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Old 12-31-2013, 07:21 PM   #1
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Smile Towing Calculators - a new toy

Being that it was pretty quiet today and I wanted to try my hand at some new technology - I took my "What Can I Tow?" article and built some calculators for it. I know, I know- just what the world needs, more towing calculators!

Anyway, here's what I have so far:
Towing Planner - towing capability calculators

Right now, all I have are 2 calculators for planning on a possible camper's weight:
1) based on available payload via scaled weights
2) based on the yellow "cargo carrying capacity" (aka "Tire & Load Information") sticker on the doorjamb

I plan on modifying my previous "Tongue/Pin Weight Estimator" over to this new site.

As expected, it only deals with the "staying within ratings" perspective. I'm open to PMs if there is an objective way to reflect the towing over your ratings viewpoint.

Any and all input is welcome- but please lets not this conversation degenerate into a weight police vs. not discussion.
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Old 12-31-2013, 07:24 PM   #2
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As for the new technology - using the site on your phone vs. a tablet vs. your PC - it stretches and morphs slightly to support each screen size. Pretty neat, even if I am incredibly over my head.

Hope to use this code-base to turn it into an app for the various devices, though. Should be fun!
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Old 12-31-2013, 09:46 PM   #3
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Good job Doug... you can't make it much easier than that to get started.
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Old 12-31-2013, 09:50 PM   #4
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I'm all ears for other ideas. These have been fun to write. :-)
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Old 01-01-2014, 04:24 AM   #5
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Looks very good! The question is what is the percentage of GCWR that is acceptable? 80%? 90% That's the argument.

Now all you need is a tire rating calculator!
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Old 01-01-2014, 11:16 AM   #6
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Given that I think you exceed GVWR along before GCWR in most cases, I think the actual % of padding off of GCWR is inconsequential.

What kind of tire load capacity calculator are you thinking of? I'll gladly attack anything that you have in mind.
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Old 01-01-2014, 06:12 PM   #7
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After figuring out pin/hitch weight, axle weight(s) should be known, so axle weight divided by two (or four) would give a load per tire. Convert this to a load rating (C, D, E, F).
Should be easy.
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Old 01-03-2014, 04:09 PM   #8
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Quote:
Originally Posted by ependydad View Post
Given that I think you exceed GVWR along before GCWR in most cases, I think the actual % of padding off of GCWR is inconsequential.

What kind of tire load capacity calculator are you thinking of? I'll gladly attack anything that you have in mind.
As you said, only "in most cases", exceeding GVWR comes long before GCWR. Beware if you have a Hummer H2.

My previous TV (though not for the 18EC) .... 2008 H2 SUV Base Weight = 6,700# + 900# TW + 400# (driver & passenger) = 8,000#. GVWR = 8,600#. Max Trailer Weight = 8,200#.

Should be good towing my TH loaded to only 8,000# (9,695# GVWR) .... nope. GCVW = 16,000# .... GCWR = 15,000#.
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Old 01-03-2014, 07:41 PM   #9
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I have been wondering about how to introduce GCWR into the calculators. If the possible towing ranges + truck's wet weight are higher than the GCWR then use the GCWR as the max. I'm not sure- just need to figure out how to include it gracefully.
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