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قراءة كتاب Boat-Building and Boating

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‏اللغة: English
Boat-Building and Boating

Boat-Building and Boating

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دار النشر: Project Gutenberg
الصفحة رقم: 6

href="@public@vhost@g@gutenberg@html@files@44228@[email protected]#Fig_20" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">Fig. 20.

many drawings
Parts of Man-Friday sailing-raft.
20.—Logs in place with braces. Figs. 21, 22, and 23.—Struts. Fig. 24.—Pegs. Fig. 25.—Raft with middle and stern strut in place. Fig. 26.—Springs for dry deck. Fig. 27.—Dry deck. Fig. 28.—Dry deck in place

This holds the logs steady, and we may now lay the two cross-pieces in position, and mark the points on the logs carefully where the holes are to be bored to correspond with the ones in the cross-pieces. Bore the holes in one log first; make the holes deep enough and then fill them with water, after which drive the pegs through the ends of the cross-pieces and into the log. The grooves in the pegs (Fig. 24) will allow the water to escape from the holes and the water will cause the peg to swell and tighten its hold on the log and cross-pieces.

Now bore holes in the other log under those in the cross-pieces and fill them with water before driving the pegs home, as you did in the first instance. Fig. 25 is a Man-Friday raft.

The Deck

Before placing the bow in position we must go ashore and make a dry deck. Selecting for the springs two long green ash or hickory poles, trim the ends off flat on one side, as shown by Fig. 26. This flat side is the bottom, so roll them over, with the flat side toward the ground, and if you can find no planks or barrel staves for a deck, split in half a number of small logs and peg or nail them on the top side of the springs, as in Fig. 27.

Now all hands must turn out and carry the deck down to the raft and place it in position, with the flattened sides of the springs resting on top of the logs at the bow. Prop it up in this position, and then bore holes through the springs into the logs and peg the springs down. Over the flat ends place the heavy bow cross-piece, bore the peg-holes, and fasten it in position (Fig. 28).

In the centre of the bow cross-piece bore several holes close together and chip out the wood between to make a hole, as square a one as possible, for the mast to fit or "step" in. With the wood from a packing-box or a slab from a log make the bench for the mast.

Bore a hole through the bench a trifle astern of the step, or hole, for the mast below. It will cause the mast to "rake" a little "aft." You have done a big day's work, but a couple of days ought to be sufficient time to finish the craft.

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