Edison,

In Vin's MiG, the retracts are plumbed to the gear valve and the doors are plumbed to the Door 1 valve. Both are connected (up/down, open/closed) per the instruction diagram. The Door 2 valve is not plumbed to anything. Brakes plumbed per instruction diagram. Incidentally, the instructions are not very instructive (such as when do you use the Door 1 valve and the Door 2 valve?) MiG-21s only close the doors when the gear is up, I guessed using the Door 1 valve. Does Door 2 give you doors open - gear retracts - doors close?

Regards,

Jim