I served on Yorkshireman when she was a harbour tug in Hull. Never did any pleasure trips out of Bridlington though, that was before my time (my brother did) us deckies had the job of polishing the brass in the forward saloon. Lovely old tug, really enjoyed serving on her.
Yes she was shallow drafted, almost flat bottomed. Due to her draft she was also involved in salvage work on occasion. She carried special lightweight towing gear which UTC called "Beaching Wires" which could could easily be passed onto the stricked vessel and then transferred to a more powerful tug
During and just after the war she was stationed at Grimsby. Mine sweepers were clearing mines up and down the east coast between Flamborough Head and the Humber and if any accidents happened "Yorkshireman" went to their assistance, apart from that every Thursday she sailed to supply fresh water and food stores to the Humber and Spurn light vessels also the Bull fort which was manned by the army. The Captains surname was Sheriff the mate was Alf Varley, Charlie Noble was the galley boy 1946