EXPLANATION OF THE PLATES.
477
of her midship section 63.2 feet; under these circumstances her speed through the
water has been ascertained by careful trials to be 13.5 miles per hour, no other
vessel having yet exceeded the rate of 12.7-
PLATES C. to CIII.
DESCRIPTION OF HER MAJESTY’S STEAM VESSEL OF WAR MEDEA, CON
STRUCTED AND BUILT BY OLIVER LANG, ESQ., MASTER SHIPWRIGHT,
ROYAL DOCK YARD WOOLWICH;—
Shewing the mode of putting her frame together so as to obtain and produce the
greatest combination of strength in connecting the various parts of the ship, and dis
tributing the fastenings equally throughout the fabric.
Light.
Deep.
Feet. In.
Feet. In.
Draught of water
.
7 0
9 1
13 10
14 6
Displacement in tons
• ....
502*81
1230
Area of midship section
168*84
354
The keel was made secure
on his principle of the
“ safety keels ;
” the inner or
solid one, fitted to the floor timbers in midships, and to the deadwood afore and
abaft, with dowels on the upper or faying part, connecting the floors, deadwood and
keel together; the under side of the keel projecting a few inches only beyond the
bottom, protected by a longitudinal piece of timber, fitted all fore and aft on each side,
substituting the chocks usually brought on the heels of the timbers, to fashion them
at that place, and of sufficient size not only to make good the said chocks, but like
wise the plank of the bottom (commonly called the garboard) in one solid substance;
those pieces are placed one on each side of the inner keel, with felt between the
faying surfaces, dowelled and connected together by bolts, driven athwartships
through all and clenched on a ring at the outer sides of the longitudinal pieces, and
likewise in an up and down direction, through the frame timbers, similarly clenched ;
the inner or solid keel as before described, is previously dowelled and bolted in a ver
tical direction through the floors, deadwood and keelson, in addition to those lon
gitudinal pieces or side keels, the ends of the bolts being well clenched on rings, thus
