NOAA
Noaa: National Marine Sanctuaries: Uss Alligator
A website dedicated to the engineering marvel, USS Alligator. Read a history and find blueprints of this innovative submarine. Use the topics on the left to navigate the site. From the National Oceanic and Atmospheric Administration.
PBS
Pbs Teachers: Scientific American: Mysteries of the Deep: Life Sized Drawing
Use a scale drawing of the Hunley as a model from which to draw a full-scale version of the Confederate submarine, the CSS H.L. Hunley.