Thanks fran for your questions, I try to anwser:
It does have great potential for simulation.Unfortunately my game hasn't a very depth simulation model. I wanna keep it quite simple.
My first thought was why did nobody else think of this before?Dunno, but I know why I did it: as a War Thunder player and a management games lover, I've mixed the two things
Any inclusion of Base protection? For example, the setup of AA batteries to project on enemy raids on airbase.Not yet, but I think about it!
Any inclusion of Base protection: In the Soviet theatre, the setup of patrols against Soviet partisans .There are "random events" between each days. One of them is: bandits/raiders that come to your airfield trying to loot spare parts.
The installation of early warning systems: Including linking to radarNot planned. Well...some concept of radar is already part of gameplay. But is not identified as "radar".
Does it deal with a single airfield? What about repairs for bomber raid requirements vs fighter protection?Sorry I didn't understand.
Interesting choice for Soviet and USA for starter nations, no Brits for Battle of Britain?Oh this is sad part.

I've started the project with 6 nations (USA, USSR, UK, Germany, Japan, Italy), but I have to cut it to just two due to lack of funds.

I'm just a developer and I have to hire graphic artists, sound designers, music composers; so I cannot afford the design for about 30-40 airplanes.
This is why I'll use Kickstarter.
P.S.: apologize; I'm not native english speaker. Hope I was clear.
Carlo