Now i'm posting for a mate here as i can launch and recover with my car quite easily, however its a different story for him.
They have just got themselves a new Rib x 535 on a bunk trailer. Our slipway at Herne Bay is quite a gentle slope so the cars wheels literally touch the salt waters edge

and the boat is still not far enough in. Of course he doesnt want to get the car wet, but its bloody hard work getting the boat off. Getting it back is much easier.
My question is, is it ok to extend the trailer using rope and if so whats a decent knott to use and where to you tie it to the trailer. Of course we would get a decent rope first rather than some cotton strands
Any ideas gratefully received.