SHIP BUILDING. 
in the middle, from the lines at the several 
breadths, being set down on their coiTes- 
ponding timbers, from the under side of the 
gun deck in the sheer plan, and a curve 
there drawn to pass through these several 
spots, will represent tlie hang, or sheer of 
the gun-deck at the side, and thus may the 
round-up of each deck, at the side, be 
shown in the sheer plan, according to its 
round up at the broadest place. 
Now for the under side of the gun deck 
ports, draw a curve line, 2 feet 8 inches 
. above the gun deck line, at the side, in the 
sheer plan'; and another parallel line, drawn 
I 2 feet 8 inches above the lower side, will 
show the upper side of the gun deck ports. 
Then for the fore side of the foremost port, 
set off 9 feet 5 inches before timber S, and 
for its aft-side 6 feet 5 inches. Then for 
the fore-side of all the ports abaft the fore 
one, set off 4 feet inches before the 
joint of every other frame beginning at 
frame 32 ; then 3 feet 5 inches set otF abaft 
each of their fore sides will give the aft side ; 
then square up their sides between the 
lines drawn for their lower and upper sides 
and all the 15 ports for the gun deck will 
be represented. 
Then draw the upper deck, at the side, 
as directed for the gun deck ; and for the 
upper-deck ports two curves, parallel above 
the deck at the side, the lower one 2 feet 
2 inches, and the upper line 2 feet 8 jnches 
above that; then set off, before timber S, 
4 feet 4 inches for the fore-side of the fore- 
most port, and 3 feet abaft it for the aft- 
side, then continue to set off 3 feet, exactly 
midway, between each gun deck port, and 
one abaft the after gun deck port, and 
square up their sides, and 15 ports will be 
represented for the upper deck. 
In the same manner must the quarter- 
deck and forecastle ports, and even those 
on the round-house, if any be drawn, keep- 
ing them at equal distances, as near as pos- 
sible, as their situations must depend on 
keeping them clear of the shrouds. The 
quarter deck ports on each side are 7 in 
number, the lower side 23 inches above 
the deck, at the side 2 feet 7 inches deep, 
and 2 feet 10 inches fore and aft, and the 
same on tlie forecastle, only 3 in number,. 
Now the wales may be drawn in the 
sheer plan, and as the strength of the ship 
depends much on their situation, great care 
should be taken in not placing them so high 
as to be cut by the gun deck ports, and yet 
so placed as to take as many of the bolts as 
come through the gun deck kijees as possi- 
ble, and that they come as near on the 
broadest part of the ship as the foregoing 
circumstances will admit; therefore for the 
height of the lower edge, set up above the 
upper edge of the keel, at the fore-side of 
the rabbit at the stem, 22 feet 7 inches ; at 
S, 21 feet 2 inches; at O, 20 feet 4 inches i 
at K, 19 feet 9 inches ; at F, 19 feet ; at 
0, 18 feet 8 inches ; at 6, 18 feet 8j inches; 
at 12, 18 feet 10 inches; at 18, 19 feet 5 
inches ; at 24, 20 feet 4 inches ; at 30, 21 
feet 10 inches; and at 36, 23 feet 11 inches. 
Then a curve drawn through these heights 
will be the lower edge of the wale, and an- 
other curve drawn 4 feet 4 inches, parallel 
above it, will be the upper edge of the 
wale ; but observe the lower edge of the 
wale close aft, curves up very quick, owing 
to the .sudden turn of the body at that 
place. 
The heights and breadths of the channel 
wales may be next drawn ; and as it may 
be readily seen from their situation they 
are intended to strengthen the top side, 
they therefore must be placed as nearly as 
possible between the lower and upper deck 
ports, and their lower edge, along the mid- 
ships, should be placedso low as only to pre- 
vent their being cut by the upper stops of 
the gun deck ports, to prevent the upper edge 
being wounded by the upper deck ports, 
afore and abaft, therefore for the height 
of the lower edge, set up above the upper 
edge of the keel, at the fore side of the rab- 
bit on the stem, 30 feet; at S, 29 feet; at 
O, 28 feet 5 inches ; at K, 27 feet 11 inches ; 
at F, 27 feet 6 inches ; at 0 27 feet 3 
inches; at 6, 27 feet 6 inches; at 12, 28 
feet ; at 18, 28 feet 8 inches ; at 24, 29 feet 
8 inches; at 30, 30 feet 7 inches; and at 
36, 32 feet. Then a curve drawn through 
these heights will be the lower edge of the 
channel wale, and another curve drawn 3 
feet, parallel above it, will be the upper 
edge, thus the channel wale will be repre- 
sented. 
Now to complete the top side, the several 
rails, drifts, &c. remain to be described. 
Therefore set forward, from the aft side of 
the middle stern timber, 51 feet, the length of 
the round-house, and this should be no longer 
than may be just sufficient for the neces- 
sary accommodations, as the shorter the 
round-house the lower the top side may be 
kept abaft ; and likewise the stern, as a 
low snug stern always appears handsome, 
and is best, as a proof of this, and the objec- 
tion of lofty quarters abaft, several ships in 
the navy have their round-houses taken 
