Backing up doubles

I've backed out of fuel pumps before it is doable. I saw a driver in Chicago 45 degree dock back a set to drop his tail. That was inpressivevv

 

Backing any combination is about steering the congear/dolly. Beau that is a B train.

 

I had a fun one years ago. Took a load of suger in a pneumatic set to L.A. The railroads were on strike or something whereas they could'not get railcars down to unload into an auger.
So...take a set....drop rear trailer...go around the block, nose in to rear trailer, hook a bumper pin, ( no spring brakes on rear trlr) push and pull ( trlr/tractor/trlr) down concrete rail spur to drop load into floor auger. Repeat as necessary. Messed my mind until I did it. Simple actually.

 

Nope that's a set of double pneumatic dry bulk tanks with a turntable con gear. Drove the same set up for a few years w/ 8 axles. You can back those up, carefully.

 

https://goo.gl/images/WTJGMh
B train.

 

What kind of double? I've been doing B-trains (flat) for just over 6 months now and I've finally started to grasp how to properly control them in reverse (at the beginning, there was a lot of pull-up corrections).

The key to getting them to go backwards in a relatively straight line is to use VERY tiny adjustments on the steering (I'm taking an inch or two at most) and to start counter-steering before the rear trailer (pup) starts going the other way. Also, a good setup is key to getting it done quickly.

It's really hard to describe without being able to show you in a truck. But I can tell you, once you get a hang of it, they are much more enjoyable to drive.

 

With B trains you steer the tri-axle group just like a set when backing. Sets just have one more pivot.