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Old 10-18-2016, 07:56 AM   #1
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Tongue Weight Question

I'd like to know what weight percentage propane tanks and battery weight on the A frame have on the actual tongue weight?

So say if I have say 2-30's of LP or about 100 lbs what would be the distributed weight amount to the tongue on properly weight distributed level TT?

Thanks
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Old 10-18-2016, 08:10 AM   #2
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Not the answer your looking for but consider this.
you start out with full tanks that have a certain weight but on your return trip you now have one tank that is empty and one that is 1/4 full how much did that change your tongue weight?


however I would say if you put 100 lbs on the tongue you will still have 100 lbs more weight than what you started with. however the further aft you place that weight will affect the total but by moving it back 2 feet will have little effect on the total.
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Old 10-18-2016, 08:32 AM   #3
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I would guess 60-70% of the weight winds up on the tongue.
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Old 10-18-2016, 09:23 AM   #4
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Measure the distance from tongue to axle (a) and from tank to tongue(B).

(a-b)/a * (weight) = Additional tongue weight.

very basic formula, lots of variables but it will get you somewhat close
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Old 10-18-2016, 10:16 AM   #5
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Aside from an academic exercise I'm not sure I understand the need to know the answer to this. The non-weight distributed tongue weight is the number you need to be concerned with. It should be 10%-15% of the trailer weight. Too little can introduce trailer sway. The WDH's primary function is to put weight back onto the front wheels of the tow vehicle, which restores full steering ability. The secondary function is to level the entire rig.
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Old 10-18-2016, 10:32 AM   #6
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Aside from an academic exercise I'm not sure I understand the need to know the answer to this. The non-weight distributed tongue weight is the number you need to be concerned with. It should be 10%-15% of the trailer weight. Too little can introduce trailer sway. The WDH's primary function is to put weight back onto the front wheels of the tow vehicle, which restores full steering ability. The secondary function is to level the entire rig.
Hi,

I'm really close to payload capacity. Looking to add battery count and was interested how additional battery weight would relate to actual tongue weight increase, and how much of the weight would be in the TT.

Have a lot of available TT tow capacity but not much on the TV payload side.
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Old 10-18-2016, 10:48 AM   #7
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Hi,

Have a lot of available TT tow capacity but not much on the TV payload side.
I would suggest a visit to the CAT scales That way you will know your actual weights rather then getting a lot of guesses
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Old 10-18-2016, 12:54 PM   #8
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Originally Posted by Jay Dreamer View Post
Hi,

I'm really close to payload capacity. Looking to add battery count and was interested how additional battery weight would relate to actual tongue weight increase, and how much of the weight would be in the TT.

Have a lot of available TT tow capacity but not much on the TV payload side.
Ahh! this makes sense now. So I go back to what I said above, the tongue weight is the tongue weight before the WDH is setup. That's the number you need to know. All the WDH does is spreads the effect of the weight out farther to the ends of the truck and trailer. It does not change the weight of the tongue itself.
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Old 10-19-2016, 03:59 PM   #9
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The Sherline scale is an excellent tool for determining exact tongue weight. Packing heavy stuff in the front pass-through (or extra batteries on the tongue) can really affect the tongue weight on these trailers. You might be able to move heavier stuff under rear bunk and still maintain the same tongue weight (assuming you are currently at 13-15 %.) The Sherline allows you to rearrange stuff without multiple trips to the scales. You can find them cheaper online, but here is the amazon link:

https://www.amazon.com/Sherline-LM-2...words=Sherline
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Old 10-19-2016, 04:17 PM   #10
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And if the Sherline is more than you want to spend, there's a poor-man's method to getting the tongue weight.

Measuring trailer tongue weight with a bathroom scale
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