Northrop Grumman Shipbuilding on Tuesday delivered the attack submarine New Mexico to the U.S. Navy, four months earlier than its contract delivery date.

诺斯罗普·格鲁门公司的造船厂周二表示，攻击型潜艇新“墨西哥”已经交付给美国海军，比合同的交货日期提前4个月。

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The effect of project delays was underlined this week in a report from the National Audit Office which revealed that the first three new Type 45 destroyers will enter service without sonar defences to protect them against submarine attack.

ECONOMIST: Public investment