Instruction Manual - Nature Coast Hobby Shop
Instruction Manual - Nature Coast Hobby Shop
Instruction Manual - Nature Coast Hobby Shop
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FIG. 10<br />
FIG. 12 FIG. 14<br />
Bulwark plate clamped in position to determine<br />
bottom edge line.<br />
FIG. 11<br />
Clamping at stern showing variety of clamps that<br />
can be used to hold hull flair curvature.<br />
FIG. 13<br />
The transom plate looking inboard aft.<br />
Bulwark plate clamped during gluing.<br />
Starboard bulwark plate mounted.<br />
10<br />
The bulwark plates are laser cut from<br />
1/32” plywood. These pieces have the<br />
gunport and oarport openings cut into<br />
them (see figure 10). The bow, stern and<br />
bottom sides have been left oversized to<br />
allow fitting to the framework you have<br />
built. The top edge has been accurately<br />
shaped to the top bulwark line. The gunport<br />
openings are cut slightly undersize<br />
to allow proper sizing to the gunport<br />
frames which will be mounted later. The<br />
first thing to do is establish which are the<br />
lower edges of the bulwark plates.<br />
The gunport openings will help. They are<br />
numbered 1 through 11 from bow to<br />
stern. Gunports 5 and 11 should be centered<br />
vertically between bulkhead extensions<br />
“I” and “J” and “T” and “U” respectively.<br />
The top edge of the bulwark<br />
plate has to be 25/32” from the top of the<br />
deck plate at bulkhead “T” and 31/32” at<br />
bulkhead “I.” An additional height check<br />
can be made at bulkhead “A.” It should<br />
be 13/16.” With the bulwark plates set at<br />
these dimensions and clamped in place, a<br />
line should be drawn inboard along the<br />
bulwark plate at the top of the deck plate.<br />
The bulwark plate can be removed and<br />
cut to this line, which establishes its bottom<br />
edge for assembly.<br />
The plates are then remounted to the bulkhead<br />
extensions with clamps at the proper<br />
fore and aft, and vertical settings and<br />
glued in place with slow-set Super glue<br />
(see figure 11). They should be clamped at<br />
each bulkhead to be sure they conform to<br />
the tumblehome and flair curvatures along<br />
the hull (see figure 12). It can be advantageous<br />
to glue in the bottom edges before<br />
clamping to the bulkhead shapes above<br />
deck. To aid in positioning these bulwark<br />
plates, you should refer to the plans and<br />
use the following table as a guide (Also ...<br />
the bow ends tend to flair upward and<br />
should be held firmly in place):<br />
Bulkhead Top edge above deck plate<br />
A................................13/16”<br />
B....................................“<br />
C................................27/32”<br />
D..................................7/8”<br />
E................................ 31/32”<br />
F.....................................“<br />
G....................................“<br />
H....................................“<br />
I......................................“<br />
J......................................“<br />
K................................15/16”<br />
L.....................................“<br />
M...............................29/32”<br />
N............................... 27/32”<br />
O..................................7/8”<br />
P.....................................“<br />
Q................................27/32”<br />
R....................................“<br />
S.................................13/16”<br />
T................................ 25/32”<br />
U..................................3/4”<br />
V................................11/32”<br />
Note: These dimensions are taken along<br />
the outer curved surfaces of the bulwark<br />
extensions which are longer than<br />
the vertical height from the edge of the<br />
deck plate.<br />
These dimensions are for reference only<br />
and depend upon the accuracy of the<br />
deck plate level. A true line is more important<br />
than an actual conformation to<br />
any reference dimension. In addition,<br />
the bulkhead extensions should be<br />
aligned externally to give a true line to<br />
the bulwarks (see figure 13). If some are<br />
below a true line, they should be<br />
shimmed with 1/8” wide basswood<br />
stock. Those that may be too “fat”<br />
should be trimmed down. The 3/16”<br />
width of these extensions will accommodate<br />
any trimming easily. Gross<br />
bumps or indentations are not the intent<br />
of the ship designer, builder, historian,<br />
kit designer or modeler.<br />
7. Transom<br />
The transom piece is also laser cut from<br />
1/32” plywood. Its top is cut to the design<br />
curvature and the gunports are also<br />
cut as they were in the bulwark plates<br />
(see figure 14). The bottom and side<br />
edges have been left longer to allow fitting<br />
to your assembly. This piece should<br />
have a vertical centerline drawn on it between<br />
the gunports.