She had both an internal combustion engine (specifically, a 4-stroke Otto gasoline engine of ) for running on the surface and charging batteries, and an Electro Dynamic electric motor of for submerged operation, with one shaft.Gardiner and Gray, pp. 126-127 A 66-cell Exide battery powered the electric motor when submerged. This allowed speeds of surfaced and submerged. Surfaced range was at , while submerged range was at . There is significant variation in references as to the vessel's horsepower and speed, for example, the Register of Ships of the U. S. Navy gives horsepower figures of surfaced and submerged, with surfaced and submerged.
she had both an internal combustion engine (specifically a 4-stroke otto gasoline engine of ) for running on the surface and charging batteries and an electro dynamic electric motor of for submerged operation with one shaftgardiner and gray pp 126-127 a 66-cell exide battery powered the electric motor when submerged this allowed speeds of surfaced and submerged surfaced range was at  while submerged range was at  there is significant variation in references as to the vessel's horsepower and speed for example the register of ships of the u s navy gives horsepower figures of surfaced and submerged with surfaced and submerged