We didn't have the bomb bay tank in the AEW 2 (at least when I was there in the early 80s). The bomb bay had been shortened to fit in the extra radar kit for the APS 20 leaving just 9 bomb bay stations. All we had in the bay were the extra luggage paniers if required and the flares, marker marines and lindolm kits. ISTR that we had to run 2 of the engines at a non efficient 2175 RPM to drive the radar because the generators did not have a constant speed unit, and even by throttling back the other 2 to cruise we only got 13 hours out of it. We could get a bit more by throttling back on 3 engines and using the back-up inverter (No 9?) for the radar, but that broke the radar if one of the generators decided not to play. The noise from the desynchronised engines was appauling! The longest shack sortie in my log book is 12hrs 55mins.