Who would have guess a torpedo from the 1870s

[scottfromgeorgia]

 http://edition.cnn.com/video/?/video/us/2013/05/21/dnt-ca-19th-century-torpedo-found.kgtv

[joevann]

Amazing.  I've only seen one Howell torpedo.  They used a fly-wheel for motive force which was spun up prior to launch.  No engine, no fuel, no batteries!