Which is why I think a British name might be in order.
It's the name of the aircraft, and a perfectly good one.
Hercules was a Hercules
Phantom was a Phantom
Sentry was a Sentry
Lightning is a Lightning.
I accept Washington was a Superfortress, Superfortress was a better name though. Perhaps Washington was a joke at our expense by the Yanks. Maybe Lightning should be called 'Dave's Folly'.
We always screw up perfectly good American nomenclature by sticking our own bull**** designation like C.3 or FGR4 on the end.