C-dolly ?

Came across these while searching for a converter dolly. Ties in at 2 pintle hitches instead of 1 and has a self steering axle. Would work great for a project I'm working on but I can't find a single used one for sale and only a handful out of Canada. I did search the forum and there are a few threads that mention them, with one stating UPS tried them years ago and they never caught on.....but no real details. Has anyone used these or seen them used? Are they legal for use in the US? I have sent some emails out to the DOT and two companies that build them but neither company is headquartered in the US. I'm wanting to use one in a recreational application, non-commercial, but I can't find one anywhere. I've never pulled doubles or even used a standard converter dolly but this C-dolly would be perfect if I can find one and they are approved for use in the US. Thought I'd check with some of you guys to see if anyone has any information or experience with them. Thanks.

 

Thanks.. That at least tells me that they are out there and someone uses them. Sets a little precedence that they are approved in the US.

 

Seems like it would be a good alternative to the standard converter. Like I said, I've never used a converter dolly but they just look like they would ball up between your trailer in a hard stop.

 

I would imagine they have brakes, and the trailer I would be pulling has brakes as well, although they are electric. That was a big concern with my application and using a standard converter. I'm not sure how much of a time lag there is when converting the air brake signal (air pressure change) through the controller, to electric, and application of the trailer brakes. If the electric trailer brakes were ever slow to react, then I think the standard converter could get real scary. I think the C-dolly would protect against any possible jackknife as well as reduce most of the sway you see on these doubles and triples rolling down the interstate. I'd only be putting 16-18k on it and only about 4K tongue weight so it would actually be a little overkill.

 

Sorry Mack E-6, I somehow put a ? In your post when I read it and answered a question you never asked.