Published Resources Details Journal Article
- Notes and Memoranda
- The Engineer
- vol. 82, 18 September 1896, p. 287
A submarine in the process of construction at the yard of the Columbia Ironworks, at Baltimore, was designed to be able to maintain a speed of eight or nine knots per hour submerged to a depth of 60ft. Air for the crew was to be stored in reservoirs, and the supply replenished by a pump connected to a rubber tube terminating in a float on the surface of the water.