I just played Axis & Allies (2004 version) for the first time (Christmas gift from my husband) and we came up with a couple of questions that I can’t find answers to in the rules.

What happens when a power’s National Production increases beyond the end of the chart(63)?  Should I keep track on paper, or is 63 an actual limit?  If the latter, what happens if a territory is taken from that power?

How is the range for air units counted? For example:
Can a fighter fly out 4 spaces during the combat move, be involved in combat, then fly 4 spaces back, then fly an addition 4 spaces as the noncombat move?

Thanks.