Aut cum scuto aut in scuto
Well hell, I thought I felt something bumping.
Then you find yourself in traffic, nowhere to go, and notice that on the truck in front!
Been there. Done that. Got the Tshirt to prove it.I had one about half that size blow a hole right up through the trailer floor when I hit 60 MPH.
Driving in Europe 45 years ago I noticed many trucks/lorries lacked mud-guards. One day I was driving on a highway in a line of traffic doing about 55MPH. I was about 3 vehicles behind a mud-flapless truck and sure enough a stone the size of a large potato was launched from between its tires. I followed the arc and saw it heading for a landing right between my eyes. It hit the windscreen and was only stopped because of the laminated safety glass. It was inevitable. I needed a skivvies change.
Same thing happened to me, but the projectile was a lot smaller. I watched the windshield spiderweb before my very eyes, almost dead center. I saw it coming and there was nothing I could do but lean over to the left.
Speaking of these signs on trucks - Stay Back 100 Feet. How about they get some mud flaps that actually work.
Might cause a wheel balance issue.
I have seen a few trucks with a steel plate suspended between the dual tires to knock that sort of problem loose each revolution.BUT these were dump trucks at mines.I don't know if state DOT types would allow that modification on an over the road truck.