萌芽期众说纷纭.夹缝中苦求生存1900年,“霍兰”号潜艇下水。它长约15米,装有45马力的汽油发动机和以蓄电池为动力的电动机,水面速度为7海里/小时,续航1000海里,水下速度为5海里/小时,续航50海里。该潜艇共有艇员5人,水上航行平稳,水下能发射鱼雷,下潜上浮迅速,机动灵活,具有一般水面舰艇无可比拟的作战优势。但是,由于传统的“大舰巨炮”主义思想正主宰美国海军界,美海军高层机构对此可以说是“嗤之以鼻”。1914年7月,第一次世界大战爆发。德国实行无限制潜艇战,潜艇不仅经常神出鬼没地攻击敌国的军 Germination period divergent views. Crack in the pursuit of survival 1900, “Holland” submarine launching. It is about 15 meters long, fitted with a 45-horsepower petrol engine and a battery-powered motor with a surface speed of 7 nautical miles per hour, 1,000 nautical miles of endurance, 5 nautical miles / hour of underwater speed and 50 nautical miles of battery life. The submarine has a total of 5 crew members, smooth water navigation, underwater torpedoes can be fired, dive fast, flexible, with the general surface ships unparalleled operational advantages. However, as the traditional “big-captive artillery” ideology is dominating the U.S. naval community, the U.S. naval top agencies can “scoff” at it. July 1914, the First World War broke out. Unrestricted submarine war in Germany, not only the submarines often ghostly attack the enemy’s army