History
United Kingdom
Name	HMS F3
Builder	John I. Thornycroft & Company
Laid down	12 October 1914
Launched	9 February 1916
Fate	Broken up, Portsmouth Dockyard 1920
General characteristics
Class and type	F-class submarine
Displacement	353 long tons (359 t) surfaced 525 long tons (533 t) submerged
Length	151 ft (46.0 m)
Beam	16 ft 1.25 in (4.91 m)
Draught	10 ft 7 in (3.23 m)
Propulsion	2 shaft diesels, 2 electric motors, 900bhp/400shp
Speed	14.5 knots (26.9 km/h; 16.7 mph) surfaced 8.75 knots (16.21 km/h; 10.07 mph) submerged
Range	3,000 nmi (5,600 km) at 9 kn (17 km/h; 10 mph)
Complement	19
Armament	3 × 18 in (45 cm) torpedo tubes (2 bow/1 stern), 6 torpedoes 1 × 2-pounder deck gun

HMS F3 was a British F class submarine of the Royal Navy. She was built at John I. Thornycroft & Company, laid down 12 October 1914 and launched 9 February 1916.

F3 was broken up in Portsmouth in 1920.

References

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.