Harvey armor

Harvey armor, though only in use for a decade, was already obsolete.

The resulting Harvey armor was widely used on armoured ships in the 1890s.

The hull was made of 84 watertight compartments, protected with Harvey armor.

She made use of Harvey armor, which was intended to be able to protect against the impact of even an 8-inch armor-piercing shell.

Harvey armor used a single plate of steel, but re-introduced the benefits of compound armor.

These were the first US capital ships to use smokeless powder for their main batteries, and the last to use Harvey armor.

Harvey armor was a type of steel armor developed in the early 1890s in which the front surfaces of the plates were case hardened.

Rostislav had the same hull as Sissoi Veliky, protected with the newly developed Harvey armor.

Armor plating was the newly developed Krupp armor instead of the Harvey armor used by preceding classes.

Their speed was made possible due to another development, Case-hardened steel armor-first Harvey armor and then crucially Krupp armor.

Rossia used newly developed Harvey armor which saved considerable weight over the steel armor used by Rurik for the same amount of protection.

By 1901 almost all new battleships used Krupp armor, though the U.S. continued to use Harvey armor alongside until the end of the decade.

Mars and the other Majestic-class ships had 9 inches (229 mm) of Harvey armor, which allowed equal protection with less cost in weight compared to previous types of armor.

With the exception of the deck armor, 8-inch turrets and conning tower-which consisted of conventional nickel steel-the Indiana class was protected with the new Harvey armor.

Harvey armor was taken up by all of the major navies, since 13 inches of Harvey armor offered the same protection as 15.5 inches of nickel-steel armor.

Further modifications were approved by the Navy Department on 8 October 1898, including adding two more 6 inch/50 caliber guns, moving torpedo tubes from above-water to submerged locations, and dropping the Krupp Cemented armor, returning to the original design with Harvey armor.