Fig. 522
Fig. 523
outside measurement, and long enough to reach from C to about 3½ inches beyond the end of the bow. Now cut a piece of tin ¾ inch wide and 2 inches long. Bend the middle of it round the tube and the ends outward (Fig. 517). Punch holes in each end. Solder this strip round the tube about 4½ inches from one end. At this end file four teeth, about 1/8 inch deep, as in Fig. 518. Now push the end that is not filed through the hole in the stern from the inside of the boat, so that it is flush with the wood, and fasten the other end to the stem of the boat by driving small nails through the holes in the strip of tin into the boat. To prevent water entering the boat put some putty round the tube where it passes through the wood. Before fastening the tube in the boat, round out the end of the bow slightly so that the tube will rest securely on it without projecting too much above the gunwale. Make the deck and fix it as described in Chapter XIV. Bore a hole, D, in Fig. 516, near the stern right through the deck so that it comes out under the counter about 1 inch from the stern-post. It should be large enough for a piece of stout wire to pass through. This is for the rudder.
To make the Rudder. Cut a piece of brass wire about 1/16 inch thick, 6¼ inches long. Cut the rudder out of tin and shape as in Fig. 519. Solder it on to the wire so that the end of the rudder is flush with the end of the wire. Pass the wire through the hole, D, and bend as in Fig. 519. Cut a strip of tin about 1/3 inch in width, punch holes in it, point the ends, bend them over and fasten them into the deck so that the strip is under the bend, E, of the tiller. Press the tiller over and into one of these holes; thus the rudder can be held firm in its required position for steering.
In the middle of the deck cut a hole about ¾ inch in diameter for the funnel, which is a tube of tin about 4 inches long.
The Propeller. Cut a circle of tin 2 inches in diameter and inscribe a hexagon; cut as in Fig. 520, the shaded portions being cut away.
Punch a hole in the centre and into this fix, by soldering, a piece of brass wire (1/16 inch thick), 2 inches long, to form an axle. Warp the fans of the propeller out of the plane of the circle about ¼ inch. Make two pieces of wood shaped as in Fig. 521. Bore a hole through each and by filing with a small round fret-saw file enlarge it to 1/16 inch.