by Corwin C » Mon Sep 30, 2013 9:31 pm
There are very different considerations when towing a long trailer versus a short one. I have driven semi-tractor trailer and dump truck-pup combinations. I have hauled piloted loads close to 80' long and others that were 14.5' wide. Big and long trailers can be REAL tricky on corners and intersections mainly because the back tires do not follow in the tracks of the truck. In sharp corners the tracks of the trailer may not even be in the same lane as the truck. To turn right into a driveway or through a gate is sometimes impossible because it needs the additional room that the oncoming traffic lanes provide. The blind spots become suicidal refuges for idiots in small cars and being able to determine where the back of the trailer is when moving lane to lane in traffic is a true challenge that not everyone is capable of. BUT - I can confidently back one faster than most people jog if I have a clear space and the need to do so.
There is definitely a length at which it becomes more difficult than a shorter trailer.
For our purposes here, however, the "bumper pull" trailer that in my experience has been the easiest to pull and maneuver is a 14' long tandem flat bed (18' ball to bumper.) It is long enough that backing performance is predictable and consistent and yet it isn't so long that I have to constantly watch for the dreaded side tracking that is present in a longer trailer. It is present, but very manageable. The tandem smooths out the front to back rocking that can be present in a single axle trailer especially when loaded. For me it's just comfortable.
Goose-neck trailers behind a pickup are a close second, but even at a mere 20'-25' long that side tracking issue becomes something to be watched ... constantly. Backing a goose-neck seems to require exaggerated turns to get it to change where it is going because the hitch is usually just in front of the axle.
Short trailers are wonderful to pull, in fact some have mentioned that it's possible to forget that they're there, but slow and careful is the absolute rule when backing. They will shoot off to one side in an instant. Contrary to what some may say, I believe that anyone can learn to back one of these up, but it takes practice and patience.
In all of these cases, the configuration of the tow vehicle is a factor as well. The main considerations seem to be how far behind the axle is the hitch point? and how maneuverable is the tow vehicle? A trailer that backs nicely behind a jeep may be a handful behind a pickup truck both because the jeep is more maneuverable (shorter) and because the pickup has a longer distance from axle to hitch.
Corwin
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and no one should be expected to accept anything less. -- myself