Some research I did….possible house or optional rule.

Chinese Aircraft
https://en.wikipedia.org/wiki/Development_of_Chinese_Nationalist_air_force_(1937%E2%80%9345)
By beginning of 1942, Chinese Air Force was wiped out, mostly by the A6M Zero.

Chinese Domestic Assembly (CAMCO)
https://en.wikipedia.org/wiki/Central_Aircraft_Manufacturing_Company

It’s very clear that the only aircraft Nationalist China had was sourced from the USSR or USA via purchase. Also, the Chinese did assemble a small number of aircraft before CAMCO was captured by the Japanese. But this is just assembly of kits sent from other nations. As far as I can tell, there really was no actual domestic production from scratch of Chinese made aircraft or licensed aircraft from other nations.

So, In WiFFE terms, the Nationalist China should not be able to build aircraft, only purchase them from the actual nation of origin. Lend Lease aircraft would be available when such political options are satisfied. Such aircraft needs to be railed, transported or flown to China for them to be available for use.

If using the rule of certain factories having specific production (Factory in Flames) then a foreign major power investor could build a factory producing plant in China as some considerable cost (8 Bp’s or more?).

Theoretically, some other major powers (CW, France, Germany, Japan, and maybe Netherlands) could also sell or Lend Lease aircraft to China for use, if such counters are made available. Note: Germany did train and to a certain extent supply the best Chinese Nat. Divisions until advisers were withdrawn.

Great write up… interesting positioning … But But But, what happened next?

I actually found this more eneritatning than James Joyce.