ORIGINAL: el lobo
My next big r&d challenge is figuring out what factories to let go into production, which ones to move to the next model and which ones to convert. A lot of what I ended-up on this chart is a result of my not planning this all out prior to the game start. Some of it will work-out OK and some will cost me extra supply. A lot of this will depend on how I decide to use my groups and that is going to be the topic of many more discussions, I hope.
Exactly, and I had already kinda moved onto to this.
In terms of your model choices, all are fine. Here are my thoughts on a few ...
Jack/George: you just need to choose one and settle on it. Both are a LBA IJN fighter stand in until you get the SAM.
IJN NF: watch your investment here compared to IJA NF. Boils down to how many groups and when.
Tojo: Relatively large investment in a defensive fighter. Suggests you plan on relinquishing initiative in early '43.
Tony/Tojo: largely the same, except Tony is later and bit better armed. These are short ranged interceptors with 370 speed and good climb. They are ok until last P47/P51 upgrades and then they fall victim to the 70 mph malus.
Frances/Peggy are offensive (counter offensive) bombers. Be sure you have a fighter to match.