Goodyear Airship.
Was overhead the City of York at tea time today, that's 1700 to 1730 to 'us Yorkies'. It spent most of the time around the Minster and even though it was quiet, the buzzing of the engines became a damn nuisance, like a duo of lawn mowers in an adjacent garden. Just watched 'Around the world by Zeppelin', BBC4, superb. Chug-a-lug.