miércoles, 19 de septiembre de 2007

The first electrical submarine

On the 8th September, 1888, an electrically powered vessel built by the Spanish engineer and sailor, Isaac Peral, for the Spanish Navy was launched. It had two torpedoes, new air systems, and a hull shape, propeller, and cruciform external controls anticipating much later designs. Its underwater speed was ten knots (19 km/h). In June 1890 Peral's submarine launched a torpedo while submerged. After many successful dives the project was scrapped because of the difficulties of recharging at sea and the short range of battery powered vessels.

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