Nimrod AEW3:
2 x Pilots
Navigator
Flight Engineer
6 x Mission Consoles, one of which had additional Comms equipment (radio/data link etc).
1 x Mission System Technician (not originally planned for, but keeping the wretched kit going needed him).
Four x Extra seats in the galley for additional crew as required etc
I recall 6 x seats midships as well for additional crew(?). But its a long time ago....