Page:Statesman's Year-Book 1913.djvu/121

 Graphic Diagram to Illustrate The Varying Ratios between Weight of Heaviest Gun, its Penetrative Power and

the

Protection Affordee

TO Ships during

THE

LAST

Fifty Years

Plate 10.

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!VBY

Sir V

^/lLLIA^

fl White

Sir P Watts

Weight of Biggest Gun In Tons _. Penetration Ratio of Biggest Gun

^OT^^ — All Armour is converted to its ratio in resisting value on the usual rough approximation that

Belt Protection ,

18 inches of Iron — 15 inches Compound— 12 inches Harvey = 9 inches Harvey-Nickel — 6 inches Krupp Cemented