[btaft]

I am looking to develop a spread sheet with the air bases and ranges based on time to help with determinig the air umbrella. I am doing this due to the map provided with the game is no longer valid due to increased ranges. I can find trhe files that list the types of planes and ranges for the Large,Medium, and Small air bases. I can not find the file that actually desgnates where these air bases are. Could anyone please tell me where to find this information

Thanks