radius chine == radius bilge ?

Mr Efficiency · Nov 24, 2016

If plywood has gone the way of most timber products, quality wise, in recent decades, then he might have changed his mind, but I guess if you shop around carefully, you improve yoiur chances.

Angélique · Nov 25, 2016

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I've looked up the Dix radius chine plywood article Capt Ronrico mentioned ¹³, Wynand is right ¹⁵, the article is about Dudley's own Didi 38 'Black Cat' which was launched in 1995.

Small Trimaran Design ---> Construction Issues ---> Construction Methods ---> Radiused Chine ^quoted

Dix Design ---> Didi 38 ---> Radius Chine Plywood Boat Building

. . . . Economical Construction

I had felt for a long time that steel was the least costly material for boatbuilding, but this project proved otherwise, by a long way. There was also little expense on fairing the hull, as required for a quality metal hull, because plywood sheet is largely self-fairing. The labour input was also extraordinarily low so (for a monohull), this method of construction can hardly be beaten in terms of the most boat (or the best speed) for your buck. . . . .
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Since the above is specific about an 38' it well could be there's another truth for greater lengths...

George Buehler ---> 70’ 8” Wunderburg ---> Random Thoughts ---> Wood Decks on Steel Hulls ^quoted

Wood Decks on Steel Hulls - - (about the 70’ 8” Wunderburg - a “kayak” yacht!)

I am an unrepentant Wood Boat Man. I like steel fine, and I can see the place for all other materials but given my druthers I'll always go with wood. However, in larger sizes, if costs are an issue in most cases steel makes far more sense for a boat. The labor is far less and the materials themselves are less. It's just that well, it ain't wood. . . . .
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Angélique · Nov 26, 2016

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Angélique said: ↑

Since the above is specific about an 38' it well could be there's another truth for greater lengths...
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Just saw PAR explained ¹⁴ the why already. - - Thanks PAR

PAR said: ↑

All building materials have a range of economic viability. Steel tends to favor larger yacht sizes, because of costs and weight. A smaller yacht can't afford the weight penalty and remain within the shapes desired, for its expected performance envelop. Larger yachts require significant scantling increases with wood, forcing its costs and weight issues up. At some point a threshold is reached and one overtakes the other economically.
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radius chine == radius bilge ?

Mr Efficiency Senior Member

Angélique aka Angel (only by name)

Angélique aka Angel (only by name)

Cost of radius chine vs. round bilge hull.

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