Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-25-2017, 09:23 PM   #1
2 Rivet Member
 
Currently Looking...
Santa Rosa Beach , Florida
Join Date: Apr 2016
Posts: 26
Advice, not sure I trust the "expert"

Picked up the new Airstream this morning. I am new to towing, so a lot of this is forgien to me.

Dealer set up the WDH, but after going to the scales, I think I still need to adjust more. Everything seemed fine, but from looking at numbers I seems to still be heavy o. The rear. Attached is my CAT scale sheet, what do you think?

Truck has 4900 front and rear axel ratings.
Attached Files
File Type: pdf titan weight.pdf (1.37 MB, 226 views)
__________________

Drennanb is offline   Reply With Quote
Old 02-25-2017, 10:59 PM   #2
Rivet Master
 
SSquared's Avatar
 
2013 25' FB Flying Cloud
Longmont , Colorado
Join Date: Jan 2012
Posts: 656
That weight ticket is not enough to answer the question. To really understand how your weight is distributed, you need to get three sets of weights.

1) Just the tow vehicle. You have to park the trailer and disconnect the TV to do this.
2) With the trailer connected, but with the WD not hooked up.
3) Trailer connect with WD connected. This is the one you already have.

By comparing 1 and 3, you can see how much weight is added or removed from each axle when you hook up the trailer. With 1 and 2, you can find out what the tongue weight of the trailer is (subtract the total in 1 from the tow vehicle axle total in 2).

There are different ideas of what is "right" in terms of how much weight the WD hitch should transfer.

For many vehicles, the owners manual will have a section on towing. It should tell you what to aim for when using a WD hitch. It will talk about getting the front axle to the same weight as without a trailer, or maybe to a point where it is halfway between what the front axle weighs in number 1 and number 2. The manual may talk about fender height comparisons instead of weight comparisons.

There is another school of thought that says you want to get WD hitch set to where about 1/3 of the tonque weight on the front axle, 1/3 on the rear axle, and 1/3 on the trailer axles. This is a LOT of WD force, and most people that aim for this find out they can't achieve it.

There's a newer school of thought that says the more WD force you have, the lighter the TV rear axle is, and therefore the more the TV is at risk of "oversteering" in a corner. That's when the rear end skids/slips. When that happens it is very difficult (if not impossible) for the driver to recover. Oversteer is much more dangerous than understeer (where the front slides toward the outside of the corner). From this point of view, you want the front axle weight to be around that "halfway between 1 and 2" weight.

Then of course, there is how it behaves on the road. Using my rig as an example, my owners manual says to set the WD so the front axle weight is about what it is without the trailer connected. When my rig is set that way, it feels a little bit squirrely. But if I go tighter on the WD bars, to where the front axle is 250-300 pounds more, it feels significantly better.
__________________

SSquared is offline   Reply With Quote
Old 02-26-2017, 05:33 AM   #3
Rivet Master
 
Llando88's Avatar
 
2016 30' Flying Cloud
Tampa , Florida
Join Date: Jun 2015
Posts: 656
Quote:
Originally Posted by SSquared View Post
That weight ticket is not enough to answer the question. To really understand how your weight is distributed, you need to get three sets of weights.



1) Just the tow vehicle. You have to park the trailer and disconnect the TV to do this.

2) With the trailer connected, but with the WD not hooked up.

3) Trailer connect with WD connected. This is the one you already have.



By comparing 1 and 3, you can see how much weight is added or removed from each axle when you hook up the trailer. With 1 and 2, you can find out what the tongue weight of the trailer is (subtract the total in 1 from the tow vehicle axle total in 2).



There are different ideas of what is "right" in terms of how much weight the WD hitch should transfer.



For many vehicles, the owners manual will have a section on towing. It should tell you what to aim for when using a WD hitch. It will talk about getting the front axle to the same weight as without a trailer, or maybe to a point where it is halfway between what the front axle weighs in number 1 and number 2. The manual may talk about fender height comparisons instead of weight comparisons.



There is another school of thought that says you want to get WD hitch set to where about 1/3 of the tonque weight on the front axle, 1/3 on the rear axle, and 1/3 on the trailer axles. This is a LOT of WD force, and most people that aim for this find out they can't achieve it.



There's a newer school of thought that says the more WD force you have, the lighter the TV rear axle is, and therefore the more the TV is at risk of "oversteering" in a corner. That's when the rear end skids/slips. When that happens it is very difficult (if not impossible) for the driver to recover. Oversteer is much more dangerous than understeer (where the front slides toward the outside of the corner). From this point of view, you want the front axle weight to be around that "halfway between 1 and 2" weight.



Then of course, there is how it behaves on the road. Using my rig as an example, my owners manual says to set the WD so the front axle weight is about what it is without the trailer connected. When my rig is set that way, it feels a little bit squirrely. But if I go tighter on the WD bars, to where the front axle is 250-300 pounds more, it feels significantly better.

This is the clearest, most easy to understand post on this I've ever seen.

Thank you.
__________________
2016 30' Flying Cloud / 2016 Ram 2500 Diesel 4x4

“Character is doing the right thing when nobody’s looking. There are too many people who think that the only thing that’s right is to get by, and the only thing that’s wrong is to get caught.” - J.C. Watts Jr.
Llando88 is offline   Reply With Quote
Old 02-26-2017, 06:25 AM   #4
Rivet Master
 
Bigventure's Avatar
 
2016 30' Classic
Currently Looking...
Hinckley , Ohio
Join Date: Sep 2009
Posts: 717
Images: 4
I would tighten up on the spring bars to get the front and rear number closer to equal.

Was everything full? Fresh water, gas, propane? Ready to camp with stuff in the trailer?
__________________
If you could have a superpower, what would it be?

I chose America
Bigventure is offline   Reply With Quote
Old 02-26-2017, 06:27 AM   #5
4 Rivet Member
 
1977 31' Sovereign
2005 30' Safari
1977 28' Argosy 28
North Port , Florida
Join Date: Mar 2007
Posts: 282
You're truck seems to be balanced fairly well. If you don't have easy access to a scale, measuring is also an accurate way of setting up your vehicle. Take measurements from the ground to the wheel well at the front & rear unloaded. After attaching the trailer, aim to bring the front back down to the unloaded height, or just slightly lower. Also check to make sure the rear hasn't come up more than unloaded (this doesn't happen much but worth verifying)

You could also have your truck weighed at most scales from scrap yard, landfills, transfer stations etc... if you want to know what the truck weighs by itself.
cliffcharb is offline   Reply With Quote
Old 02-26-2017, 04:08 PM   #6
2 Rivet Member
 
Currently Looking...
Santa Rosa Beach , Florida
Join Date: Apr 2016
Posts: 26
Thanks everyone. I'll do some more checks in the next few days to dial it in better.
Drennanb is offline   Reply With Quote
Old 02-27-2017, 09:13 AM   #7
Rivet Master

 
2015 27' Flying Cloud
Portland , Oregon
Join Date: Nov 2009
Posts: 518
Send a message via AIM to hhendrix Send a message via Yahoo to hhendrix
Ssquared has it right. I've done this at a local truck scale and was able to get much better balance on the trailer axles.
__________________
The ability to follow instructions is highly underrated.
hhendrix is offline   Reply With Quote
Old 02-27-2017, 10:37 AM   #8
Rivet Master
 
1988 25' Excella
1987 32' Excella
Knoxville , Tennessee
Join Date: Oct 2010
Posts: 2,875
Blog Entries: 1
The good news is that you are under the axle weight ratings. Yes, you can maybe tune it a little for weight distribution but if it pulls well now you are probably not looking at a big change. If getting a full set of weights is inconvenient then a quick check of the front fender height unhitched and than again after hitching will at least tell you if you are close or need more work.
Bill M. is offline   Reply With Quote
Old 02-27-2017, 10:39 AM   #9
Rivet Master
 
Mollysdad's Avatar
 
2017 26' Flying Cloud
Tampa , Florida
Join Date: Feb 2017
Posts: 3,458
Tell me the procedure for using scales.
Do you have to ask first? Or just drive on?
Do you stop? Where do you pay?
Mollysdad is online now   Reply With Quote
Old 02-27-2017, 02:06 PM   #10
Rivet Master
 
Lakes Region , New Hampshire
Join Date: Feb 2016
Posts: 815
Quote:
Originally Posted by Mollysdad View Post
Tell me the procedure for using scales.
Do you have to ask first? Or just drive on?
Do you stop? Where do you pay?
I stop by the office first, I've been told by others they don't, I've found that the ones in my area are more receptive when you do, this way you can find out if there is anything specific to their location.
RandyNH is offline   Reply With Quote
Old 02-27-2017, 02:35 PM   #11
Rivet Master
 
dkottum's Avatar
 
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
I like to stop at the office first to make sure they know what we want to do. Once we drove onto the scales and then walked over to the office and they had it weighed before we got back into the truck. Then we had to drive off and around again before they could do a second weigh.

They have the mike and speaker (high) on the scale for communicating, but it's often too garbled for my worn out ears and hearing aids to comprehend.
__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles

The Truth is More Important Than the Facts
dkottum is offline   Reply With Quote
Old 02-27-2017, 04:47 PM   #12
Rivet Master
 
jayseejay's Avatar
 
2015 27' FB Eddie Bauer
2011 25' FB Flying Cloud
Fernandina Beach , Florida
Join Date: Sep 2013
Posts: 535
We use the Weigh My Truck app by CAT Scale, tied to our PayPal account. Drive onto the scale, put in the number located on the scale post, click "accept" for the $11 charge, and it weighs your rig then emails you the report. Never have to speak with anyone there, if you don't want to. You can reweigh within 24 hours for an additional $2, but that does require speaking to the attendant.
__________________

jayseejay is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Just bought a 1977 28ft Argosy- Need Your Expert Advice GarrettRing All Argosy Trailers 18 05-15-2011 05:58 AM
Need electrical system expert advice boondockdad Electrical - Systems, Generators, Batteries & Solar 25 11-16-2008 05:03 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:13 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.