Meaning of water-line model | Babel Free

Definitions

a model of a vessel formed of boards which are shaped according to the water lines as shown in the plans and laid upon each other to form a solid model

Examples

“Assuming the body-plan to be already swept in by the diagonal lines, (it matters not for our present⟳ purpose whether they are swept in the half-breadth,) we may now divide⟳ the body-plan into sections parallel to the base-line, as high as the load-line of flotation; and on those assumed water-lines take⟳ the half-breadths, the same as we would were we laying down a water-line model⟳, or laying down the water-lines, which in fact we would be.”

“The larger the boat, the more can these dimensions be exaggerated, and we are afraid that a model⟳ to scale would be very "crank." A 20-in. water-line model⟳ of the design⟳ given could not comfortably carry⟳ more than 400 sq. ins., and it would be advisable to drop the keel another inch to make⟳ the draught about 4½ ins.”

“Until 1794 ships had been built from skeleton models composed of pieces that showed the frames, keel, stem, and stern post⟳, but were of little use⟳ in giving an accurate idea of the form⟳ of a vessel, while it required much time and labor to transfer⟳ the lines of the model⟳ to the mould loft. In this year, however, Orlando Merrill, a young shipbuilder of Newburyport, at that time thirty-one years old, invented the water-line model⟳, which was composed of lifts joined together, originally by dowels and later by screws.”

“This is a water-line model⟳, and was presented to the Museum by the North German Lloyd.”

“You have⟳ a choice of building a water-line model⟳ as pictured at the top of the page or a keel model⟳ as detailed in the plans.”

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