Hensley Arrow: How does it REALLY work?
There have been several discussions on this hitch that have become somewhat 'controversial'. I am NOT trying to stir this controversy/bashing back up. Instead, I'd like to see a good, intelligent di...
Forum Discussion
drfife wrote:
Read the threads about the Hensley "bump" when descending grades and using the transmission as a brake.
I've not heard or read of any sway issues while descending a grade. The only time the linkage can catch up to the tow vehicle is when the trailer's momentum exceeds the tow vehicle's momentum.
Russell,
I've not read of any sway issues either. That's because the HA does not rely on any "lockage" of its 4-bar linkage to achieve its sway control characteristics.
Ron
The HA does not "lock up".
The HA does not prevent the trailer from swinging.
Lateral forces on the TT's tires control the swinging.
The HA works by reducing the magnitude of lateral force and by moving the effective point of application closer to the TV's rear axle. This significantly reduces the ability of the TT to "steer" the TV.
This, alone, is sufficient to explain the HA's anti-sway capabilities.
