Could it have been that as it was being dragged up the slipway, the ice was melting then reforming under the pontoon where it was in contact with the slipway? And when reformed acting to ice both together? This might create strong resistance as the ice might be having to be broken again and again. Think about a sled dog having to break a sledge out before taking off over ice or snowNo snow here everything is frozen solid, we tried to pull a 40t pontoon up the slipway & the rings/shackles & chains
were snapping. I think its the cold as we've never had an issue before. So we achieved nowt this morning, I had the
heated seat on in the machine which was nice.
Is it salt water or freshwater?
Any access to a hose for hot water or any other way of heating the area? Or even saltwater?
Can't believe that it is cold enough for this to make steel that brittle.
Nice to know you are sitting in the Hot Seat.