(RV Interim) prod proto for cockpit wiring mods 25-7-44 to standardise top rear fus tank 14-11-44 to intro FRXIV interim variant 14-11-44 ASTH 15-4-45 6MU 6-5-45 76MU 14-9-45 Fort Michigan 28-9-45 India 18-10-45 4RIAF Japan SOC 25-3-48