Well, HTC would never fix it to where you can "shut down" say Spixteens for a country by bombing. Too much objection. However, I think there might be an alternative. Couple strategic bombing of say "aircraft production facilities" in each country's hinterlands to a sort of sliding ENY/Perk system.
Say one country does extensive bombing of another's a/c production facilities. The La7/Spit16/N1K would not become totally unavailable. Their ENY numbers would just raise, the higher ENY planes might pick up a light perk price, for as long as it takes the production facilities gradually regenerate. (I also think it might be a good idea to introduce a similar principle to ENY in general...you would never be ENYed out of a given plane, you might just have to pay perks to fly it.)
Of course, IMO, this would require that the ENY numbers be revamped to be more logical than they are currently.
You could do similar things for fuel and ammo. Destroy enough of the enemies production facilities for these, and maybe he has to pay 3 perks or so for full fuel and ammo loads.
This plan would hopefully accomplish two things. First, it make high altitude penetration raids by heavies w/escorts useful enough to be done more often than once in a blue moon. Second, it would create a real use for all these fighter perk points most long-timers have lying around piled up to the ceilings.
