|United States F-class submarine|
These boats are (from front to back):
F-4, F-2, F-3, and F-1. Note the "fish" flags and 13-star "boat" ensigns flown by these submarines.
|Operators:||United States Navy|
|Preceded by:||E-class submarine|
|Succeeded by:||G-class submarine|
|Length:||142 ft 6 in (43.43 m)|
|Beam:||15 ft 5 in (4.70 m)|
They were similar to the C-class and D-class submarines built by Electric Boat. Slightly longer than the D-class, four boats were built. They were single-hulled boats with circular sections laid along the longitudinal axis. Overall length was 142 ft-6 in (43.4 m) and the beam was 15 ft-5 in (4.7 m). The E-class and the F-class submarines were the first from Electric Boat to have bow planes.
The hull contained three compartments:
- torpedo room with four 18-inch torpedo tubes,
- control room with the ballast control valves, hydroplane controls and periscope
- engine room with two diesel engines
The two diesel engines were connected to a common shaft. The shaft turned motors that could be used as generators for charging the batteries. The battery was an array of cells in rubber-lined, open-topped, steel jars.
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