boggy wheels

Like this eh

Hey Doug,
That certainly makes it look easy LOL

Watched a bloke reverse one of these into a driveway (at 90 degrees) off a main road in a small town in NZ once. 100 points.

I tried it in my brother in laws truck and got half way before I stopped. Needed practice and the traffic was getting a little hot under the collar. No one saw us change over and he just slipped it in and we (mainly he - not me) actually got a thumbs from one driver. I need HEAPS more practice before I ever try it again. Pass!!!!!

Phil

Amazing the effect when you run a video/film backwards. It's really video of a combination driving out of a parking space ! Sure fooled me at first view.

DIO
Thanks for your comment. sometimes it's easy to fool a fool , but I having been in the trucking game for 30 years have seen this performed in reallity at the BP truckport at Gepps Cross, SA and other depot's, secondly that you tube does not have any flicks to suggest it has been modified and why would they, it can be done and done easy once one gets used to the rig, I have also seen drivers reverse a low loader and a dolly off a street and into a narrow gateway in Perth, now that is difficult because of the short distance between the wheels and the pivot point (turn table).
Here is the very truck I'm refering too being loaded in Mt Isa .

Image Could Not Be Found
Image Could Not Be Found
.

DIO, If the guy was driving out instead of backing in why would he have the prime mover at right angles to the first trailer at one point.
You obviously don't know a lot about trucks.

If thats the case why didn't the truck just go in an even ark like when you normally drive out and if you watch the prime-mover it actually is chasing the trailers. I have seen this hundreds of times B Doubles reversing into warehouse docks in one go.

Most will have seen a tipper and dog reversed so that the dog trailer is alongside the rigid truck, but I have seen this done with a double road train and line up alongside the loading point.

Swaying is over excaddurated (excuse spelling) crap.
Anything being towed can only follow what the towing vehicle is doing. ie a Semi trailer or Road Train, the rear most trailer can only follow what the steer tyres on the prime mover are doing, known as the swept path.
I regularly travel on roads frequented by Road Trains, and having driven them myself, I still haven't observed swaying.
I have observed swaying by vehicles that you only need a car licence for towing poorly loaded trailers that sway, where the towed item takes charge of the towing vehicle. The most recent example of this was seen on Highway 1 near Port Augusta recently, a Crewman ute towing a car trailer with a 1 ton ute on the back, with the V8 engine from the ute on the tray of the 1 tonner. Poorly loaded. As it approached me I could see the trailer was in charge of the crewman, not the crewman in charge of the trailer, I moved to the left of the road, right onto the fog line. After it went past me, I continued to watch in the rear view mirror and it would not have been 500 yards before there was lots of dust, both dirt and rubber and this combination was going sideways across the highway.

As to the initiating post, this type of caravan would be most stable. The swept path as being towed will be different to that than if the wheels were in the centre like a conventional caravan.
For stability, the towbar needs to be in good condition, there needs to be the correct fit of the coupling onto the towball. If a HR or any type of receiver hitch towbar is used, there can't be any sideways slop within the tubes. And there also needs to be a good fit in the 5th wheel. Also suspension components need to be in sound condition.
There would be no reason why this type of caravan set up as a 'Dog Trailer' would not be pleasurable to tow.
Over ride brakes would not be suitable, brakes would need to be actuated by the towing vehicle to work uniformaly on all wheels.

I've been thinking of building a dog trailer too for the increased capacity to load with firewood. Until then, I'll just have to make do with towing one trailer behind the other, which incidently do not have any sway, I've tried deliberately to cause sway, but as soon as my steering is straight, the two (sometimes) three trailers are following as straight as what my ute is travelling.

Cheers,
Dion.

Dion - You are not correct in what you say - obviously you have never followed a triple road trains on WA gravel Outback Roads - The sway that those trailers can get up has to be seen to believed. It also takes some good timing to set up to overtake them. I have also witnessed it on many a double road train, the last trailer definitely gets a sway up, especially on windy days.

Mmmmm, mussssttttt bbeeee diffffferenntttt gravel.

Cheers,
Dion.

We had a few for the trainee drivers to practice with. They were reasonably easy to reverse because we had extra long drawbars put on ours. (helped to be RAEME).

Terrain and road performance is reduced a lot with them unless designed for off road. Usually only the Army type of budget.

Everyone had to reverse 100 yards before they passed. And with an old mark 1 or mark 3. Laugh. But they got it in the end.

I would prefer not to use a dog trailer.

Phil

100 points. But it also helps to have a long drawbar.