The standard crew of an E3 was 4; 2 pilots, a Nav and an AEO. There was no ALM but the AEOs carried out the duties of Freight Bay Management. I think they were qualified to carry up to 12 pax. If more pax were carried either a second AEO would be carried or an ALM sourced from the OCU or Staneval would help out. The E3As without the IRFIS fitted still had the second nav station fitted.