How to Build a Motor Launch by Charles Drown Mower

Author:Charles Drown Mower
Language: eng
Format: epub, pdf
Publisher: The Rudder publishingcompany
Published: 1901-03-25T05:00:00+00:00

HOW TO BUILD A MOTOR LAUNCH

21

Framing and PlanKing

'T^HE greatest difficulty to the amateur boat builder in ^ bending frames usually lies in the fact that he does not get the proper kind of oak,and so has all kinds of trials in bending them. My advice is, go to the best boat builder near you, tell him exactly what you want the oak for, and let him get out the frames for you. They should be of tough, clear-grained white oak that is seasoned but not kiln-dried, so that the fiber of the wood has become brittle and lost it strength and toughness. The size is to be yAt^Y\-\rvz\iy and they must be long enough to extend from rail to rail in one piece.

In order that your work may look finished and workmanlike you should smooth the frames up nicely and round off the corners which will show on the inside of the boat. To bend them, they must be thoroughly steamed in your steam-box until they can be easily bent to the shape required. It is sometimes the practice to bend the frames over a mould or form before putting them into the boat, but I have purposely placed the moulds closely together and had you put on plenty of good, heavy ribbands so that you can bend your frames directly into the boat. The frames are to be spaced 6 inches, so you must bend the proper number into each section, and perhaps a few extra ones in case any should split or become broken. In bending the frames have a man on either side of the boat, and when the frame is in place clamp the heads to the upper ribband on eithc side. After it has cooled a bit it can be tacked with a small wire nail and the clamps taken off for use on other frames. When all the frames are bent and cooled in shape they must be carefully spaced and fastened securely to the keel with brass screws. The heads of the frames should not be fastened securely as yet, as it may be necessary to slip them a trifle if a frame should be either too full or too slack to fit the planking fairly. When the frames are all in you are ready to begin planking, but first must finish cutting your rabbet forward, I have never been able to find any one who could explain this operation so as to make it clear, and doubt my own ability to do so, so will leave you to puzzle it out for

yourself, as I did in my first attempt at boat building, and I feel sure that after a bit of hard thinking and a little piece of your planking to guide you in getting the proper bevels you will be able to see the thing for yourself much more clearly on the boat itself than I could possibly make it on paper.

Now for the mysteries of planking and spiling: First take

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