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unmerged(881)

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Feb 8, 2001
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How to read the diagrams

  • Each diagram lists the research fields required for research of the item.
  • Each diagram lists the specific theories and applications required for research of the item.
  • Some diagrams have warnings about the effects of certain research choices so be mindful of them before making your selection.

Points to keep in mind
  • The diagram threads use the same ID numbering system as State Machine's Technology Charts and Analysis pages and (of course) the Hearts of Iron tech database.
  • Many research items have the effect of deactivating other research choices e.g. research of an Improved Medium Tank with a 40mm+ Tank Gun automatically deactivates the 20mm+ and 30mm+ research options.
  • The diagrams list only the specific components needed for research. Be mindful of the fact that many of these components might require that multiple sub-components of their own be researched before your research goals can continue.
  • The diagrams are listed in platform groups e.g. all Light Tanks are listed together to aid in searching... at least how I would search if I was looking for something. :D
  • My use of colors, specifically blue, indicates only the required prerequisites that are part of the research progression (e.g. the 40mm+ requires successful research of the 30mm+ tank gun) and are components of a given diagram item.
  • Your research choices could very well result in an item I have marked green being listed as [color=FF9933]in the process of being researched[/color] or already successfully researched.
 
Airborne Assault Doctrine

Required research fields:

Air Warfare Doctrines
Heavy Aircraft Research

Required components

Level 0 Theory:
Great War Experience Analysis

Level 2 Application:
Airborne Assault Training


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched
 
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Point Anti-Air Defense Doctrine

Required research fields:

Air Warfare Doctrines
Artillery Research

Required components

Level 0 Theory:
Great War Experience Analysis

Level 2 Application:
Multi-Barrelled Anti-Air Guns


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Home Chain Doctrine

Required research fields:

Air Warfare Doctrines
Electronics Research

Required components

Level 1 Theory:
Pre-War Field Testing

Level 0 Application:
Basic Decimetric Radar Warning Sites


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Sheltered Airfields Doctrine

Required research fields:

Air Warfare Doctrines
Electronics Research

Required components

Level 1 Theory:
Pre-War Field Testing

Level 0 Application:
Basic Decimetric Radar Warning Sites


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Area Anti-Air Defense Doctrine

Required research fields:

Air Warfare Doctrines

Required components

Level 2 Theory:
Early War Experience Analysis

Level 2 Application:
Point Anti-Air Defense Doctrine


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Vertical Envelopment Doctrine

Required research fields:

Air Warfare Doctrines
Heavy Aircraft Research

Required components

Level 2 Theory:
Early War Experience Analysis

Level 2 Application:
Airborne Assault Training


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Air-Land Battle Doctrine

Required research fields:

Air Warfare Doctrines
Land Warfare Doctrines

Required components

Level 3 Theory:
Early War Combat Testing

Level 2 Applications:
Combined Arms Warfare Doctrine
Combat Training Team Doctrine



Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
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Bomb-Runner Doctrine

Required research fields:

Air Warfare Doctrines
Heavy Aircraft Research

Required components

Level 3 Theory:
Early War Combat Testing

Level 2 Application:
Carpet Bombing Doctrine

Level 5 Application:
Basic Decimetric Airborne Radar Navigation


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Radar Scout Doctrine

Required research fields:

Air Warfare Doctrines
Electronics Research

Required components

Level 3 Theory:
Early War Combat Testing

Level 2 Applications:
Basic Decimetric Airborne Interceptor Radar
Combat Training Team Doctrine



Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Airborne Invasion Organization

Required research fields:

Air Warfare Doctrines

Required components

Level 4 Theory:
Late War Experience Analysis

Level 2 Application:
Carpet Bombing Doctrine


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Close Air Support Doctrine

Required research fields:

Air Warfare Doctrines
Infantry Research

Required components

Level 4 Theory:
Late War Experience Analysis

Level 3 Application:
Air-Land Battle Doctrine

Level 11 Application:
Forward Observer Ground Bomber Directing


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Terror Bombing Doctrine

Required research fields:

Air Warfare Doctrines

Required components

Level 4 Theory:
Late War Experience Analysis

Level 2 Application:
Carpet Bombing Doctrine


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.