← Back to Fleet Database

SM U-81-Class (Mid-War Ocean-Going)

GER Submarine WWI Tier 1 Power 8.73

Mid-War Ocean-Going - Enhanced Endurance & Dual Guns - 6 boats commissioned 1916: U-81 to U-86. Mid-war ocean-going U-boat with enhanced endurance. 757 tons surfaced, 4× 50cm torpedo tubes, 7 torpedoes carried, 16.8 knots surfaced/9.4 knots submerged. Enhanced range (8,500 nm!), 2× 8.8cm deck guns (dual armament!), improved 2,300 HP diesels. Strengthened hull construction. Mediterranean operations, long-range commerce raiding. Mid-war improvements over U-31 class.

Specifications

Displacement (std)
808 t
Displacement (full)
952 (submerged) t
Length
229.9 ft
Beam
20.7 ft
Crew
36
Ships built
6
Commissioned
1916
Decommissioned
1918-1920

Performance

Top speed
16.8 kn
Range
8500 nm at 8 knots surfaced

Armament

Secondary guns
None
Torpedoes
4× 50cm (2 bow, 2 stern)

Armor & Systems

Belt
None

In-Game

Tier
T1
Game power
8.73
Research cost
192
Credit cost
6,111

Notable

Historical source ↗