Take the sub out of the cup and remove some sticky ... and the buoyancy of the straw submarine. When in the water, the straw submarine displaces an amount of water equal to its own submerged ...
and is capable of blowing an enemy submarine clean out of the water. Guided by either copper wire or inbuilt sonar, the Spearfish delivers 660 lbs of explosive charge either when it impacts with ...
it can take out mines with ease. The Echo Range is a serious looking drone sub developed by Boeing for the US Navy. Eventually Boeing hopes that it will be able to stay under water for 70 days at ...
The Germans quickly phased out all other submarine construction in favor of ... six were in service, 53 in the water, and 900 under construction or on order. The first Type XXI, U-2511, left ...