The T17 was a modified B2, destined for 360 and 361 Sqns. 361 was to be based in the Far East to provide EW training for the Forces over there. The aircraft destined for 361 were fitted with the same air ventilated suit (AVS) system that was fitted to the Vulcan. I had my old Vulcan AVS and had an adaptor fitted by the safety equipment guys. Although the system was never maintained, it hadn't been blanked off and still worked! Reasonably effective but at LL in the Med the temps were just too much for the system to cope with. Besides, the AVS was an additional layer of clothing you didn't need pre-flight!