A torpedo designed to simulate a non-offensive sea animal, like a penguin, in order to get close to a submarine without arousing suspicion.
In addition to the penguin model that inspired this idea, you could launch a school of dolphin-torpedos. Also, a school of fish-shaped charges being dragged forward by a motor concealed in the swarm.-- notmarkflynn, Mar 11 2006 http://www.awionlin...nter03/0103p15a.htm [2 fries shy of a happy meal, Mar 12 2006] State of the art U.S. sub http://www.mymerced...antsdelicollage.jpg [jellydoughnut, Mar 12 2006] Shachihoko robot (w/ quicktime video) http://www.we-make-...archives/008111.phpMaybe something more like this? [jutta, Mar 12 2006] Maybe they could quack?-- jutta, Mar 11 2006 Picturing the penguins from the animated film Madagascar.-- methinksnot, Mar 11 2006 I don't think penguins quack. It would be funny to fix small microphones to dolphins, tuna, and penguins that produce the same sound signature of a missile of the same size.-- jellydoughnut, Mar 12 2006 Efforts to conceal torpedos are nothing new. as rcarty pointed out, they are identified by noise signature, which I guess could be disguised with false noise, but also by wake signature. It's not going to take a submarine captain long to figure out that that huge jet stream behind a manatee is more than just a bowel movement. Also, modern torpedos are huge, and changing the shape to further disguise them means having to improvise completely new guidance systems and having to completely change the shape of the launch tubes. It's not cost-effective.-- 21 Quest, Mar 12 2006 halfbakery