空军学说

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Air doctrine is a technology group that allows a nation to specialize the way its air force conducts air warfare. The doctrine tree consists of three exclusive branches that provide different bonuses.

Air doctrine research tree

Base time to research

The first doctrine research has a base time to research of 191 days. All following doctrines researches have 255 days. By spending 100 Air experience the research speed can be increased by 100%. All other research speed modifiers are added to this.
Research time example:
With the 100% research speed bonus from 100 Air experience spent,
and the 10% research speed bonus from Free Trade,
the resulting research time is:
[math]\displaystyle{ \text{Research Time} = 255/ (1 + 100% + 10%) = 255 / 2.1 \approx 121 \text{ days} }[/math]

Doctrine Branches

Strategic Destruction

By bombing the enemies factories, either by night, or more dangerously, during the day we can seriously hinder their war machine.

Battlefield Support

By improving how close air support interacts with divisions we can lay waste to enemy divisions with optimal support.

Operational Integrity

Tactical bombers are flexible and can perform both ground support and regular bombing.

The 德意志国 has enabled the Battlefield Support air doctrine  Formation Flying at game start 1936.

Note: It's possible to change doctrine throughout the game, but all bonuses from the old doctrine are lost, as if completely abandoned, when starting research of a different doctrine tree.

Definitions and terminology

• Fighter Detection: Fighter detection is the chance of finding enemy planes while on an air superiority mission. Reference Detection, Disruption, Damage
• Interception Detection: Interception detection is the chance of finding enemy planes while on an interception detection mission. Reference Detection, Disruption, Damage
• Air Support Mission Efficiency: Air support mission efficiency is the percentage of an air wing's planes that can actually carry out the assigned air support mission. Reference Missions
• Air Superiority Mission Efficiency: Air superiority mission efficiency is the percentage of an air wing's planes that can actually carry out the assigned air superiority mission. Reference Missions
• Interception Mission Efficiency: Interception mission efficiency is the percentage of an air wing's planes that can actually carry out the assigned interception mission. Reference Missions
• Naval Mission Efficiency: Naval mission efficiency is the percentage of an air wing's planes that can actually carry out the assigned naval mission. Reference Missions
• Escort Efficiency: In theory, escort efficiency is the percentage of an air wing's planes that can actually carry out the assigned escort mission. However, the game no longer features escort missions, so this bonus has no effect.
• Strategic Bombing Visibility: Strategic bombing visibility is the chance of being detected by the enemy when on a strategic bombing mission. Reference Detection, Disruption, Damage
• Night Time Strategic Bombing Penalty: Night time strategic bombing penalty is the malus when strategically bombing targets at night.
• Bomber Defense: Bomber Defense is how many hits, represented by hit points (HP), that a bomber can take before being shot down. Reference Heavy Air Frame

List of all doctrines

Strategic Destruction

Air Superiority

• Fighter Detection: +10%

Achieving Air Superiority will make it more difficult for enemy bombers to be used against our country, to allow our bombers to be used against our enemies.

Infrastructure Destruction

• Ground support: +10%

Training our pilots in the best ways to attack infrastructure, like railways and bridges, makes for more effective Tactical bombing.

Home Defense

• Interception Detection: +10%

Spotters on the ground as well as detection and listening posts work in concert with our airforce to track and destroy enemy incursions.

Naval Strike Tactics

• Naval Mission Efficiency: +15%

Training pilots in predicting ship movements and coordinating attacks will make our air raids on enemy ships more efficient.

⇐

二选一

⇒

Fighter Sweeps

• Interception Mission Efficiency: +20%
• Air Wing Mission Experience Gain: +10%

Aggressive patrols of fighters over enemy territory may catch their planes taking off or landing, when they are especially vulnerable, or disrupt enemy training flights.

Dogfighting Experience

• Air Superiority Mission Efficiency: +20%
• Air Wing Mission Experience Gain: +10%

It's not easy to keep track of the relative positions of friends and foes in the hectic swirl of a dogfight, but as our pilots gain experience they become more adept at it.

Multi-Altitude Flying

• Fighter, Heavy Fighter:

• Agility: +10%

Air combat takes place in three dimensions, but most pilots find it harder to keep track of planes flying above or below them. We can take advantages of this by spreading our formations vertically.

Logistical Bombing

• Air Superiority: +15%

A greater focus on attacking the enemy's supply lines from the air gives a greater advantage to our own ground forces in the area.

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二选一

⇒

Night Bombing

• Night-time strategic bombing penalty: −50%

With enemy defenses lowered and our bombers covered by darkness we can stay offensive and efficient around the clock. Show our enemy how persistent we are.

Day Bombing

• Strategic Bombing: +30%

Focused efforts during the day are devastating due to the big advantage of visibility. Projection of power is a welcome side effect.

Massed Bomber Formations

• Strategic Bombing: +20%

By staying in formation our bombers can defend their group and increase our chances of successful bomb drops.

Fighter Escorts

• Escort Efficiency: +25%

With a focus on bombing during the day we need to keep our bombers safe from intercepting fighters. Training our fighter pilots to work closely with the bombers will improve their fighting abilities when protecting the bombers in enemy airspace.

Flying Fortress

• Bomber defense: +25%

Fitting our high-flying heavy bombers with guns to defend themselves and enough armor to take a beating and still return home.

Offensive Formations

• Air Superiority: +15%

Training in more offensively-oriented formations make our fighters deadlier in combat.

Mass Destruction

• Strategic Bombing: +20%

Bombers are equipped with the most devastating weapons in great quantities. Guaranteeing results even if only a few of our pilots get through.

Battlefield Support

Formation Flying

• Fighter Detection: +15%
• Air Wing Mission Experience Gain: +10%

By flying in formation planes can provide support to each other or work together to attack enemies.

Dive Bombing

• Air Support Mission Efficiency: +20%

Dive bombing allows greater accuracy, but for best results it requires specialized aircraft both able to slow their dives and survive the stresses of pulling out of them.

Direct Ground Support

• Ground Support: +20%

By closely coordinating CAS pilots with ground-based observers aerial firepower can be precisely directed to best help troops in battle.

⇐

二选一

⇒

Formation Fighting

• Air Superiority Mission Efficiency: +15%
• Air Wing Mission Experience Gain: +10%

Flying in the right formations allow our pilots to cover each other's blind spots, which leads to an increased ability to spot enemy planes.

Fighter Ace Initiative

• Ace generation chance: +25%
• Air Wing Mission Experience Gain: +10%

Giving special awards and status to pilots who achieve Ace status, by shooting down 5 enemies, incentives risk-taking and brings about a sense of eliteness in Ace pilots - although this does tend to make experienced pilots stay in combat positions.

Hunt and Destroy

• Air Support Mission Efficiency: +20%

As well as offering direct fire support CAS units can independently hunt for targets, often attacking enemy ground forces unexpectedly as they move towards the front lines.

Combat Unit Destruction

• Close Air Support:

• Agility: +20%

Air Superiority: +10%

Training our CAS pilots to repeatedly attack the same target until it is confirmed to be destroyed ensures targets aren't left alone after a near miss.

Battlefield Support

• Air Superiority: +20%

It is difficult for Tactical bombers to attack targets near where our ground forces are in combat, since level bombing is less accurate than dive bombing, but more training and interaction with ground-based observers can help to overcome these problems.

Keypoint Bombing

• Tactical Bomber:

• Strategic Bombing: +10%

Accurately bombing targeted key points on the battlefield in support of our ground forces can greatly help them to defeat the enemy.

Ground Support Integration

• Ground Support: +20%

Fully integrating our Tactical bomber force with ground based observers both increases their accuracy and allows them to directly support our ground forces in combat.

Naval Strike Torpedo Tactics

• Naval Mission Efficiency: +10%

Training pilots to strike more precisely with torpedos will make our air raids on enemy ships more efficient.

Strategic Destruction

• Strategic Bombing: +15%

Our pilots can access strategic targets much faster than our naval or land forces. With no means to equip their new recruits we will soon outnumber the enemy forces.

Forward Interception

• Interception Detection: +15%

By operating closer to enemy airspace it becomes more likely that our fighters can intercept enemy planes before they can reach their targets.

Operational Integrity

Force Rotation

• Interception Detection: +20%
• Air Wing Mission Experience Gain: +10%

Combat, or simply long periods of extensive focus, is exhausting, but by swapping in fresh forces whenever possible we can reduce errors due to pilot fatigue.

Fighter Baiting

• Interception Mission Efficiency: +20%
• Ace generation chance: +10%

By appearing vulnerable, our fighters can lure hostile aircraft into ambushes.

Low Echelon Support

• Ground Support: +10%

By assigning CAS units directly to small ground formations it ensures they always have additional firepower to call on, even when out of range of traditional artillery.

Dispersed Fighting

• Fighter Detection: +20%

Adopting a more dispersed formation allows the same number of planes to patrol a greater area.

Operational Destruction

• Air Superiority: +15%

Attacking the supply lines of enemy ground forces hinders their ability to move between battlefields. This translates to an advantage to our army while operating in areas we have Air Superiority.

Fighter Veteran Initiative

• Fighter, Heavy Fighter:

• Agility: +10%

Air Wing Training Experience Gain: +10%

A focus on long-term pilot survival, both by prudent tactics and by rotating experienced pilots to training positions, means that they can pass on the lessons they have learned to new pilots.

Ground Attack Veteran Initiative

• Air Support Mission Efficiency: +15%
• Air Wing Training Experience Gain: +10%

A policy of having veteran pilots pass on their knowledge to new recruits greatly helps their survival prospects.

Naval Strike Torpedo Tactics

• Naval Mission Efficiency: +10%

Training pilots to strike more precisely with torpedoes will make our air raids on enemy ships more efficient.

Carousel Bombing

• Tactical Bomber:

• Strategic Bombing: +20%

Bombers often simply want to dump all their bombs as soon they they reach their target area and then fly home as soon as possible. While this can work for area-bombing, when it comes to hitting a small target it is more effective to linger over the target, dropping only a portion of their bomb load at a time for maximum accuracy.

Infiltration Bombing

• Strategic bombing visibility: -50%

Joining enemy formations or tailing them back home to base may seem like madness. With enough practice, it is entirely possible.

Air Skirmish

• Air Superiority Mission Efficiency: +20%
• Ace generation chance: +10%

Regrettably, it is not always possible to destroy every single enemy plane found over our country, but it is possible to harass them from the moment they are spotted until the moment they leave, constantly wearing them down.

High Level Bombing

• Bomber Defense: +20%

From higher altitudes we can avoid some aerial engagements and anti aircraft weaponry. Dropping bombs higher up requires more precision, but it is safer.

Table comparison

Modifier

Doctrine with Variation
Strategic Destruction Path L & L	+10%	+10%	+10%	+15%	+20%	0	0	+30%	−50%	+40%	0	+25%	0	0
Strategic Destruction Path L & R	+10%	+10%	+10%	+15%	+20%	0	0	+30%	0	+50%	+25%	+25%	0	0
Strategic Destruction Path R & L	+10%	+10%	+10%	+15%	0	+20%	0	+30%	−50%	+40%	0	+25%	0	0
Strategic Destruction Path R & R	+10%	+10%	+10%	+15%	0	+20%	0	+30%	0	+50%	+25%	+25%	0	0
Battlefield Support Path L	+15%	+40%	+15%	+10%	0	+15%	+40%	+30%	0	+15%	0	0	0	0
Battlefield Support Path R	+15%	+40%	+15%	+10%	0	0	+40%	+30%	0	+20%	0	0	+25%	0
Operational Integrity	+20%	+10%	+20%	+10%	+20%	+20%	+15%	+15%	0	0	0	+20%	+20%	−50%

Unit stats

Doctrine with Variation	Fighter, Heavy Fighter Agility	Close Air Support Agility	Tactical Bomber Strategic Bombing
Strategic Destruction Path L & L	+10%	0	0
Strategic Destruction Path L & R	+10%	0	0
Strategic Destruction Path R & L	+10%	0	0
Strategic Destruction Path R & R	+10%	0	0
Battlefield Support Path L	0	+20%	+10%
Battlefield Support Path R	0	+20%	+10%
Operational Integrity	+10%	0	+20%

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