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Old 10-15-2013, 03:20 PM   #1
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Towing Double Trailers

On Oct. 10, I started out on a 330 mile journey from Livingston, Texas to Madisonville, Louisiana for the Madisonville Wooden Boat Festival.

I will limit my comments to my trailering exeriences. The rest of the wild times can be found on the Wooden Boat Forums website.

Here's the rig:



2010 Ford F-150 4X4 5.4L V8 3.73 axle with towing package
2014 Wilderness 2175 RB
2011 Rowboat and trailer (combined weight 370 pounds)

The rig is 64 feet long (one foot below the max. legal limit).
It is also illegal in 25 states, but legal in Texas and Louisiana.

At speeds below 55 mph, there was no difference in handling from just towing the travel trailer alone.

At 60 mph, an uncomfortable sway was noticeable without the the use of the trucks computerized sway control. When the sway control was activated, 80% of the sway was canceled.

I got 10 mpg using the sway control at 60 mph on the trip out and 12 mpg by not using the sway control at 58 mph on the return trip.
The sway control on my truck is accomplished by computer controlled application of the brakes. It stops the sway, but it is not good for the gas mileage. Sway bars would be better. (my next planned purchase for the travel trailer)

Pulling into gas stations can be difficult. You need straight approaches to the gas pump islands. If you have to make a sharp turn, you are screwed.

I used a MasterLock wireless backup camera to monitor the boat trailer while driving down the highway. The wireless feature made it easy to iinstall, but the antenna orientation is an issue. It is very sensitive to misalignment of antennas from camera to monitor. If there is a "next time", it will be a wired backup camera.

Interesting to note that the weigh of boat and trailer is less than a full tank (36 gallons) of fresh water in the trailer. I traveled with an empty fresh water tank.
..
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Old 10-16-2013, 08:25 PM   #2
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Glad you had fun and it worked for you. How was backing up that rig? jk. As you said around here triples are illegal. For a 3rd trailer that small and if you stay off the interstate maybe they shouldn't be.

I've had friends that snuck down back roads with things that look a lot worse then that. lol
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Old 10-16-2013, 08:36 PM   #3
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Quote:
Originally Posted by Caveman CBB View Post
As you said around here triples are illegal.
But that's not a triple, it's a double. One "tractor" and two trailers.
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Old 10-17-2013, 05:38 AM   #4
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Mr. D is correct. It is a "double trailer rig". (Not a triple.)

My experience with this rig is that all the sway starts with the travel trailer. The boat trailer doesn't really affect the sway since it weighs less than a full tank of fresh water in the travel trailer.

My route included 400 miles of interstate highwy (I-10). There was no problem with the LEO's and they were busy. I saw at leat 5 cases of cops pulling over speeders during my trip.
.
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Old 10-17-2013, 07:02 AM   #5
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Sorry, yup it's a double me bad. Still illegal in MN. You can do it with a 5th wheel though.
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Old 10-18-2013, 05:11 AM   #6
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Still illegal in MN. You can do it with a 5th wheel though.
The double trailer laws vary from state to state. 20 states don't allow double trailers at all. That includes all east coast states with the exception of Maryland. There are 5 states that allow double trailers only if the first trailer is a 5th wheel type. The rest of the states allow double trailering.

That could change tomorrow.

There is a website that has towing laws by state.

Towing World Official Website - Towing Laws

Those considering double trailering might find that helpful.
.
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Old 11-17-2013, 11:14 PM   #7
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Caveman CBB towing doubles in MN is not illegal, the first trailer does have to be a 5th wheel, and 2nd trailer has to be a boat or other RV type trailer, IE ATV or snomobile etc. and the length limit is 70 feet. Commercial doubles are legal and length is 75 feet.
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Old 11-17-2013, 11:26 PM   #8
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I have seen and a rack for your truck to carry boat and trailor can be fabricated at a low cost.
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Old 11-18-2013, 07:11 AM   #9
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Caveman CBB towing doubles in MN is not illegal, the first trailer does have to be a 5th wheel, and 2nd trailer has to be a boat or other RV type trailer, IE ATV or snomobile etc. and the length limit is 70 feet. Commercial doubles are legal and length is 75 feet.
Yes, if the first trailer is a 5th wheel then it's OK to do it.
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Old 11-18-2013, 10:23 AM   #10
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Have you actually weighed your setup to see if the TT's TW is correct? That would be my 1st priority here. I used to own the exact same truck except for color. I towed a 31', 72-7300lb TT. I had some wiggle but never what you're experiencing. I ran 60-65mph all day. Only thing that may be contributing to the situation is some turbulence from the trailer and the boat. Doubt it but you never know.

Also does the TT tow fine w/o the boat?
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Old 11-18-2013, 10:49 AM   #11
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Quote:
Originally Posted by renegade View Post
Caveman CBB towing doubles in MN is not illegal, the first trailer does have to be a 5th wheel, and 2nd trailer has to be a boat or other RV type trailer, IE ATV or snomobile etc. and the length limit is 70 feet. Commercial doubles are legal and length is 75 feet.

the bold in your quote is what I have read also but when we were at a off road get together in October there were 5 or 6 guys with Minnesota plates pulling 5th wheel rv's and pulling a car trailer with a Jeep behind the 5th wheel.
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Old 11-28-2013, 07:41 PM   #12
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I agree with the above post that the sway was initiated in the TT. I tow a 28ft TT and a 12ft cargo trlr behind it and have to make sure i get more weight forward in the TT. Just the difference in the fresh water which is up front to the holding tanks which are in the rear effects how it tows. I am very conscious of this and have no sway whatsoever.
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Old 11-29-2013, 02:58 PM   #13
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Kurtsara, a jeep used for offroading would be considered an RV type vehicle, thus it would be legal in MN.
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Old 11-29-2013, 03:27 PM   #14
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Kurtsara, a jeep used for offroading would be considered an RV type vehicle, thus it would be legal in MN.
Good to know, down the road I am considering a fifth wheel and still want to take the CJ7
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