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Old 06-26-2016, 02:55 AM   #1
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Why did my buddy's trailer tow so much easier than mine?

Performed a "rescue" tow of my friend's rented TT recently on our trip from Alabama to Yellowstone. His TV had to be towed due to a failed alternator and I towed his trailer from Island Park, Idaho the last stretch into West Yellowstone. It was a 26 footer with a dry weight in the low 6000's and 15 inch wheels. What struck me was how much less my truck seemed to be working to get this trailer rolling and up hills compared to my 25 footer with dry weight in the low 5000's and 14 inch wheels, both with tandem axles. The heavier TT was somewhat more aerodynamic but not radically so and that wouldn't matter with the initial moment of inertia process. Appreciate any feedback on if it's the bigger wheels or what?
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Old 06-26-2016, 04:22 AM   #2
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Air resistance is a much bigger factor than weight.
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Old 06-26-2016, 09:13 AM   #3
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Quote:
Originally Posted by Admiral_Roo2 View Post
Performed a "rescue" tow of my friend's rented TT recently on our trip from Alabama to Yellowstone. His TV had to be towed due to a failed alternator and I towed his trailer from Island Park, Idaho the last stretch into West Yellowstone. It was a 26 footer with a dry weight in the low 6000's and 15 inch wheels. What struck me was how much less my truck seemed to be working to get this trailer rolling and up hills compared to my 25 footer with dry weight in the low 5000's and 14 inch wheels, both with tandem axles. The heavier TT was somewhat more aerodynamic but not radically so and that wouldn't matter with the initial moment of inertia process. Appreciate any feedback on if it's the bigger wheels or what?
Could tire pressure have anything to do with it?
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Old 06-26-2016, 10:49 AM   #4
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Could have had a tailwind towing one and a headwind towing the other.


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Old 06-26-2016, 01:14 PM   #5
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tires

Used to have a single axle 14 foot TT. Bias tires went bad and were replaced with radials. Couldn't believe the difference on such a small trailer.
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Old 06-26-2016, 02:53 PM   #6
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Originally Posted by Admiral_Roo2 View Post
Performed a "rescue" tow of my friend's rented TT recently on our trip from Alabama to Yellowstone. His TV had to be towed due to a failed alternator and I towed his trailer from Island Park, Idaho the last stretch into West Yellowstone. It was a 26 footer with a dry weight in the low 6000's and 15 inch wheels. What struck me was how much less my truck seemed to be working to get this trailer rolling and up hills compared to my 25 footer with dry weight in the low 5000's and 14 inch wheels, both with tandem axles. The heavier TT was somewhat more aerodynamic but not radically so and that wouldn't matter with the initial moment of inertia process. Appreciate any feedback on if it's the bigger wheels or what?
just wandering......did your MPG'S reflect an easier pull ?
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Old 06-26-2016, 04:21 PM   #7
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Didn't pull it long enough to notice MPG

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just wandering......did your MPG'S reflect an easier pull ?
I only had to tow it about 25 miles, most of that 2 lane hiway until I got into W. Yellowstone. To the other posts my tires are brand new GoodYear Marathons and the pressure was fine on all four. It just simply got up to speed easier and climbed with less effort from the truck. I can understand the aerodynamics making somewhat of a difference at speed but the only thing that makes any sense for getting it going easier would seem to be the bigger wheels. Really wondering why FR put 14 inchers on mine. It was noticeable enough to make me much less nervous about a 7k lb trailer in the future if they tow more like this one than my current one.
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Old 06-26-2016, 06:23 PM   #8
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Originally Posted by bikendan View Post
Air resistance is a much bigger factor than weight.
I wonder about the wind resistance also. We pull a heavy (8000LB dry weight )28RKS Wildcat. It is a 2011(pre rounded front cap). The identical new trailer is about 700lbs lighter but has the rounded front cap. Unfortunately, looks like they took the weight out of the good stuff ( lighter capacity axles, 15 in stead of 16 inch wheels and my eye( without a tape measure a lighter frame). My question to self is always , " would the new slightly lighter rounded cap version with smaller wheels, brake drums etc pull easier than ours". We love the way our's is built. Lots of tough gravel road travel and zero issues with structure or suspension. Just that it's a little soggy.
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Old 06-26-2016, 07:06 PM   #9
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I am just guessing that yours may weigh more loaded since you own it and probably like most of us have lots in it, where his was rented and probably had very little but personal items and clothes.
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Old 06-26-2016, 07:14 PM   #10
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It's funny how trailers react differently. I've pulled my 38' fifth wheel making 9-12 mpg and then I made a 2,200 mile trip with a 6x10 cargo trailer only to make 13.5 mpg. The cargo trailer was 1/3 the weight and expected 15/16 mpg but the square front held it back. So wind has an effect on trailers.
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