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Naval Tech Tree

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Destroyer

Great War Destroyer

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type destroyer
  • New Model destroyer 0

5 - naval_engineering - Great War Destroyer Hull

5 - naval_engineering - Great War Destroyer Propulsion

5 - naval_artillery - Naval Gun 100

5 - electronics - Great War ASW Equipment

5 - technical_efficiency - Great War Destroyer Prototype Testing (D)

Early Destroyer

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model destroyer 1
  • Convoy Escort Efficiency 0.05

5 - naval_engineering - Early Destroyer Hull

5 - naval_engineering - Early Destroyer Propulsion

5 - naval_artillery - Naval Gun 100

5 - electronics - Early ASW Equipment

5 - technical_efficiency - Early Destroyer Prototype Testing (D)

Basic Destroyer

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. destroyer 0
  • New Model destroyer 2
  • Convoy Escort Efficiency 0.05

5 - naval_engineering - Basic Destroyer Hull

5 - naval_engineering - Basic Destroyer Propulsion

5 - naval_artillery - Naval Gun 120

5 - electronics - Basic ASW Equipment

5 - technical_efficiency - Basic Destroyer Prototype Testing (D)

Improved Destroyer

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • Model is now obsolete. destroyer 1
  • New Model destroyer 3
  • Convoy Escort Efficiency 0.05

5 - naval_engineering - Improved Destroyer Hull

5 - naval_engineering - Improved Destroyer Propulsion

5 - naval_artillery - Naval Gun 120

5 - electronics - Improved ASW Equipment

5 - technical_efficiency - Improved Destroyer Prototype Testing (D)

Advanced Destroyer

  • Historic Year: 1941
  • Prerequisites:
  • Effects:
  • New Model destroyer 4
  • Model is now obsolete. destroyer 2
  • Convoy Escort Efficiency 0.05

5 - naval_engineering - Advanced Destroyer Hull

5 - naval_engineering - Advanced Destroyer Propulsion

5 - naval_artillery - Naval Gun 120

5 - electronics - Advanced ASW Equipment

5 - technical_efficiency - Advanced Destroyer Prototype Testing (D)

Semi-Modern Destroyer

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model destroyer 5
  • Model is now obsolete. destroyer 3
  • Convoy Escort Efficiency 0.05

5 - naval_engineering - Semi-Modern Destroyer Hull

5 - naval_engineering - Semi-Modern Destroyer Propulsion

5 - naval_artillery - Naval Gun 120

5 - electronics - Semi-Modern ASW Equipment

5 - technical_efficiency - Semi-Modern Destroyer Prototype Testing (D)

Light Cruiser

Great War Light Cruiser

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type light_cruiser
  • New Model light_cruiser 0

5 - naval_engineering - Great War Light Cruiser Hull

5 - naval_engineering - Great War Light Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 120

5 - electronics - Great War Anti-Air Equipment

5 - technical_efficiency - Great War Light Cruiser Prototype Testing (D)

Early Light Cruiser

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model light_cruiser 1

5 - naval_engineering - Early Light Cruiser Hull

5 - naval_engineering - Early Light Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 120

5 - electronics - Early Anti-Air Equipment

5 - technical_efficiency - Early Light Cruiser Prototype Testing (D)

Basic Light Cruiser

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. light_cruiser 0
  • New Model light_cruiser 2

5 - naval_engineering - Basic Light Cruiser Hull

5 - naval_engineering - Basic Light Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 150

5 - electronics - Basic Anti-Air Equipment

5 - technical_efficiency - Basic Light Cruiser Prototype Testing (D)

Improved Light Cruiser

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • Model is now obsolete. light_cruiser 1
  • New Model light_cruiser 3

5 - naval_engineering - Improved Light Cruiser Hull

5 - naval_engineering - Improved Light Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 180

5 - electronics - Improved Anti-Air Equipment

5 - technical_efficiency - Improved Light Cruiser Prototype Testing (D)

Advanced Light Cruiser

  • Historic Year: 1941
  • Prerequisites:
  • Effects:
  • New Model light_cruiser 4
  • Model is now obsolete. light_cruiser 2

5 - naval_engineering - Advanced Light Cruiser Hull

5 - naval_engineering - Advanced Light Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 180

5 - electronics - Advanced Anti-Air Equipment

5 - technical_efficiency - Advanced Light Cruiser Prototype Testing (D)

Semi-Modern Light Cruiser

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model light_cruiser 5
  • Model is now obsolete. light_cruiser 3

5 - naval_engineering - Semi-Modern Light Cruiser Hull

5 - naval_engineering - Semi-Modern Light Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 180

5 - electronics - Semi-Modern Anti-Air Equipment

5 - technical_efficiency - Semi-Modern Light Cruiser Prototype Testing (D)

Heavy Cruiser

Great War Heavy Cruiser

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type heavy_cruiser
  • New Model heavy_cruiser 0

5 - naval_engineering - Great War Heavy Cruiser Hull

5 - naval_engineering - Great War Heavy Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 180

5 - electronics - Basic Surface Ship Torpedo

5 - technical_efficiency - Great War Heavy Cruiser Prototype Testing (D)

Early Heavy Cruiser

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model heavy_cruiser 1

5 - naval_engineering - Early Heavy Cruiser Hull

5 - naval_engineering - Early Heavy Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 180

5 - electronics - Improved Surface Ship Torpedo

5 - technical_efficiency - Early Heavy Cruiser Prototype Testing (D)

Basic Heavy Cruiser

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. heavy_cruiser 0
  • New Model heavy_cruiser 2

5 - naval_engineering - Basic Heavy Cruiser Hull

5 - naval_engineering - Basic Heavy Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 180

5 - electronics - Advanced Surface Ship Torpedo

5 - technical_efficiency - Basic Heavy Cruiser Prototype Testing (D)

Improved Heavy Cruiser

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • Model is now obsolete. heavy_cruiser 1
  • New Model heavy_cruiser 3

5 - naval_engineering - Improved Heavy Cruiser Hull

5 - naval_engineering - Improved Heavy Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 200

5 - electronics - Basic Surface Ship Homing Torpedo

5 - technical_efficiency - Improved Heavy Cruiser Prototype Testing (D)

Advanced Heavy Cruiser

  • Historic Year: 1941
  • Prerequisites:
  • Effects:
  • New Model heavy_cruiser 4
  • Model is now obsolete. heavy_cruiser 2

5 - naval_engineering - Advanced Heavy Cruiser Hull

5 - naval_engineering - Advanced Heavy Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 200

5 - electronics - Improved Surface Ship Homing Torpedo

5 - technical_efficiency - Advanced Heavy Cruiser Prototype Testing (D)

Semi-Modern Heavy Cruiser (CL)

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model heavy_cruiser 5
  • Model is now obsolete. heavy_cruiser 3

5 - naval_engineering - Semi-Modern Heavy Cruiser Hull

5 - naval_engineering - Semi-Modern Heavy Cruiser Propulsion

5 - naval_artillery - Naval Cruiser Gun 200

5 - electronics - Cruiser Ship-to-Ship Missiles

5 - technical_efficiency - Semi-Modern Heavy Cruiser Prototype Testing (D)

Battlecruiser

Great War Battlecruiser

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type battlecruiser
  • New Model battlecruiser 0

6 - naval_engineering - Great War Battlecruiser Hull

6 - naval_engineering - Great War Battlecruiser Propulsion

6 - naval_artillery - Naval Cruiser Gun 200

6 - electronics - Basic Optical Rangefinder

6 - technical_efficiency - Great War Battlecruiser Prototype Testing (D)

Early Battlecruiser

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model battlecruiser 1

6 - naval_engineering - Early Battlecruiser Hull

6 - naval_engineering - Early Battlecruiser Propulsion

6 - naval_artillery - Naval Cruiser Gun 200

6 - electronics - Improved Optical Rangefinder

6 - technical_efficiency - Early Battlecruiser Prototype Testing (D)

Basic Battlecruiser

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. battlecruiser 0
  • New Model battlecruiser 2

6 - naval_engineering - Basic Battlecruiser Hull

6 - naval_engineering - Basic Battlecruiser Propulsion

6 - naval_artillery - Naval Battlecruiser Gun 250

6 - electronics - Advanced Optical Rangefinder

6 - technical_efficiency - Basic Battlecruiser Prototype Testing (D)

Improved Battlecruiser

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • Model is now obsolete. battlecruiser 1
  • New Model battlecruiser 3

6 - naval_engineering - Improved Battlecruiser Hull

6 - naval_engineering - Improved Battlecruiser Propulsion

6 - naval_artillery - Naval Battlecruiser Gun 250

6 - electronics - Basic Decimetric Naval Artillery Radar

6 - technical_efficiency - Improved Battlecruiser Prototype Testing (D)

Advanced Battlecruiser

  • Historic Year: 1941
  • Prerequisites:
  • Effects:
  • New Model battlecruiser 4
  • Model is now obsolete. battlecruiser 2

6 - naval_engineering - Advanced Battlecruiser Hull

6 - naval_engineering - Advanced Battlecruiser Propulsion

6 - naval_artillery - Naval Battlecruiser Gun 250

6 - electronics - Improved Decimetric Naval Artillery Radar

6 - technical_efficiency - Advanced Battlecruiser Prototype Testing (D)

Semi-Modern Battlecruiser

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model battlecruiser 5
  • Model is now obsolete. battlecruiser 3

6 - naval_engineering - Semi-Modern Battlecruiser Hull

6 - naval_engineering - Semi-Modern Battlecruiser Propulsion

6 - naval_artillery - Naval Battlecruiser Gun 250

6 - electronics - Basic Centimetric Naval Artillery Radar

6 - technical_efficiency - Semi-Modern Battlecruiser Prototype Testing (D)

Battleship

Great War Battleship

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type battleship
  • New Model battleship 0

7 - naval_engineering - Great War Battleship Hull

7 - naval_engineering - Great War Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 350

7 - electronics - Basic Optical Rangefinder

7 - technical_efficiency - Great War Battleship Prototype Testing (D)

Early Battleship

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model battleship 1

7 - naval_engineering - Early Battleship Hull

7 - naval_engineering - Early Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 350

7 - electronics - Improved Optical Rangefinder

7 - technical_efficiency - Early Battleship Prototype Testing (D)

Basic Battleship

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. battleship 0
  • New Model battleship 2

7 - naval_engineering - Basic Battleship Hull

7 - naval_engineering - Basic Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 350

7 - electronics - Advanced Optical Rangefinder

7 - technical_efficiency - Basic Battleship Prototype Testing (D)

Improved Battleship

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. battleship 1
  • New Model battleship 3

7 - naval_engineering - Improved Battleship Hull

7 - naval_engineering - Improved Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 400

7 - electronics - Basic Decimetric Naval Artillery Radar

7 - technical_efficiency - Improved Battleship Prototype Testing (D)

Advanced Battleship

  • Historic Year: 1941
  • Prerequisites:
  • Effects:
  • New Model battleship 4
  • Model is now obsolete. battleship 2

7 - naval_engineering - Advanced Battleship Hull

7 - naval_engineering - Advanced Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 400

7 - electronics - Improved Decimetric Naval Artillery Radar

7 - technical_efficiency - Advanced Battleship Prototype Testing (D)

Semi-Modern Battleship

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model battleship 5
  • Model is now obsolete. battleship 3

7 - naval_engineering - Semi-Modern Battleship Hull

7 - naval_engineering - Semi-Modern Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 400

7 - electronics - Basic Centimetric Naval Artillery Radar

7 - technical_efficiency - Semi-Modern Battleship Prototype Testing (D)

Super Heavy Battleship

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • New Model battleship 6

7 - naval_engineering - Super Heavy Battleship Hull

7 - naval_engineering - Super Heavy Battleship Propulsion

7 - naval_artillery - Naval Battleship Gun 460

7 - electronics - Basic Centimetric Naval Artillery Radar

7 - technical_efficiency - Super Heavy Battleship Prototype Testing (D)

Air Carrier

Great War Air Carrier

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type carrier
  • Activate Unit Type cag
  • New Model carrier 0
  • New Model cag 0

7 - naval_engineering - Great War Air Carrier Hull

7 - naval_engineering - Great War Air Carrier Propulsion

7 - aeronautics - Sectional Flight Deck

7 - electronics - Great War Carrier Aircraft Group

7 - technical_efficiency - Great War Air Carrier Prototype Testing (D)

Early Air Carrier

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model carrier 1
  • New Model cag 1

7 - naval_engineering - Early Air Carrier Hull

7 - naval_engineering - Early Air Carrier Propulsion

7 - aeronautics - Experimental Straight Flight Deck

7 - electronics - Early Carrier Aircraft Group

7 - technical_efficiency - Early Air Carrier Prototype Testing (D)

Basic Air Carrier

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model carrier 2
  • New Model cag 2

7 - naval_engineering - Basic Air Carrier Hull

7 - naval_engineering - Basic Air Carrier Propulsion

7 - aeronautics - Straight Flight Deck

7 - electronics - Basic Carrier Aircraft Group

7 - technical_efficiency - Basic Air Carrier Prototype Testing (D)

Improved Air Carrier

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • New Model carrier 3
  • New Model cag 3

7 - naval_engineering - Improved Air Carrier Hull

7 - naval_engineering - Improved Air Carrier Propulsion

7 - aeronautics - Armored Straight Flight Deck

7 - electronics - Improved Carrier Aircraft Group

7 - technical_efficiency - Improved Air Carrier Prototype Testing (D)

Advanced Air Carrier

  • Historic Year: 1941
  • Prerequisites:
  • Effects:
  • New Model carrier 4
  • New Model cag 4

7 - naval_engineering - Advanced Air Carrier Hull

7 - naval_engineering - Advanced Air Carrier Propulsion

7 - aeronautics - Angled Flight Deck

7 - electronics - Advanced Carrier Aircraft Group

7 - technical_efficiency - Advanced Air Carrier Prototype Testing (D)

Heavy Advanced Air Carrier

  • Historic Year: 1943
  • Prerequisites:
  • Effects:
  • New Model carrier 5
  • New Model cag 5

7 - naval_engineering - Advanced Air Carrier Heavy Hull

7 - naval_engineering - Advanced Air Carrier Propulsion

7 - aeronautics - Armored Angled Flight Deck

7 - electronics - Heavy Advanced Carrier Aircraft Group

7 - technical_efficiency - Advanced Air Carrier Prototype Testing (D)

Super Heavy Advanced Air Carrier

  • Historic Year: 1944
  • Prerequisites:
  • Effects:
  • New Model carrier 6
  • New Model cag 6

7 - naval_engineering - Advanced Air Carrier Super Heavy Hull

7 - naval_engineering - Advanced Air Carrier Propulsion

7 - aeronautics - Armored Angled Flight Deck

7 - electronics - Super Heavy Advanced Carrier Aircraft Group

7 - technical_efficiency - Advanced Air Carrier Prototype Testing (D)

Semi-Modern Air Carrier

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model carrier 7
  • New Model cag 7

7 - naval_engineering - Semi-Modern Air Carrier Hull

7 - naval_engineering - Semi-Modern Air Carrier Propulsion

7 - aeronautics - Floating Airbase Deck

7 - electronics - Semi-Modern Carrier Aircraft Group

7 - technical_efficiency - Semi-Modern Air Carrier Prototype Testing (D)

Submarine

Dive Boat

  • Historic Year: 1936
  • Prerequisites: None
  • Effects:
  • Activate Unit Type submarine
  • New Model submarine 0

5 - naval_engineering - Experimental Pressure Hull

5 - naval_engineering - Basic Bronze Periscope

5 - general_equipment - Basic Compass

5 - electronics - Diving Rudder

5 - technical_efficiency - Dive Boat Prototype Testing (D)

Short Range Submarine

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • New Model submarine 1

5 - naval_engineering - Basic Pressure Hull

5 - naval_engineering - Improved Bronze Periscope

5 - general_equipment - Tower Compass

5 - electronics - Underwater Elevation Rudder

5 - technical_efficiency - Short Range Submarine Prototype Testing (D)

Medium Range Submarine

  • Historic Year: 1936
  • Prerequisites:
  • Effects:
  • Model is now obsolete. submarine 0
  • New Model submarine 2

5 - naval_engineering - Improved Pressure Hull

5 - naval_engineering - Steel Periscope

5 - general_equipment - Nautical Gyrocompass

5 - electronics - Submarine Diesel Engine

5 - technical_efficiency - Medium Range Submarine Prototype Testing (D)

Long Range Submarine

  • Historic Year: 1938
  • Prerequisites:
  • Effects:
  • Model is now obsolete. submarine 1
  • New Model submarine 3

5 - naval_engineering - Advanced Pressure Hull

5 - naval_engineering - Basic Schnorkel

5 - general_equipment - Large Fuel Tank Design

5 - electronics - Advanced Torpedo Chambers

5 - technical_efficiency - Long Range Submarine Prototype Testing (D)

Electro Submarine

  • Historic Year: 1944
  • Prerequisites:
  • Effects:
  • New Model submarine 4
  • Model is now obsolete. submarine 2

5 - naval_engineering - Streamlined Pressure Hull

5 - naval_engineering - Improved Schnorkel

5 - naval_engineering - Closed Cycle Engine

5 - electronics - Air Condition and Cooling System

5 - technical_efficiency - Electro Submarine Prototype Testing (D)

Semi-Modern Submarine

  • Historic Year: 1945
  • Prerequisites:
  • Effects:
  • New Model submarine 5
  • Model is now obsolete. submarine 3

5 - naval_engineering - Coated Pressure Hull

5 - naval_engineering - Advanced Schnorkel

5 - naval_engineering - Single Propeller Silent Engine

5 - electronics - Anti-Radar Rubber Coating

5 - technical_efficiency - Semi-Modern Submarine Prototype Testing (D)