So Thursday night I slept on a mono for the first time.
It was pretty still most of the night as we were in refuge bay. But in the middle of the night there came this thumping sound on the front of the hull. It wasn't a line as I had sorted those out before bunking down. So I am pretty sure it was the mooring apparatus banging on the bow. On my cat it's not something I've heard before. It was pretty loud and would persist for 3 minutes at a time, irregular intervals.
In the morning a breeze had returned and the banging could not be replicated.
Is this common on monos? Am I wrong, is it something else? What are the simple home remedies?
If it is the mooring you could do what woko said In another thread and have it set up like this.
Woko says "I recommend setting your buoy up like this, it gives plenty of opportunities to hook it, a knot before the onboard eye splice stops the buoy pendant pulling through and the buoy is easily lifted on board "after" the morning line is made fast. Buoy stays clean and more importantly doesn't bang away at your bow/ topsides!"
That can be found in this thread www.seabreeze.com.au/forums/Sailing/General/Mooring-Lines-and-Associated-Bits
regards,
Mick
Sounds like the mooring to me. Sometimes a little breeze is good, just to hold you off 
Nah it was one of these club types not the private type. Can't bring on board.
If if nobody else is around, and the wind is light, would a stern anchor be the best solution?
You could try keeping the line between bouy and boat tight in light wind or just go and drop anchor.
Select to expand quoteFelixdeCat said..
Nah it was one of these club types not the private type. Can't bring on board.
If if nobody else is around, and the wind is light, would a stern anchor be the best solution?
Yeah, can be annoying, all I do is tie the line from the top of the mooring up tight to the bow cleat making sure there is no slack, effectively lifting the buoy ever so slightly and this prevents the boat drifting forwards and hitting the buoy. Works for me, your results may vary.
I tend to favour a bungy cord from the pulpit or bow to the top of the buoy. When there is a load on it stretches easily and allows the mooring line to take up the load as the boat hangs back. When it glasses out, the bungy holds the buoy vertically under the bow rather than allowing it to drift back and hit the hull. It does demand an overhanging bow.
If only the bouy was a girl, there would be no complaints if there was a little banging
Select to expand quoteChris249 said..
I tend to favour a bungy cord from the pulpit or bow to the top of the buoy. When there is a load on it stretches easily and allows the mooring line to take up the load as the boat hangs back. When it glasses out, the bungy holds the buoy vertically under the bow rather than allowing it to drift back and hit the hull. It does demand an overhanging bow.
+1
Did this for 9 months 'living' on a public mooring near Berowra Waters. Never did things go bump in the night
