U-4501

12.8

Submarine | Germany | Tier X

Tech Tree Position

Battle Levels

12345678910

X

34,650

U-4501 — German Tier X submarine.

A project for relatively small submarines (Type XXVI), armed with ten torpedo tubes and capable of achieving high speeds while submerged.

Modules

	Hit Points (HP)	Armor (mm)	Armor (mm)	Main Turrets (pcs.)	Secondary Gun Turrets (pcs.)	AA Mounts (pcs.)	Torpedo Tubes (pcs.)	Hangar Capacity (pcs.)		Research price (exp)	Purchase price ()
U-4501	14,100	16	25				10			0	0

	Rate of Fire (shots/min)	Torpedo Tubes Reload Time (sec)	180° Turn Time (sec)	Maximum Damage (HP)	Torpedo Speed (knot)	Torpedo Range (km)		Research price (exp)	Purchase price ()
G7e T4 and G7e T4 MZ	1	60	15	8,633	82	10		0	0

	Rate of Fire (m/s)	Torpedo Range (km)		Research price (exp)	Purchase price ()

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 7,500 hp	20		0	0

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6

Player Opinion

Pros:

Pre-sunk

Cons:

Not always

Research

As a premium ship, U-4501 has no module upgrades to research.

Optimal Configuration

Upgrades

The recommended upgrades are:

Slot 1:
Slot 2:
Slot 3:
Slot 4:
Slot 5:
Slot 6:

Commander Skills

Recommended Commander Skills
Cost (points)	Attack			Defense
1	Enhanced Sonar -10% to sonar reload time when the boat is detected by an enemy.	Liquidator +30% chance of a torpedo strike causing flooding.	Helmsman Within 15 seconds of using the Hydrophone consumable: -10% to the shift times of the rudder and dive planes.	Priority Target The detection indicator additionally shows the number of opponents that are currently aiming at you with their main battery guns.	Incoming Fire Alert A warning about a salvo fired at your ship from a distance of more than 4.5 km.
2	Improved Battery Capacity +10% to the total Dive Capacity -20% Dive Capacity Recharge Rate per second.	Torpedo Crew Training -15% torpedo tubes reload time while detected by an enemy.	Consumables Enhancements +5% to the action time of the boat's consumables.	Preventive Maintenance -30% to the risk of the main turrets [sic], torpedo tubes, steering gear, or engine becoming incapacitated.	Last Stand The boat remains partially able to sustain speed and maneuverability with the engine and steering gears incapacitated.
3	Enhanced Impulse Generator If less than 33% of the maximum dive capacity remains: +15% sonar ping velocity.	Sonarman +25% to the duration of a ping effect on a sector highlighted once. -15% to the duration of a ping effect on a sector highlighted twice.	Consumables Specialist -15% to the preparation and reload time of the boat's consumables.	Watchful If undetected, displays an indicator showing that the boat is within range of activated enemy Hydroacoustic Search, Surveillance Radar, or Submarine Surveillance consumables. If you change depth while the indicator is displayed, you may be detected..	Superintendent +1 charge to all consumables.
4	Adrenaline Rush For every 1% of HP lost, –0.25% to each of: * Main battery reload time * Sonar cooldown time * Torpedo tube reload time * Airstrike armament reload time * Secondary battery reload time.	Torpedo Aiming Master When launching homing torpedoes at a ship with a sector that is highlighted twice, torpedo damage is increased. The sector highlighted twice needs to remain active until the torpedoes hit the ship. +15% to torpedo damage.	Sonarman Expert When a sector is highlighted within 30 seconds of using the Hydrophone consumable: +25% to ping effect duration.	Improved Battery Efficiency If less than 50% of the maximum dive capacity remains: +25% Dive Capacity Recharge Rate per second.	Enlarged Propeller Shaft While less than 50% of the maximum dive capacity remains: +18% to the boat's speed on the surface and at periscope depth.
Key: ★★★ - Extremely Useful ★★ - Frequently Useful ★ - Occasionally Useful No stars - Not Useful

Consumables

U-4501 equips the following consumables:

Slot 1: Damage Control Party  – 3 charges
Slot 2: Hydrophone 
Slot 3: Submarine Surveillance 
Slot 4: Reserve Battery Unit  – 2 charges
Slot 5: Repair Party  – 2 charges

Camouflage

As a premium ship, U-4501 comes with Default permanent camouflage and a set of permanent combat bonuses.

Signals

Recommended Signal Flags
Combat
Juliet Charlie -100% to the risk of magazine detonation.	Juliet Yankee Bissotwo -20% to flooding duration.	India Yankee -20% to fire duration.	Hotel Yankee -20% to damage received when ramming the enemy. +50% to damage dealt when ramming the enemy.	Victor Lima +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +4% chance of torpedoes causing flooding.	India X-Ray +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +5% to the risk of your ship's magazine detonating.
Juliet Whiskey Unaone +15% chance of causing flooding. +5% to the risk of your ship's magazine detonating.	Mike Yankee Soxisix +5% to secondary battery maximum firing range. -5% to maximum dispersion of secondary battery shells. -5% to secondary battery loading time.	November Echo Setteseven +5% continuous AA damage at all ranges. +5% damage from flak bursts.	Sierra Mike +5% to the ship's maximum speed.	November Foxtrot -5% reload time on all consumables.	India Delta +20% to the amount of HP recovered when Repair Party  is used.
X-Ray Papa Unaone +10% action time of a Smoke Generator .	Sierra Bravo +10% action time of Hydroacoustic Search  -10% reload time of Defensive AA Fire .

Note: Use of the Juliet Charlie signal makes detonation impossible.

Gallery

References

Ship Change Log

See here for links to Update notes.

Available for testing by supertesters in the game during the Update 0.11.5 Public Test and again from Update 12.6.

Testing Changes

May 27, 2022:
- Preliminary characteristics (Thanks to Yuzorah at The Daily Bounce for listing stats as none were officially published in the dev blog).
DevBlog 329:
- Added dispersion when launching torpedoes:
  - 11 ° for bow and 16 ° for stern tubes.
DevBlog 332:
- Changed the dispersion when launching torpedoes:
  - For bow tubes - reduced from 11 ° to 3 °.
  - For stern tubes - reduced from 16 ° to 5 °.
- Sonar ping range reduced from 14 to 6.3 km. Now it has the same value as the range of homing torpedoes.
Update 0.11.5:
- Replaced the rotation of torpedo launchers with torpedo turning mechanics.
- Fixed a bug that caused the submarine at the start of each new battle to select a torpedo type that was different from the last selected type in the previous battle.
- Fixed a bug that prevented the submarine's torpedo reticles from turning to follow the sonar.
Update 0.11.6 (Unlisted changes that occurred alongside DevBlog 338):
- Changes to speed and turning circle radius:
  - Surface speed increased from 19 to 20 knots.
  - Underwater speed decreased from 41 to 36 knots.
  - Turning circle radius decreased from 390 to 350 meters.
Update 0.11.7 (Unlisted changes that occurred alongside DevBlog 348):
- Removed the Hydrophone consumable.
- Added the Echo-Ranging Set consumable (Renamed to the Hydrophone consumable with the update's release) with the following settings:
  - Action time: 30 s.
  - Reload time: 80 s.
  - Interval between pings: 6 s.
  - Ship bearing effect duration: 4 s.
  - Ship bearing distance: 8 km.
  - Number of charges: Unlimited.
- Added the Low-Frequency Hydrophone consumable (Renamed to the Submarine Surveillance consumable with the update's release) with the following settings:
  - Action time: 60 s.
  - Reload time: 120 s.
  - Submarines' spotting range: 9 km.
  - Number of charges: Unlimited.
  - Preparation time: 360 s.
- Disabled guaranteed detection for the submarine in the submerged position.
- The visual effects above the submarine when using sonar is now also displayed for the submarine herself.
Update 0.11.8:
- Added a visual distinction between the effect of acoustic homing torpedoes and regular ones.
- Fixed a bug that caused Credits to be deducted for resupplying only a part of the submarine's ammunition.
- Fixed a bug that caused tooltips to overlap the screen with the composition of teams when playing the submarine.
DevBlog 370:
- With the release of Update 0.11.9:
  - Preparation time for the Submarine Surveillance consumable reduced from 360 to 330 s.
Update 0.11.9:
- Readded the ping movement effect.
- Added a special indicator to notify players when there is little diving capacity remaining.
- Updated the set of sound effects for torpedo launching.
- Updated the icon for acoustic homing torpedoes.
DevBlog 454:
- New set of preliminary characteristics, incorporating the following changes:
  - Diving plane shift time increased from 11 to 19 s.
  - Dive capacity reduced from 350 to 210 units.
  - Dive capacity recharge rate increased from 0.8 to 2 units/s.
  - Acoustic torpedo range increased from 6.3 to 8.5 km
  - Torpedo tube reload time reduced from 91 to 60 s.
  - Sonar range increased from 6.3 to 8.5 km.
  - Added the "Repair Party" consumable which can be used only in the surfaced position.
DevBlog 459:
- Acoustic torpedo range increased from 8.5 to 9 km.
- Sonar range increased from 8.5 to 9 km.
- Alternative torpedo speed increased from 62 to 65 kt.
- Alternative torpedo range increased from 6.3 to 7.5 km.
- Rudder shift time reduced from 4.9 to 4.6 s.
DevBlog 470:
- Removed alternative torpedoes.
- Torpedo arming distance increased.
- Changed the parameters of the sonar:
  - Reload time increased from 7 to 12 s.
  - Ping velocity increased from 500 to 600 m/s.
  - Initial and final width of impulse will now have the same stats as standard German submarines.
  - Increased the indicated hit area of sonar pulse.
- HP increased from 10,200 to 14,100.
- Maximum dive and ascent speed increased from 1.5 to 3.4 m/s.
- Submarine Surveillance consumable range reduced from 9 to 6 km.
DevBlog 477:
- Acoustic torpedo range increased from 9 to 10 km.
- Sonar range increased from 9 to 10 km.
- Marked sector width increased from 30 to 40 m.
DevBlog 481:
- Maximum damage of acoustic torpedoes increased from 8,633 to 9,233.

Ships of Germany

Destroyers	II V-25 • III G-101 • IV V-170 • V T-22 • VI Ernst Gaede • VI T-61 • VI Karl von Schönberg • VII Leberecht Maass • VII Z-31 • VII Z-39 • VIII Z-23 • VIII Gustav-Julius Maerker • VIII Z-35 • IX Z-46 • IX Felix Schultz • IX Z-44 • IX ZF-6 • X Z-52 • X Elbing • X Z-42
Cruisers	I Hermelin • II Dresden • II Emden • III Kolberg • IV Karlsruhe • V Königsberg • VI Nürnberg • VI Admiral Graf Spee • VI Leipzig • VI HSF Admiral Graf Spee • VII Yorck • VII München • VII Weimar • VIII Admiral Hipper • VIII Prinz Eugen • VIII Mainz • VIII Schill • VIII Mainz B • VIII Cross of Dorn • IX Roon • IX Siegfried • IX Ägir • IX Admiral Schröder • IX Roon CLR • X Hindenburg • ★ Clausewitz
Battleships	III Nassau • III Von der Tann • III König Albert • IV Kaiser • IV Moltke • V König • V Derfflinger • VI Bayern • VI Mackensen • VI Prinz Eitel Friedrich • VII Gneisenau • VII Prinz Heinrich • VII Scharnhorst • VII AL Prinz Heinrich • VII Scharnhorst B • VIII Tirpitz • VIII Bismarck • VIII Zieten • VIII Odin • VIII Brandenburg • VIII Anhalt • VIII Tirpitz B • IX Friedrich der Grosse • IX Prinz Rupprecht • IX Pommern • IX Pommern B • X Grosser Kurfürst • X Schlieffen • X Preussen • X Mecklenburg • ★ Hannover
Aircraft Carriers	IV Rhein • VI Weser • VI Erich Loewenhardt • VIII August von Parseval • VIII Graf Zeppelin • VIII Graf Zeppelin B • X Manfred von Richthofen • X Max Immelmann

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U-4501

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Compatible Upgrades