There's an equally as funny one by Hale & Pace, 'Yorkshire Airways', but I don't know how to post links so can't share that with you.
And here was me thinking it was a bit of a piss take not realising it was actually quoting facts. You Yorkshire folks have my highest admiration.
There was another good one from Hale & Pace about Northerners, saying we all had an outside loo and thank god for the ' apostrophe. Who says we Yorkies cant laugh at ourselves eh ?