Search results
Results from the WOW.Com Content Network
The Parys mine had recently begun large-scale production and had glutted the British market with cheap copper; however, the 14 tons of metal required to copper a 74-gun third-rate ship of the line still cost £1,500, [12] compared to £262 for wood. The benefits of increased speed and time at sea were deemed to justify the costs involved.
Mines can be laid in many ways: by purpose-built minelayers, refitted ships, submarines, or aircraft—and even by dropping them into a harbour by hand. They can be inexpensive: some variants can cost as little as US $2,000, though more sophisticated mines can cost millions of dollars, be equipped with several kinds of sensors, and deliver a warhead by rocket or torpedo.
Military production during World War II was the production or mobilization of arms, ammunition, personnel and financing by the belligerents of the war, from the occupation of Austria in early 1938 to the surrender and occupation of Japan in late 1945.
SS Richard Montgomery is a wrecked American Liberty ship that was built during World War II. She was named after Richard Montgomery, an Irish officer who fought in the American Revolutionary War. [4] She was wrecked on the Nore sandbank in the Thames Estuary, near Sheerness, Kent, England, in August 1944, while carrying a cargo of munitions.
During World War II there were nearly 1,500 instances of significant brittle fractures. Twelve ships, including three of the 2,710 Liberty ships built, broke in half without warning, including SS John P. Gaines , [ 24 ] [ 25 ] which sank on 24 November 1943 with the loss of 10 lives.
[13]: 185 For example, the last US battleship designs during World War II had up to four torpedo bulkheads and a triple-bottom. [ 13 ] : 185 The innermost bulkhead is commonly referred to as the holding bulkhead , and often this bulkhead would be manufactured from high tensile steel that could deform and absorb the pressure pulse from a torpedo ...
SS Robert E. Peary was a Liberty ship which gained fame during World War II for being built in a shorter time than any other such vessel. Named after Robert Peary, an American explorer who was among the first people to reach the geographic North Pole, she was launched on November 12, 1942, just 4 days, 15 hours and 26 minutes after the keel was laid down.
Armour-piercing ammunition (AP) is a type of projectile designed to penetrate armour protection, most often including naval armour, body armour, and vehicle armour. [1]The first, major application of armour-piercing projectiles was to defeat the thick armour carried on many warships and cause damage to their lightly armoured interiors.