No, faorly certain it wouldn’t have sunk. But a boat that can rip itself to bits by means of a rope around a prop, that is surely poor design or construction.
Just keep in mind that polyprop only lasts a year or two in the sun before turning to dust. It's why fender manufacturers provide polyprop fender lines as they sell more fenders that way!
It’s a cat...and in port...so probably just badly list
There must be polyprop and polyprop! I bought some 12mm polyprop from the 'fisherman's co-op' on the quay in Cherbourg, as used on their trawlers, to make up some mooring lines for my fore and aft riverside mooring and used it for about 15 years. I gave it a cursory check evey time I visited the boat and a good close inspection at the start and end of the summer. I replaced it a couple of years ago, only because I thought I should, it's laying around in my shed and still appears to be viable.
I use a polypropylene towing bridle for my dinghy. Its several years old and there is no sign of deterioration in the Caribbean sun. I think they do something with the line to stop the UV damage, these days
Sure it's not polyester, which is UV stable?
It's the nasty plastic stuff that very coarse. Typical fiahermans line so fairly certain is polypropylene.
Waterproof crash compartments, foam construction, the odd locker that doesn’t fill. No part of our boat would sink, together or broken up.
I don't think that yours is an average yacht.....
