Small Travel Trailer Frame Design Question

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Re: Small Travel Trailer Frame Design Question

Postby alaska teardrop » Fri Jun 12, 2020 3:16 pm

Jerlands,

In 2006 our now moderator, Paul C, introduced the forum to the Australian government's trailer tongue strength regulations. It is the only engineered formula that I know of. Paul also cautioned about welding on the tongue rails where they meet the front of the cabin, (as an example welding across the top or bottom flanges).

Andrew deciphered the information in the below seven pages. Where as the newer pages already posted and which may not work, these original pages give the formulas and explain how to use them. This allows a person to precisely engineer their own trailer chassis.

Andrew added the three other pages in 2013 to clarify mainly the difference in requirements between braked & none braked trailers.

All the pages are from printouts made at the time, saved and used in my own designing.

Note that specifications for not all steel shapes & sizes are given, but they can be found on industrial steel sales websites.

LINKS to FILES

File Sizes are as listed:
Resolution 200 (printable)
8.5”x11"

http://stacietamaki.com/tnttt/tongue-st ... 1-of-7.jpg (1.4 MB)
http://stacietamaki.com/tnttt/tongue-st ... 2-of-7.jpg (1.7 MB)
http://stacietamaki.com/tnttt/tongue-st ... 3-of-7.jpg (1.5 MB)
http://stacietamaki.com/tnttt/tongue-st ... 4-of-7.jpg (1.1 MB)
http://stacietamaki.com/tnttt/tongue-st ... 5-of-7.jpg (1.6 MB)
http://stacietamaki.com/tnttt/tongue-st ... 6-of-7.jpg (2.1 MB)
http://stacietamaki.com/tnttt/tongue-st ... 7-of-7.jpg (1.2 MB)


http://stacietamaki.com/tnttt/Sample-To ... -Table.jpg (860 kb)


http://stacietamaki.com/tnttt/Unified-T ... 1-of-2.jpg (1.5 MB)
http://stacietamaki.com/tnttt/Unified-T ... 2-of-2.jpg (791 kb)

Thanks to Stacie Tamaki for helping to supply readable links.

Also this thread about building a strong lightweight chassis:

viewtopic.php?f=35&t=12220

Fred
Northern Lite Traveler design: viewtopic.php?f=27&t=51991
Minimalist torsion axle frame: viewtopic.php?f=35&t=12220
Alaska Teardrop photo gallery: http://tnttt.com/gallery/album.php?album_id=2014
Glampette photo gallery; gallery/album.php?album_id=2983&sk=t&sd=d&st=0
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alaska teardrop
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