dons2346 wrote:
gbopp wrote:
That's a very interesting observation. I'll have to watch next time I'm driving in the rain.
I wonder if anyone has a 'scientific' explanation why this happens?
Not very "scientific" but an explanation. With the flap mounted where it almost touches the ground, it sets up a shock wave in front of it and that will actually pick up rocks, dirt, etc. and get it bouncing on the ground. The junk will bounce out from under the coach and go no telling where, usually on the toad.
From those of us that do not have a mud flap, we know that rocks are also thrown up by the duals, long before they would be affected by a mud flap. The difference seems to be that they are not thrown up quite so high as they are with a mud flap. Since the duals do throw up rocks, I'm not sure that the mud flap being up a little higher, or being all in one piece, instead of four pieces as in the picture, would make much difference. No mud flap at all seems to work the best for most people. Rocks are still thrown but they seem to stay low and do less damage.
