Hi
Yes Valiant Fuel tanks brings back memories - Basically they are thin rubber bags with rubber studs moulded to the outside, and for support the studs simply pressed into corresponding holes in the supporting metal structure
Fuel pumps were mounted in the tanks with the associated pipe work and all carefully electrically bonded. Access to the fuselage tanks was by "dusbin lids" in the bomb bay.
I can't remember electric heaters but if there were, they would have been with the flowmeters located either side of the bomb bay. Anyway the engines had fuel cooled oil coolers to heat the fuel and cool the oil
Many was the time on QRA that the Americans called us out to stop fuel from dripping on to their nuclear weapons, and my backside has been supported many times by these same nuclear weapons as I struggled for access to the dustbin lid nuts.
I dont think it has done me any harm, when I see a young lady I still get excited, but can't remember why
