Fuel Systems
Ok, so now I think I understand it;
(1) The MRA 4 will use the same AAR design as that used on MR 2, but with new parts. So where the existing design is flawed, the MRA 4 will carry the flaws
(2) Some fuel pipes will be double skinned. No doubt we can not afford to double skin all the pipes that need it.
(3) The AAR system will not be qualified (cleared?) on delivery, but it has to be ready for use at short notice. So qualification will be done at short notice.
Can anyone tell me when and how the existing AAR was qualified? And please do not say "On the awy out to the Falklands"
DV