Show halpine torpedo boat halpine has set to work to overcome the defects of the existing type of torpedo boat he argued that a torpedo which would deliver an explosive charge to a point tn neath the keel heel of a vessel was needed the boat being arranged so BO that after leaving the explosive charge it would move backward and away from the point of explosion t following on this plan he has designed a torpedo boat which after depositing an explosive carrying the case in close proximity to the vestel vessel vest el to be destroyed would be automatically backed to a position of safety this is effectively done by electricity |