This is my first opportunity to see if i can Advance research an upgrade to a current plane frame. Note the Tojo2A. Normally due 9/42...I have maxed the research for this plane......time to convert at least one factory to the 2b version....If I convert both factories at this time then I should keep the research at.60 per month which would bring in the whole line in 2/3s less time than normal.
















