"Incidentaly I recently met a chap who was involved in the filming, and operated a replica Hurricane, fitted with Jaguar engine for taxi-only use.
He reckons he got quite a long flight at an altitude of 8' out of it !"
Double Zero, someone was pulling your chain there, that replica was not even thought about when the film was made, it was completed in the late 1980s or early 1990s. It had nothing to do with the film and certainly didn't fly!