Editing USS C-4 (section)

==Description==
The ''C''-class submarines were enlarged versions of the preceding [[United States B-class submarine|B class]], the first American submarines with two [[propeller shaft]]s. They had a length of {{convert|105|ft|3|in|m|1}} [[length overall|overall]], a [[beam (nautical)|beam]] of {{convert|13|ft|10|in|m|1}} and a mean [[draft (ship)|draft]] of {{convert|10|ft|10|in|m|1}}. They [[displacement (ship)|displaced]] {{convert|240|LT|t}} on the surface and {{convert|273|LT|t}} submerged. The C-class boats had a crew of 1 officer and 14 enlisted men. They had a diving depth of {{convert|200|ft|1}}.<ref name=f7>Friedman, p. 306</ref>

For surface running, they were powered by two {{convert|240|bhp|lk=in|0|adj=on}} Craig [[gasoline engine]]s, each driving one propeller shaft. When submerged each propeller was driven by a {{convert|115|hp|0|adj=on}} [[electric motor]]. They could reach {{convert|11|kn|lk=in}} on the surface and {{convert|9|kn}} underwater. On the surface, the boats had a range of {{convert|776|nmi|lk=in}} at {{convert|8.13|kn}} and {{convert|24|nmi|abbr=on}} at {{convert|8|kn}} submerged.<ref name=f7/>

The boats were armed with two [[American 18 inch torpedo|18 inch (450 mm)]] [[torpedo tube]]s in the bow. They carried two reloads, for a total of four torpedoes.<ref name=gg9>Gardiner & Gray, p. 127</ref>