ACW599 ...
I'm no train buff ... but if you refer to the Class 37 Loco (aka EE Type 3), built around the late 50's, as one of those cabs you rode in ... then the similarities with the Chipmunk may have been more than just the "aroma" ?
Found the pic below where there is more than a passing resemblance between the Chipmunk instrument panel and that of the Loco ! Also the Loco V
NE of 90 MPH isn't that far off the Chipmunk's V
C of 90 KTS.
As to a possible Lightning connection ... if only BR had used a couple of AB Avon's it would have made my experience of "commuting" much more fun
Kind regards ...
Coff.