Navy Testing Drone That Tracks Suspicious Vessels (BAMS / Global Hawk demonstrator) http://www.military.com/news/article/navy-testing-drone-that-tracks-suspicious-vessels.html?comp=700001075741&rank=3
Scott B. said : "Tejas program skips 2011 : Unsurprisingly, our Indian pals continue to procrastinate…" Meanwhile, our South Korean pals deliver : Seoul places $600m order for 20 FA-50s "South Korea has placed a $600 million order with Korea Aerospace Industries (KAI) for 20 examples of the FA-50 attack variant of the T-50 advanced jet trainer […]
Piezoelectricity would be a secondary power source to the AIP system, so it would simply be producing power whenever there was a change in pressure, which would occur all the time. Pressure changes would occur when changing depth, when maneuvering, and from wave action.
I should have added emphasis that my last suggestion is a submarine gunboat (and my arsenal ship the true replacement of the much adored battleships). :)
The piezoelectricity submarine has one problem, it must change the pressure on the crystalls/ceramics in order to obtain electricity. Now moving up and down requires what? well, it requires energy and unfortunately there's no perpetuum mobile in sight. I suggest to replace vertical missile launches and artillery with a vertical electromagnetic elevator […]