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You may find it easier to avoid turning the round dowel into an oval dowel when tapering by using a David plane, draw knife
or similar as follows:
1.
Slice the dowel (running with the grain), from a round at the start point of the taper to a square at the end of the taper.
2.
Repeat this process so that the dowel runs from round at the start of the taper to an eight sided polygon at the end of
the taper.
3.
Repeat step two as desired so that the dowel runs from a round at the start of the taper to a 16 or 32 sided polygon at
the end, of a diameter marginally more than that required.
4.
Using medium sandpaper, followed by fine sandpaper the taper can be gently sanded round along its length.
The general construction of the masts are identical, therefore, a detailed construction of the foremast only will be given.
Bowsprit
Using Plan Sheet 7 for reference, construct the bowsprit to the dimensions shown. You should note that the bowsprit top and
sides of the bowsprit, at the positioning of the bees, should be filed flat to accommodate the bees and sheaves. Using Plan
Sheet 11 for reference, fit the bees and sheaves (415, 416, 417 & 418), the spritsail yard saddle (334), the jibboom support
(414) and stop cleats constructed from 1.5x1.5mm walnut. The gammoning saddles are constructed from 1.5x1.5mm walnut,
glued to the bowsprit and sanded round.
Note: the ends of gammoning saddles and the spritsail yard saddle should be vertical when the bowsprit is positioned on the
model.
The banding is made from 2mm wide strips of cartridge paper and positioned as shown on Plan Sheet 11.
The bowsprit cap (69) is made as shown on Plan Sheet 11.
Note: it is extremely important that the bowsprit and jibboom holes through the cap are offset to the port as shown, this will
allow the flying jibboom to butt up against the cap when the assembly is complete. It is also important that the cap, when
fitted, is perpendicular to the keel and the top and bottom are bevelled to follow the angle of the bowsprit. The holes through
the cap should also be angled, this can be achieved by drilling small holes and filing them out with needle files.
Note: when the bowsprit assembly is complete, the bowsprit and jibboom are in line with each other while the flying jibboom
is offset at 45 degrees from them, above and to the starboard.
The dolphin striker and jack staff should also be made up and fitted using Plan Sheet 7 & 11 for reference.
Note: the flying jibboom has a vertical notch in the end to accommodate the fore topgallant flagstaff stay (page 18). Likewise,
the dolphin striker has a notch fore and aft in the end to accommodate the fore topgallant flagstaff stay. The dolphin striker also
need three holes drilled fore and aft as shown on Plan Sheet 11, to accommodate the martingales (page 18).
The Fore Lower Mast
Using Plan Sheet 6 for reference, make up the fore lower mast to the dimensions given as follows:
On the top of the fore lower mast, mark out an 8mm square. Follow the lines of the square down the dowel to a distance of
73.1mm.
Using a fine razor saw, saw at right angles across the dowel to each pencil mark at the 73.1mm line. Form the square section
using a craft knife, plane, saw, file or similar.
When completed, mark out the 6mm square on the dowel to a depth of 5mm and repeat the process, making sure that the 6mm
square is central to the 8mm square.
Offer the cheeks (343) to either side of the mast and mark their positions onto the mast. Using a plane, draw knife or similar,
remove the area of the mast on which the cheeks will fit so that the surface of the cheek will sit flush against the mast.
Note: the front and back of the mast in this area should remain rounded with a diameter of 12.7mm.
Before the cheeks are glued into position, it may be an advantage to fit the bands of 2mm wide cartridge paper, that pass under
the cheeks, as shown on Plan Sheet 10.
Glue the cheeks to the mast taking care to ensure they are at the same height as each other, remembering that the 'tops' will be
located directly on top of them.
Identify the fore lower mast top platform (345), gunwale (346), crosstrees (137 & 138) and trestletrees (136). Using Plan
Sheet 6, 'Fore mast tops' for reference, glue the gunwale to the platform and using 1.5x1.5mm walnut for the battens, glue
them to the platform, within the gunwale as shown.
Glue together the crosstrees and trestletrees as shown. The 'notch' in the trestletrees is a locator for the fid of the topmast when
fitted and should be toward the front of the assembly.
Note: the crosstrees are of different lengths, ensure the front is put to the front and the rear is put to the rear in relation to the
fid notch.
When complete, glue the crosstree and trestletree assembly to the underside of the top platform.
At this stage, put the lower mast and top assembly to one side, do not glue them to one another.
Masts & Bowsprit
©
2003 JoTiKa Ltd.
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