From: Denver Colorado
This percentage is basically determines the size of the strike. It is limiting the resources you would like to apply in particular type of mission. If you have not enought planes, just smaller strike will be launched.
What about interdiction percentage in air doctrine? Does higher percentage increase chance it happening or just number of planes per mission?
The WitE wiki was the best source for understanding this.
% Required to fly is your main setting for any air group. It will be considered for missions based first on whether it has the required percent of available aircraft.
Once it meets that check, the next computer decision is how many aircraft to send on any given mission type. The computer comes up with a number X.
For each type of mission thereafter in the settings you can control, you are setting a modifier to X.
If you set Intercept to 50%, then you are telling the computer, "Whatever calculation X you come up with, I want you to only send half that many planes."
So if you set your % Required To Fly very low, say, 30%, and you set your specific mission modifier very low as well, you're going to see a fair number of missions that are executed by a small number of aircraft.
Let's say you had 30 level bombers, and you're settings are 30% required to fly, and 30% modifier to an airbase attack, for example. 30x.3 =9. Assuming you only have 9 ready bombers, and the computer decides to send all 9 on the mission, only 3 will actually fly (.3x9 = 2.7).
Not the same situation if your air units have high readiness, but it's something to think about when you have low readiness to actually increase the setting.
I have also heard that given the macro problems with the air war model, the German is probably better off setting his intercept settings low (thus sending fewer aircraft on missions each time). The justification I've heard is that it's because a high number of Soviet sorties will disproportionally fatigue the German units with few casualties to the Soviet, and eventually a horde of unfatigued, mediocre Soviet pilots cause higher casualties against Germans falling a sleep at the stick...or something. I haven't tested it.
I have noticed that having higher settings on the specific mission types of bombing missions tends to see my attacks be a lot more impactful.
Spring 2018-Playing: Demyansk Shield: Frozen Fortress; Advanced Squad Leader,
Rulebooks: ASL (always ASL), Holland'44, Demyansk Shield: Frozen Fortress