Military Wiki
United States F-class submarine
USN F-class submarines;h63259.jpg
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.
Class overview
Builders: Electric Boat
Operators:  United States Navy
Preceded by: E-class submarine
Succeeded by: G-class submarine
Built: 1911-1912
In commission: 1912–1922
Completed: 4
Retired: 4
General characteristics
Type: Submarine
Length: 142 ft 6 in (43.43 m)
Beam: 15 ft 5 in (4.70 m)
Propulsion: Diesel engines
Electric motors
1 shaft

The F-class submarines were a group of four submarines designed for the United States Navy by Electric Boat in 1909.


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:

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.

See also


The Loss of the USS F-1

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