With apologies all round, a rapid phone call from from their hyper-efficient PR reminds me that while REVL is pronounced with a second 'e' it doesn't actually have one. And of course, the loco the company is retractioning is the Class 73 - English Electric's original dual mode loco
My brain must have relaxed into blog mode after the preceding techie stuff. Mind you, a Class 20 with a bit more oomph wouldn't be a bad idea.
Roger