Engineering Wonders of the World
Volume I
Forfatter: Archibald Williams
År: 1945
Serie: Engineering Wonders of the World
Forlag: Thomas Nelson and Sons
Sted: London, Edinburgh, Dublin and New York
Sider: 456
UDK: 600 eng - gl.
Volume I with 520 Illustrations, Maps and Diagrams
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THE ARMAMENT OF A BATTLESHIP.
407
DIAGRAM TO SHOW THE APPROXIMATE MAXIMUM DISTANCES TO WHICH GUNS OF VARIOUS CALIBRES
COULD FLING A SHELL FROM THE VICINITY OF ST. PAUL’S CATHEDRAL.
The range of each type of gun is shown by a dotted arrow reaching to a circle at its point.
armament in detail. The eight vessels of
this type carry forty-eight guns each, divided
into the three classes as follows :—
Four 12-inch.........1 .. .
„ n n , y Mam armament.
Four 9-2-moh.........j
Ten 6-inch Q......... Secondary armament.
Fourteen 12-pounder Q. \
Fourteen 3-pounder Q. Tertiary armament.
Two machine-guns..... '
Taking first the 12-inch guns. These are
described as Mark IX., 40 calibre, wire-
wound breechloaders. This, in plain English,
means that they are the number nine pattern
of 12-inch guns, have a barrel forty times the
length of its internal diameter, are made
up on the wire-wound system, and, finally,
are loaded at the breech or back end of the
gun and not by the muzzle.
Wire-wound construction distinguishes Brit-
ish guns from the majority of those mounted
in foreign ships, notably German, which are