Type xxi u-boats were a class of german diesel-electric elektroboot (german: "electric boat") submarines designed during the second world war.one hundred and eighteen were completed, with four being combat ready. during the war only two were put into active service and went on patrols, but these were not used in combat.. The u-boat war in world war two (kriegsmarine, 1939-1945) and world war one (kaiserliche marine, 1914-1918) and the allied efforts to counter the threat. over 40.000 pages on the officers, the boats, technology and the allied efforts to counter the u-boat threat.. U-boat: u-boat, (“undersea boat”), a german submarine. the destruction of enemy shipping by german u-boats was a spectacular feature of both world wars i and ii. germany was the first country to employ submarines in war as substitutes for surface commerce raiders. at the outset of world war i, german.
The u-boat war in world war two (kriegsmarine, 1939-1945) and world war one (kaiserliche marine, 1914-1918) and the allied efforts to counter the threat. over 40.000 pages on the officers, the boats, technology and the allied efforts to counter the u-boat threat.. An early submarine design by john p. holland, 1877 (usa) [morris, 1998]. the text on the drawing states that the boat was experimented with in 1878 and contains the autograph of john holland! large picture (1451 x 1130 pixels, 135 kbyte) here.. U-boats were german submarines that caused havoc in world war two during the battle of the atlantic.u-boats were so damaging that winston churchill commented that it was the only time in world war two that he thought britain would have to contemplate surrendering..
