Center of Gravity.... Bantam T3-C

Salty1

New member
I am in the process of designing a rack system for my Bantam trailer and am concerned about how high it can reasonably be built to support a RTT without seriously affecting the center of gravity when off-road. I am sure others have already figured this out and solved the problem so I am looking for somebody with experience who is willing to share their knowledge. My initial thoughts are to have the rack built so that the bottom of the RTT is 6 feet off the ground and 28 inches about the top trailer rail. This height will allow me to install my Thule Adventurer under the RTT, although it is not necessary to have this I feel it will be a nice to have item leaving the trailer bed available for other items and the Thule could be removed to haul kayaks. The most important thing to me is stability when off road, understanding that the higher I go the less stable it becomes. Any thoughts? Thanks..............
 

Rutdigger

Watch This!
I have always been told from experienced builders to try and keep the height within 10 to 15% of the width.
 

Robert Bills

Explorer
I own a Bantam T3-C with "covered wagon" type cover and Yakima style roof rack rails which are approximately 70" from the ground.

My personal opinion is that due to the relatively narrow track of MBT, T3, T3-C, M100 and M416 trailers, the weight of a RTT that high would render the trailer much more susceptible to a rollover offroad even with substantial weight loaded near the trailer floor. I base my opinion on my own experiences and also having witnessed several 1/4 ton military trailer and T3-C rollovers through the years. I know that several 1/4 ton trailer owners have mounted RTTs that high with no adverse results (yet), but I wouldn't do it. I have no issues with RTTs mounted close to the trailer tub.

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Salty1

New member
I own a Bantam T3-C with "covered wagon" type cover and Yakima style roof rack rails which are approximately 70" from the ground.

My personal opinion is that due to the relatively narrow track of MBT, T3, T3-C, M100 and M416 trailers, the weight of a RTT that high would render the trailer much more susceptible to a rollover offroad even with substantial weight loaded near the trailer floor. I base my opinion on my own experiences and also having witnessed several 1/4 ton military trailer and T3-C rollovers through the years. I know that several 1/4 ton trailer owners have mounted RTTs that high with no adverse results (yet), but I wouldn't do it. I have no issues with RTTs mounted close to the trailer tub.

xHPIM0129.JPG.pagespeed.ic.GHnfhSmJfc.jpg
Your thoughts are in line with my concerns. Since I will spend a lot of time in rough terrain I need to reconsider the height issue as stability is my main concern and come up with other ways for water tight storage utilizing the available bed space as I do not want to be severely limited on trails because of a high center of gravity...

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