In Australia our most famous train, it worked the Sydney - Katoomba and west - was known as the Fish because it's original driver was a Mr Salmon. Other trains were called Chips.

I'd be interested in airline nicknames from around the world. Quite a few years ago my group, The Larrikins, did a cultural tour of the pacific Islands (tough gig he?) and we flew several island airlines

Air Pacific - Air Pathetic
UTA = stood for Unlikely to Arrive
Air Noumea - Air No Where (because of limited route)
Qantas - Quaint Arse (because of roo tail )
etc