Combat envelope
Range and detection
Every bar uses the same 15 km scale. Surface detection is a visibility threshold, not a weapon range.
Ship Database
Tier X
Submarine
Special
United Kingdom
Seal
A large mine-laying submarine, one of six in the Grampus class. From the earliest days of World War II, HMS Seal undertook diverse missions, including reconnaissance and escort duties. While operating in Scandinavian waters in May 1940, the submarine was damaged and avoided destruction thanks to the heroic efforts of her crew but was ultimately forced to surrender by a German aircraft.
- Doubloons
- 26,000
At a glance
The numbers that shape the ship
- Hit points
- 19,200
- Maximum speed
- 27.0 knots
- Surface detection
- 6.1 km
- Main battery range
- 6.0 km
- Main battery reload
- 5.0 s
Damage comparison
Published maximum per hit
Bars are normalized only against this ship's highest listed hit. They are not salvo damage, expected damage or DPM.
Handling, concealment and protectionOverview
Handling
- Maximum speed
- 27.0 knots
- Turning circle radius
- 490 m
- Rudder shift time
- 7.0 s
Concealment
- Surface detection
- 6.1 km
- Air detection
- 2.2 km
- Submarine detection
- 2.2 km
Survivability
- Hit points
- 19,200
- Torpedo damage reduction
- 0 %
Published armour thickness
Only positive values supplied by the API are shown.
- Overall published range
- 16–25 mm
Weapons and payloadsArmament
Surface armament
Main battery
- Maximum range
- 6.0 km
- Reload time
- 5.0 s
- Rate of fire
- 12.0 rounds/min
- 180° turn time
- 18.0 s
- Maximum dispersion
- 36 m
Gun layout
- Mount
- 102 mm/40 QF Mk.XII on an SI mount
- Mounts
- 1
- Barrels each
- 1
Automatic armament
Secondary battery
Underwater armament
Torpedoes
533 mm Mk IX mod. 1
- Maximum range
- 13.0 km
- Maximum damage per hit
- 13,233
- Reload time
- 75 s
- Speed
- 90 knots
- Detectability
- 1.9 km
Torpedo-tube layout
- Mount
- Torpedo Tubes: Bow Group
- Mounts
- 6
- Tubes each
- 1
Submarine systemsClass system
Dive capacity
- Maximum capacity
- 300.0
- Consumption rate (API value)
- 1.0
- Regeneration rate (API value)
- 0.4
Underwater handling
- Maximum underwater speed
- 16 knots
- Maximum dive/ascent speed
- 3.4 knots
- Dive-plane shift time
- 18.2 s
Sonar ping
- Maximum range
- 13.0 km
- Ping width (API value)
- 15
- Ping velocity (API value)
- 800
- Reload time (API value)
- 9.0
- Single-sector duration (API value)
- 35
- Double-sector duration (API value)
- 75
Modules, hull and progressionTechnical data
Default hull
- Hull hit points
- 19,200
- Main-battery barrels
- 1
- Torpedo tubes
- 6
Engine
- Published maximum speed
- 27.0 knots
Module research tree
Names, research prices and defaults are reported directly by the API.
ASDIC 10 Mod. A
Default- Type
- Sonar
102 mm/40 QF Mk.XII on an SI mount
Default- Type
- Artillery
Propulsion: 4,930 hp
Default- Type
- Engine
Seal
Default- Type
- Hull
533 mm Mk VIII
Default- Type
- Torpedoes
Compatible upgrades
Official modernization descriptions and listed purchase prices. Effects still depend on the slot and configuration used in game.
Propulsion Modification 1
ModernizationReduces time to full speed
- Credits
- 1,000,000
Torpedo Tubes Modification 1
Modernization- Credits
- 500,000
Damage Control System Modification 3
Modernization- Credits
- 250,000
Main Armaments Modification 1
Modernization- Credits
- 125,000
Torpedo Tubes Modification 2
Modernization- Credits
- 3,000,000
Aiming Systems Modification 1
Modernization- Credits
- 500,000
Damage Control System Modification 2
Modernization- Credits
- 1,000,000
Main Battery Modification 3
Modernization- Credits
- 3,000,000
Main Battery Modification 2
Modernization- Credits
- 500,000
Torpedo Tubes Modification 3
Modernization- Credits
- 2,000,000
Gun Fire Control System Modification 2
Modernization- Credits
- 3,000,000
- Available module groups
- 10
- Compatible upgrades
- 11
- Upgrade slots
- 6
- Published battle levels
- 10–11
Cross-nation comparison
Ships that fill a similar slot
Closest same-tier, same-class matches from other nations, ranked by published base statistics.
