E21

Built By:	Vickers (Barrow)
Build Group:	E Group 2

Fate:

Scrapped in December 1921.

Sank the Austrian merchant ship Vila in March 1918.

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Events

29-11-1914 :	Laid Down
24-07-1915 :	Launched
01-10-1915 :	Completed

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Boats In Class

E Group 2 Specification

Length overall	181'
Beam	15'
Displacement	667 tons (surface)
	807 tons (submerged)
Diving Depth	200'
Speed	Surface 15.25 knots (design)
	Surface 14 knots (service)
	Submerged 10.25 knots (design)
	Submerged 9.5 knots (service)
No. of shafts	2
Propeller	3 blades, 5' 7" diameter
Armament	2 18" bow tubes
	2 18" beam tubes
	1 18" stern tube
	(10 torpedoes carried)
	1 2-pounder gun
Endurance	Surface: 3000 miles at 10 knots (design)
	Surface: 1500 miles on full power or 3000 miles at 10 knots (service)
	Submerged: 99 miles at 3 knots (design)
	Submerged: 10 miles at 9 knots or 65 miles at 5 knots (service)
Complement	30

RN Subs

E21

Events

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Boats In Class

E Group 2 Specification