Naval doctrine technology

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Doctrine technologies' effects on units are applied immediately, without needing to devote IC to Upgrade.

One-Time Techs

Name Prerequisite Difficulty Research Bonus Year Knowledge on Completion Effects
Carrier Task Force Carrier Group Doctrine - 3
Light Cruiser Escort Role - 3
5 Naval Combat Experience 0.7
Base Strike Doctrine 0.3
1941 Base Strike Doctrine CAG Duty Efficiency +5%
Commerce Defence Battlefleet Concentration - 3
Destroyer Escort Role - 3
5 Naval Combat Experience 0.7
Fleet in Being Doctrine 0.3
1941 Fleet in Being Doctrine Escort Convoy Efficiency +5%
Fleet Auxiliary Carrier Doctrine 5 Naval Combat Experience 0.7
Base Strike Doctrine 0.3
1936 Base Strike Doctrine Carrier Air Group - Organisation +5
Fleet Auxiliary Submarine Doctrine 5 Naval Combat Experience 0.7
Sealane Interdiction Doctrine 0.3
1936 Sealane Interdiction Doctrine Submarine - Positioning +3%
Sea Lane Defence 5 Naval Combat Experience 0.7
Fleet in Being Doctrine 0.3
1936 Fleet in Being Doctrine Allows construction of convoy escorts
Unrestricted Submarine Warfare Doctrine Submarine Crew Training - 3
Trade Interdiction Submarine Doctrine - 3
5 Naval Combat Experience 0.7
Sealane Interdiction Doctrine 0.3
1941 Sealane Interdiction Doctrine Convoy Raiding Organisation Penalty -50%

Scaled Techs

Maximum level of 12

Name Prerequisite Difficulty Research Bonus Start Year First Offset Additional Offset Knowledge on Completion Effects
Basing Sea Lane Defence
Mechanical Computing Machine (Industry technology) - 1
5 Naval Combat Experience 0.7
Sealane Interdiction Doctrine 0.3
1937 1939 2 Sealane Interdiction Doctrine Naval Base Efficiency +20%
Battlefleet Concentration Sea Lane Defence 5 Naval Combat Experience 0.4
Fleet in Being Doctrine 0.3
Capital Ship Practical 0.3
1937 1939 2 Fleet in Being Doctrine Battleship - Positioning +5%
SH Battleship - Positioning +5%
Battleship Crew Training Sea Lane Defence 5 Naval Combat Experience 0.4
Fleet in Being Doctrine 0.3
Capital Ship Practical 0.3
1937 1939 2 Fleet in Being Doctrine Battleship - Organisation +5, Morale +5%
SH Battleship - Organisation +5, Morale +5%
Carrier Crew Training Fleet Auxiliary Carrier Doctrine 5 Naval Combat Experience 0.4
Base Strike Doctrine 0.3
Carrier Practical 0.3
1937 1939 2 Base Strike Doctrine Carrier - Organisation +5, Morale +5%
Escort Carrier - Organisation +5, Morale +5%
Carrier Group Doctrine Fleet Auxiliary Carrier Doctrine 5 Naval Combat Experience 0.4
Base Strike Doctrine 0.3
Carrier Practical 0.3
1937 1939 2 Base Strike Doctrine Carrier - Positioning +5%, Escort Carrier - Positioning +5%
Commander Decision Making Sea Lane Defence 5 Naval Combat Experience 0.7
Fleet in Being Doctrine 0.3
1937 1939 2 Fleet in Being Doctrine Target Choice +5%
Cruiser Crew Training Fleet Auxiliary Submarine Doctrine 5 Naval Combat Experience 0.4
Sealane Interdiction Doctrine 0.3
Capital Ship Practical 0.15
Cruiser Practical 0.15
1937 1939 2 Sealane Interdiction Doctrine Battlecruiser - Organisation +5, Morale +5%
Heavy Cruiser - Organisation +5, Morale +5%
Cruiser Warfare Fleet Auxiliary Submarine Doctrine 5 Naval Combat Experience 0.4
Sealane Interdiction Doctrine 0.3
Capital Ship Practical 0.15
Cruiser Practical 0.15
1937 1939 2 Sealane Interdiction Doctrine Battlecruiser - Positioning +5%
Heavy Cruiser - Positioning +5%
Destroyer Crew Training Sea Lane Defence 5 Naval Combat Experience 0.4
Fleet in Being Doctrine 0.3
Destroyer Practical 0.3
1937 1939 2 Fleet in Being Doctrine Destroyer - Organisation +5, Morale +5%
Destroyer Escort Role Sea Lane Defence 5 Naval Combat Experience 0.4
Fleet in Being Doctrine 0.3
Destroyer Practical 0.3
1937 1939 2 Fleet in Being Doctrine Destroyer - Positioning +5%
Fire Control System Training Sea Lane Defence
Mechanical Computing Machine (Industry technology) - 1
5 Naval Combat Experience 0.7
Fleet in Being Doctrine 0.3
1937 1939 2 Fleet in Being Doctrine Target Chance +5%
Light Cruiser Crew Training Fleet Auxiliary Carrier Doctrine 5 Naval Combat Experience 0.4
Base Strike Doctrine 0.3
Cruiser Practical 0.3
1937 1939 2 Base Strike Doctrine Light Cruiser - Organisation +5, Morale +5%
Light Cruiser Escort Role Fleet Auxiliary Carrier Doctrine 5 Naval Combat Experience 0.4
Base Strike Doctrine 0.3
Cruiser Practical 0.3
1937 1939 2 Base Strike Doctrine Light Cruiser - Positioning +5%
Naval Underway Replenishment Fleet Auxiliary Carrier Doctrine 5 Naval Combat Experience 0.4
Base Strike Doctrine 0.3
Cruiser Practical 0.3
1937 1939 2 Base Strike Doctrine Sortie Organisation Penalty -5%
RADAR Training Fleet Auxiliary Carrier Doctrine
RADAR (Industry technology) - 1
5 Naval Combat Experience 0.4
Base Strike Doctrine 0.3
Cruiser Practical 0.3
1939 1940 2 Base Strike Doctrine Carrier - Surface Detection +1
Escort Carrier - Surface Detection +1
Spotting Sea Lane Defence
Mechanical Computing Machine (Industry technology) - 1
5 Naval Combat Experience 0.7
Sealane Interdiction Doctrine 0.3
1937 1939 2 Sealane Interdiction Doctrine Destroyer - Surface Detection +1
Light Cruiser - Surface Detection +1
Submarine Crew Training Fleet Auxiliary Submarine Doctrine 5 Naval Combat Experience 0.4
Sealane Interdiction Doctrine 0.3
Submarine Practical 0.3
1937 1939 2 Sealane Interdiction Doctrine Submarine - Organisation +6, Morale +6%
Trade Interdiction Submarine Doctrine Fleet Auxiliary Submarine Doctrine 5 Naval Combat Experience 0.4
Sealane Interdiction Doctrine 0.3
Submarine Practical 0.3
1937 1939 2 Sealane Interdiction Doctrine Convoy Raiding Efficiency +6%