cutter. It has some provenance I...
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    Re: Teak on Mahogany ply on teak deck beams.

    The mould could just as well be a badly ventilated forepeak. If the ply is rotten it will sound dead and be soft to a knife point or spike – also I would expect the paint to be peeling and some...
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    Re: Cold molding issues...help, please

    You would be surprised how much the resin will penetrate - we made laminated stems from 10mm (⅜") Iroko laminates clamped over a jig - no vacuum – and the resin regularly penetrated through those,...
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    Re: Cold molding issues...help, please

    The ones with the black tape under the staples look from the photo to be laid almost vertically?? Is that correct or am I misinterpreting things? But if you are laying them vertically, they won't...
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    Re: 13' Barto melonseed strakes offsets

    As Nick says - there is a Table of Offsets for the plank shapes.

    My only reservation was that it's a bit nerve-racking for the designer to produce developed shapes of planks because you know that...
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    Re: 13' Barto melonseed strakes offsets

    From the designer's point of view it's always a bit nerve racking producing developed shapes of planking – I do it for most of my designs – but it is all theory and builders are going to get CNC...
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    Re: Restoring a 1965 Alan Buchanan 32

    There's no problem mixing Sapele Mahogany and Iroko planks. Of the two, Iroko is the better timber, so do as much as you can with that, and definitely use that for the garboard and the first few...
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    Re: Cosine Wherry

    That's not quite so. For example Robbins in the UK supplies Cedar T&G strip planking ("Rapid Strip") in 6mm x 22mm, 6mm x 33mm and 6mm x 45mm as standard. The confusion may come from the term...
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    Re: Cosine Wherry

    If you can build it with square edge or bead and cove you can build it better with T & G.

    We were building epoxy cold moulded 40'+ hulls with T & G strips in the 1980's for goodness sake – there's...
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    Re: Laminated vs "solid" horizontal spars

    Absolutely. Hollow is not of itself stiffer or stronger that a solid of the same dimensions; solid will in fact be very slightly stronger and stiffer, but will be heavier.

    However, when making a...
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    Re: Free Avon Redcrest 8ft inflatable

    The river Deben runs from Woodbridge to the sea – 9 miles long and one of the most beautiful estuaries on the East Coast. Plenty of people row inflatable dinghies such as the Avon Redcrest in...
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    Re: Painting wet wood or canvas

    As #2

    The canvas is dry when painted.

    Never fill a boat with water to swell up the planking for the reasons given.

    Usually the best way to deal with a carvel planked hull that has dried out...
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    Re: Cockpit seating rebuild advice

    We often made cockpit seats from solid timber but you have to choose your timber carefully so that it does not warp and maybe strap the ends. Nowadays it's difficult to get boards wide enough to do...
  45. Re: Some carpenters are not at ease in a boat shop.

    We had a notice in the office "The man who lends tools is on holiday"

    Cheers -- George
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    Re: Pump Grease into Join?

    We had a screw-down grease gun with a hollow wood screw type nozzle on the end (made in the boatyard). Filled it with a mx of white lead and grease and screwed it into a suspect seam etc. It's...
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    Re: Interlocking Finger Scarfs in Plywood

    For planking, sidedecks etc, where the alignment is critical, I usually draw short thin scribe marks for the CNC facility to mark very shallow, so that when you are gluing the puzzle joints up you...
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    Re: Oak vs. Mahogany Transom Thickness

    As Nick says, it it generally the thickness around the edges that counts, so that you can get a decent fastening/bond for the planking. On larger traditionally built boats the transom is generally...
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    Re: Interlocking Finger Scarfs in Plywood

    As has been said, puzzle joints are not necessarily superior in strength to a proper (8:1) scarph joint – or a butt joint with a properly dimensioned backing piece (butt block).

    Depending on the...
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    Re: Launched my wee pram yesterday

    My congratulations – you made a beautiful job of building her. I think she is probably the first glued ply lapstrake version of that design – previously she has been built in traditional clinker on...
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