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Old 06-12-2013, 08:46 PM   #1
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Is this normal?

Is it normal to be sucked over toward a semi when he is passing you on
the interstate? Have a 26ft Flagstaff TT pulled with an F-150 ecoboost.
First few times this happened it kind of scared the --- out of me. Now I
just anticipate that I will be drawn over and hold the wheel a little tighter.
Just checking to see if this is normal or do I have something screwed up?

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Old 06-12-2013, 08:51 PM   #2
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Happens all the time with us too. It's amazing what air currents can do.


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Old 06-12-2013, 08:58 PM   #3
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Not for me- but apples and oranges comparison (dually and fifth wheel).
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Old 06-12-2013, 09:04 PM   #4
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Do you have a weight distribution hitch with sway control? My trailer is slightly shorter but semis have no effect on me at all with my fairly basic WDH and 2 friction sway bars.
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Old 06-12-2013, 09:07 PM   #5
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Yep, that's what usually happens when a big rig passes a bumper towed TT. The air wave from the semi pushes the rear of the trailer over which moves the tongue and the TV toward the semi. Just have to be prepared for that when one is coming up behind you. 5th wheels are mostly immune since the connection point and more weight is in the bed of the TV.
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Old 06-12-2013, 09:09 PM   #6
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Being pulled towards the semi really doesn't have anything to do with the WD or sway control. It a vacuum created by the turbulence. It pulling the whole rig. If you don't have sway control it can start you swaying though.
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Old 06-12-2013, 09:12 PM   #7
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Yes, I have weight distribution hitch and 1 friction type sway bar. Not sure what brand it is.Towing is no problem other than the semi passing business. It isn't a real big problem, just curious if this is normal.
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Old 06-12-2013, 09:31 PM   #8
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One way to minimize that effect is to hug the shoulder when a truck passes if you are in the right lane.
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Old 06-12-2013, 09:38 PM   #9
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It is referred to as white knuckle syndrome, I got rid of it years ago by installing a Hensley hitch, no suction and no sway either, expensive at the time but looking back its on its fourth trailer and I can drive relaxed with one hand on the wheel (if I want to) so it was worth every penny.
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Old 06-12-2013, 09:39 PM   #10
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I used to have the same problem when pulling our current trailer with a Jeep Commander. Now I pull the same trailer with a Silverado Crew Cab. Night and day difference. The two things I know are different are the wheelbase and weight. The Jeep was lighter and shorter. I think the the longer wheelbase is the main difference.


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