美海军正在为“海豹”突击队建造一种新型潜艇,旨在提高向敌方海岸秘密投送、回撤“海豹”队员的能力。该艇称作高级“海豹”输送系统(ASDS),外形呈雪茄烟状,长65英尺,宽8英尺,装备有一个加压水下进出闸舱室,可运载一个班的“海豹”潜水员及其装备。工程主承包商为诺思罗普·格鲁曼海洋系统公司,首艇预计1999年夏天交付。 The U.S. Navy is building a new type of submarine for the SEALs designed to increase the ability to secretly deliver and withdraw “seals” to enemy coasts. Known as the Advanced Seals Delivery System (ASDS), it is cigar-shaped, 65 feet long by 8 feet wide and equipped with a pressurized underwater access compartment to carry a class of “seal” divers and their equipment. The prime contractor for the project is Northrop Grumman Marine Systems, and the first vessel is scheduled to be delivered in summer 1999.