The Kind ? U-boat, developed in key during 1933?1944, were a fresh generation of German assault submarines. They would a bit more effective striking force versus Type ?.They had five torpedo tubes, four to the bow and something astern that can carry eleven torpedoes onboard or 22 TMA (23 TMB) mines. In addition they had 88mm fast-firing deck gun and 20mm AA weapon. In the beginning of the war, the 88mm deck tool was in fact very useful in sinking vendor vessels, allowing the greater costly torpedoes to be conserved for bigger and more valuable objectives. These Type ? U-boats were the spark plug concerning the �Wolf Pack�. Their manufacturing is at big people. At exactly the same time, German Navy suffered the big losings regarding the force, losing 784 U-boat, that 519 have been Type ? U-boat.?