Military Submarines
*Works Cited Not Included
Military submarines were invented by David Bushnell. He was born in Saybrook Connecticut in 1742, and died in 1824. He built the first military submarine in 1775.
The name of this submarine was, "Bushnell's Turtle." The reason for this is because it looked like two turtle shells fused together to form an egg-like case. Lead ballast kept the craft upright and it was propelled by hand-operated screw-like devices. The submarine was submerged when a valve admitted sea-water into a ballast tank, and rose when the tank was emptied by a hand pump. The armament of the ship included a single gunpowder bomb with a time-fuse. One of the key setbacks to this innovation to warfare was it's lack of an onboard oxygen supply. Lacking this, "Bushnell's Turtle" could only remain submerged for a half hour.
The reason that this type of machine was developed was because Americans were looking for a way to ambush English ships.
Unfortunately though,......

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Title: Submarines
Approximate Word Count: 303
Approximate Pages: 2 (250 words per double-spaced page)

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