Originally Posted by SirPeterHardingsLovechild
Then during April 1972 the B2 nose was removed and replaced with a standard B6 nose from Canberra XH568
Noses were swapped back again after both aircraft were sold from RAE, prior to XH568 being prepared for it's ferry flight to it's new owner in the USA.
So, only the mainplanes/engine nacelles etc from an unknown B.6 are not the original WK163.