A broken alternator belt

The wind is getting up, but otherwise looks like a decent day in prospect.  Pat went off to get some last minute items from Tesco while I took advantage of the last decent mobile internet signal for a week before we left.  In one's mind's eye, Hillmorton Locks are not very far, but in reality it is quite a long cruise.  So when we arrived there, things were on the move.  At the second lock pair Pat chose to wait for a boat coming down and got chatting to a couple from Australia who had just started their first narrowboat experience with Black Prince and, to quote, hadn't a clue how to proceed down the locks.  They were moored up near Blue Haven Marina and had walked down to see what was in store and how to work the locks.  We were soon at the top and carried on in the strengthening wind facing opposite direction traffic at regular intervals.  Reaching Braunston Turn we were faced with a boat manoeuvering with difficulty in the wind and had to slow, then being blown wrong side to take the turn.  This resulted in a burst of high revs which set an engine alarm off.  We stopped just after the turn to investigate and found the reason for an odd tapping noise that had occurred shortly before.  The alternator belt for the small alternator had broken.  So we moved forward to a more sensible mooring and had lunch.   This allowed the engine to cool a bit and within the hour I had the spare belt on.  We carried on and finished up about half a mile before Napton Junction,in good situation for our destination tomorrow.