On the front and top were primitive propellers that could be turned from inside to provide movement. ... Bushnell's failure set the stage for the submarine as a warship for the future. ... There were mixed emotions by the admiralty on either side of the front. ... By 1900, France had fourteen submarines in commission and thirty-eight more in the planning stage (Horton 56). ... This was the stage where the U-boat made its best performance. ...

• Word Count: 1988
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School