The Evolution of Naval ArmamentRobertson, Frederick Leslie
History
The Evolution of Naval Armament
Robertson, Frederick Leslie
Naval art and science -- History; Ordnance, Naval -- History; Warships -- History
To girdle a ship, was to fasten planks along her sides some two or
three strakes above and below the water-line; this had the effect
of adding to her beam and thereby rendering her stiffer under sail.
Incessant girdling seems to have been necessary at this period,
to counter the defective conditions in which English ships were
designed, built, and sent to sea. Ships were consistently restricted
in beam, in compliance with the faulty “establishments,” and under a
mistaken notion that narrowness, in itself, directly contributed to
speed. “Length,” says Charnock, “was the only dimension regarded as
indispensably necessary, by the ancients for their galleys and by the
moderns for galleons. Breadth was not considered, or if considered was
accepted as a necessary evil.” Pepys remarked, “that the builders of
England, before 1673, had not well considered that breadth only will
make a stiff ship.” It was an inquiry ordered by Sir Richard Haddock
in 1684 which brought to light the fulness of the fallacy; ships were
subsequently made broader, and experience showed that a good breadth
was beneficial, not only for stability but for speed and sea-keeping
qualities.
But even if a ship were built initially broad enough, the continual
addition of armament and top-hamper to which she was often subjected
had the effect eventually of impairing her stability. In such a case
there were two remedies: to ballast or to girdle. The former expedient
was objectionable, as it involved an increase both of displacement and
of draught. Girdling was therefore generally practised. By this means
the vessel was made stiffer, her buoyancy was improved, and her sides
were also rendered less penetrable between wind and water. Even if,
when thus girdled, she proved to be less stiff than the enemy this was
not altogether a disadvantage: she formed a steadier gun-platform, her
sides were less strained by the sea and, because her rolling was less
violent, her topmasts were less liable to be sprung. But sufficient
stiffness was necessary to allow of her lowest and heaviest tier of
guns being fought in moderate weather; and for this reason alone,
girdling was preferable to ballasting, in that the former tended to
keep the guns high out of water while the latter brought them nearer
the water-line.
Public-domain text, read in full here on John Shaqi.
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