Ramp Maximum Inclination

I agree Daiquiri. I would never put a ramp with slope greater than 10%. However, there are solutions, like putting the end of the ramp, let's say 1 meter, articulated.

 

I guess you wanted to say 10°. 10% equals 5.7° - a bit low.

Yes, I agree that the articulated ramp is the solution and, by what I could see, it is usually done at the free side of the ramp. The side which is connected to the ship was not articulated on the ramps I could see so far (but I haven't seen that many of them), and that's where problems usually arise. The hump between the ramp edge and the car deck. I can recall two occasions in which ramps had such a severe hump that cars loaded with a family and their baggage remained stuck in the middle like a teeter-board, unable to move either forward or backwards... Many years ago my mother had some cables running along the car bottom truncated by the ramp edge...

 

I mean 10%. ie, in a stretch of 100 m, horizontally, you raise 10 m, vertical. But, of course, may have much room here. I only speak of what I have seen in 4 or 5 boats ro-pax, which, more or less, was up 4.5 m over a length of 60 m. (I know that this is not at 10%)