Hose Drum units and Probes
The Mk 16 HDU was DC Powered as stated and suspended in the Valiant Bombay, The Bomb bay soors had to be opened to use it,
The Mk 17 HDU a development from the 16 in the Victor K1 and K1A was DC Powered and was lowered into the airstream being retracted when not in use
The Mk17B HDU in the Victor K2 was AC Powered and was again lowered and retracted from into the airstream
The Flat fronted Refuelling Nozzle was the Mk 6 and was superseded by the MK 8 as the RAF call it but infact it was the MA2 designed in the USA
MTOW for all versions of the Victor are in the new book on the Victor