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
Hey Will,
Your thread made it to Page 50.
Ed,
I have stated previously (and Tim Luxon has confirmed with his diagrams -- somewhere back around Page 6) that, due to the HA's linkage geometry, the VPP moves about 20" to the side of the TV's longitudinal centerline when the angle between the TV and TT is about 4 degrees.
This means that, even with a relatively small angle between TT and TV, any forward thrust from the TT will be acting over a "steering lever arm" of more that 1.5 feet. In other words, any forward thrust from the TT would have a tendency to steer the TV. This is why it is important not to allow a HA-equipped TT to push against the TV no matter what the angle -- especially if the HA is being used to compensate for a short wheelbase.
Ron
Your thread made it to Page 50.
bettered wrote:
Ron says: "Because of the way the HA's linkage works, it is especially important to ensure a HA-equipped TT is not allowed to push on the TV."
To which I would suggest we append: "....in a cornering situation where one link has had a chance to go past the center position." I'm guessing this would be almost a 30 degree turn.
Ed,
I have stated previously (and Tim Luxon has confirmed with his diagrams -- somewhere back around Page 6) that, due to the HA's linkage geometry, the VPP moves about 20" to the side of the TV's longitudinal centerline when the angle between the TV and TT is about 4 degrees.
This means that, even with a relatively small angle between TT and TV, any forward thrust from the TT will be acting over a "steering lever arm" of more that 1.5 feet. In other words, any forward thrust from the TT would have a tendency to steer the TV. This is why it is important not to allow a HA-equipped TT to push against the TV no matter what the angle -- especially if the HA is being used to compensate for a short wheelbase.
Ron
