Hard to test, because the tower has 4 visible ladder parts, the tiller 3 and 1 invisible. I did that because the 4th ladder never slides out in the game. And I am pretty sure real tillers have only 3 as well. The ladders of the tiller and the tower have almost the same length, so they can both reach the same spots theoratically. It might look different on the screenshots, but that's the way I placed the ladders on the trailer.