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'Epoxy' isn't a single, homogenous thing. It has lots of components that have different phase change(freezing/gassing) temperatures. Some components will freeze before others, and may cause those...

LW - My comments were with reference to the hullform of the original banks dories, with other 'dories' coming under the heading of derivative designs. Hull types can usually be (and, in naval...

Unfortunately, my thoughts are dictated by the laws of physics. Were I not aware of the awful constraints that the universe so thoughtlessly imposes on us, my opinions could be unfettered by such...

Sure do smile.gif

The dory is an extreme hull form, with the barge at the other end of the spectrum. Both have advantages and disadvantages, but given free rein, most people would choose...

If you're not afraid of mathematics then Larsson and Eliasson's "Principles of Yacht Design" is about the best yacht design text currently available.

Rigging is sufficently simple that any first...

"Seakeeping" is the physics of a vessel's motion through six degrees of freedom. It's a very specific area of study involving a lot of calculus, and doesn't have much relevence to small boats....

God I hate proprietry polymers. The section on the website following "What is Vesconite" should read: "We're not telling". It's a polymer. Whoopee. So is wood. So is lettuce, for that matter.

Just...

How about these long, lean racing canoes in Cambodia?

http://www.khmer440.com/wp-content/battyboats1.jpg

Ok, instead of discussing stern shape, number of hulls, etc., how about we try to quantify the characteristics that are desirable in a 'heavy weather cruiser"? I will, of course, be happy to stick my...

Or in the Great Capitalist Tradition, just find a kid to exploit! It's even cheaper if you breed your own smile.gif

[ 11-18-2005, 10:21 PM: Message edited by: Aramas ]

Hi Luke! I don't know if you've seen the threads on trunnels, but I suspect that you know a bit about trunnels as used in se asian boat construction, so feel free to enlighten us.

Do you know...

I only chose AutoYacht because that's what we had at uni, and I had already spent a couple of thousand hours playing with it instead of studying. We also had MaxSurf, but only on one PC, so no one...

No 2d dxf could be really annoying. Still, it doesn't take long to 'trace' over a 3d import using splines. With AutoShip exports it can pay off to do that anyway, since the lines in AutoCAD tend to...

tongue.gif

I wouldn't be doing any serious CAD until I had a pretty good weight estimate and did all of the stability stuff, but then I'm bone lazy. I hate redoing the same things over and over....

I suspect that someone is in for a bit of a shock tongue.gif How do you feel about allnighters, Chad? Importing usually makes a bit of a mess, and getting the vague outline to look like a...

http://www.imagestation.com/picture/sraid167/p84bd2c279da8a4f979eeb278e1a0258b/f43441fa.jpg

Nice bum, but isn't that made out of *gasp* congealed snot?

Just tell them that their wives and daughters prefer the company on your boat smile.gif

[ 11-14-2005, 08:44 AM: Message edited by: Aramas ]

Talking 'smack'?

[ 11-14-2005, 09:40 AM: Message edited by: Aramas ]

Since we're migrating from the other thread (I have no idea why), the Indonesian pinisi planking is edge fastened with trunnels, but it's also fastened to the frames and through the frames to the...

I must be a weirdo. I like bronze and brass green. Shiny green bronze looks awesome. You don't see them breaking out the brasso for bronze statues or copper roofs. They just wash off the bird poo and...

Being complicated, expensive and requiring glue, it would seem to me that those Miller dowels manage to remove most of the advantages of trunnels. You may as well just screw it or glue it.

You...

From McNaughtons strip planking scantlings in an excel spreadsheet, using displacement given on the previous page, I get planking thickness of 13mm (~1/2") and 412gsm glass (?oz) on both sides....

I agree. Our tradition of building with trunnels is not suitable for lightweght construction, and we invariably suffer from the Not Invented Here syndrome when it comes to exploring alternatives....

I suspect that 'fire hardening' is actually just fast track seasoning of the wood surface, somewhat like case hardening of metals.

Here in Australia, a common building wood is OBH (Ordinary...

I was reading this Sano interview and it describes the traditional japanese trunnels (kikugi) as "Mahogany nails (long, slender square pyramid shape) are used which have to be burned, to make the...

I have an old magazine article with plans in it. If you want the full size scans you should be able to download Tumlaren.rar from Rapidshare.

...

Nice smile.gif

Lol - The only difference between Farrier's various designs are the cabin layouts, size, and materials. His only innovation in the past twenty years was to round the edges on the plastic versions....

It seems that someone is confusing commercial whaling with subsistence whaling.

From the Norwegian Department of Foreign Affairs :
From the Columbia Encyclopedia
...

The Farrier boats have a very convenient folding system, but it limits beam and float bouyancy, making for unnecessarily dramatic sailing habits. They actually heel about as much as monohulls, and...

The website has this to say about the rot resistance of Paulownia.

KIRI timber is highly rot-resistant and that any rot appearing on the timber is only superficial. Clean, white wood appears when...

Todd, you didn't answer the question regarding what the Norwegians, Faroens, Shetlanders and Icelanders used for whaling. Did they have special boats solely for that purpose, and if so, what were...

Just thought I'd ressurrect this old chestnut smile.gif

Highpoint Timbers now have a web site with lots of Paulownia information.

You know you spend too much time on the internet when your...

Well what did small coastal settlements use for whaling then? Every nordic culture that used that type of boat were (and in some cases, still are) avid whalers, and they used what they had - which...

Oh well, my mother always maintained that 'American Literature' was an oxymoron, and from what I've read she was being generous smile.gif I saw the start of an old movie version recently that I...

Yep. Norwegians, Icelanders, Faroers and Shetlanders (among others) weren't averse to a bit of whale meat in their picnic hampers. Some of them even 'aged' the blubber for a nice 'aromatic' snack,...

You could use the 4" lump and cut a slot in it for a centreboard. You'll probably have to taper it back to the 2" at the ends though.

Isn't that boat a 'cod's head and mackeral tail' jobbie?...

I don't see the relevence of qualifications or licensing with regard to design, but to go to sea in any vessel that doesn't meet applicable design standards is just plain silly. All commercial...

Surely you mean no free nautical CAD stuff?

TouchCAD is very impressive and quite affordable.

You could also look at running Free!ship in OSX with WINE. I've had my fill of the obscenity that...

Zamberlans for walking, Blunnies for working and RM's for dancing smile.gif

A lot of the boots shown on this page might be ok for walking short distances, but for covering 100Km+ through the...

Zamberlans for walking, Blunnies for working and RM's for dancing smile.gif

A lot of the boots shown on this page might be ok for walking short distances, but for covering 100Km+ through the...

Zamberlans for walking, Blunnies for working and RM's for dancing smile.gif

A lot of the boots shown on this page might be ok for walking short distances, but for covering 100Km+ through the...

Yes, it's called an 'oceanic lateen' or 'crab claw", and has been so called for a century or two.

A boomed lateen is not a common rig, but has been extensively used on small boats (sunfish?)for a...

Yes, it's called an 'oceanic lateen' or 'crab claw", and has been so called for a century or two.

A boomed lateen is not a common rig, but has been extensively used on small boats (sunfish?)for a...

Yes, it's called an 'oceanic lateen' or 'crab claw", and has been so called for a century or two.

A boomed lateen is not a common rig, but has been extensively used on small boats (sunfish?)for a...

The reason the sheer looks odd to me is because the sheer is very straight in plan view, but curves upward in section view. When I've done that the bow looked kind of odd from the quarters, and deck...

Has anyone got a picture or drawing of "the old Dyer Dhow CB lever"?

Not at all. There are any number of reasons why gaffers are not terribly common. It's mostly fashion related, but traditional gaffers generally require a higher standard of seamanship and a larger...

Perhaps that was why they had to strap a rocket to the prototype just to get it off the ground. If they'd had CAD then perhaps they could have made it fly first time, rather than wait years for...

May as well stick in my oar smile.gif

You really should try doing a 3D model - Free!ship might be the way to go. I haven't tried it, but it has to be easier than the way you're doing it.
...