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Old 12-30-2007, 11:13 AM   #71
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Quote:
Originally Posted by Ron Gratz
And, if you lifted the tires of a HA-equipped TT, you could swing the TT with no resistance from the HA's linkage.
Sorry, Ron, this is not correct. Stop by an RV show sometime and lift up the rear unit of the demo and see if you can swing it with no resistance. You won't be able to do it and that is with only the light weight of the demo unit tow vehicle.
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Old 12-30-2007, 07:29 PM   #72
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Quote:
Originally Posted by ZenfookPower
I am just relying on a full scale model I build and it doesn't support what you are telling here..


I hold the TV side of the model in my RH and try to twist or move the TT side of the model (simulating yaw, sway...) then the entire model moves.. This trapezoid is LOCKED once you induce a movement from the TT and the trapezoid is flexible once you induce a move from the TV.
I built a full scale model of the linkage four years ago. Everything I've posted about the kinematics of the HA's linkage is supported by my physical model.

I fully agree that if you "twist" the TT side of the model while restraining the TT side from moving laterally, you can make the linkage appear to be "locked". However, I was not talking about applying a "twisting" to the TT side.

I stated that if you lifted the tires of a HA-connected TT off the ground, you could push laterally on the TT and make it swing. If you want to simulate this on your model, simply hold the TV side and push laterally (not "twisting") on the TT side. Then you will see that the linkage does rotate freely and the TT side does swing laterally.

Ron
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Old 12-30-2007, 08:33 PM   #73
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Quote:
Originally Posted by Ron Gratz
I built a full scale model of the linkage four years ago. Everything I've posted about the kinematics of the HA's linkage is supported by my physical model.

I fully agree that if you "twist" the TT side of the model while restraining the TT side from moving laterally, you can make the linkage appear to be "locked". However, I was not talking about applying a "twisting" to the TT side.

I stated that if you lifted the tires of a HA-connected TT off the ground, you could push laterally on the TT and make it swing. If you want to simulate this on your model, simply hold the TV side and push laterally (not "twisting") on the TT side. Then you will see that the linkage does rotate freely and the TT side does swing laterally.

Ron
Ron, I have lifted the rear end of the demo unit, with an actual hitch on it, more times than I care to remember. Conservatively speaking, I've done this 5,000 times in my life. The links do not allow that end of the demo, the TT end, to swing freely from side to side. I'm just stating a physical fact here not commenting on theories and models.
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Old 12-30-2007, 09:15 PM   #74
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Quote:
Originally Posted by Ron Gratz
I fully agree that if you "twist" the TT side of the model while restraining the TT side from moving laterally, you can make the linkage appear to be "locked".
Yes, that is correct...It is locked.. "is" is the affirmative of what appears to be "locked"..(let's not start discussing what "is" is...)

Quote:
Originally Posted by Ron Gratz
I stated that if you lifted the tires of a HA-connected TT off the ground, you could push laterally on the TT and make it swing. If you want to simulate this on your model, simply hold the TV side and push laterally (not "twisting") on the TT side. Then you will see that the linkage does rotate freely and the TT side does swing laterally.
But that is NOT how reality is..My TT tires stay on the road..

The yaw or sway induced by the TT will NOT be transmitted to the TV because of the locked condition of the trapezoid linkage..

What are you trying to prove that the HA/3P doesn't control/eliminate sway..???
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Old 12-30-2007, 09:18 PM   #75
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Agree to dissagree or action will take place!

>>>>>>>>>>>>>>>Action
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Old 12-30-2007, 09:38 PM   #76
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Agree to dissagree or action will take place!....
i agree!

oh wait, i disagree!

well u know what i mean...

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Old 12-30-2007, 10:18 PM   #77
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Agree to dissagree or action will take place!

>>>>>>>>>>>>>>>Action
Hi, come on "Action" let them be; It's getting really interesting. No harm done.
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Old 01-01-2008, 04:33 PM   #78
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Simplified

I am guessing this is as simple as it gets.


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Old 01-01-2008, 04:37 PM   #79
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My head is spinning. That YouTube link was what started post #1 in this thread. Its okay though Devo -- you've got a rally to go to. When Michelle left my driveway 3 weeks ago she wondered if the ice around her Airstream's tires would keep it frozen in place. Inquiring Floridians want to know?? Or not.
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Old 01-01-2008, 04:40 PM   #80
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Hitch

Sorry about that.To much going on I guess.I have been getting lost in the forum quite a bit lately.I dont know what snow is down here but we are about to get a blast of really cold air that we have not had in quite a few years from what I remember.the next three days are going to be cold.Well...For me anyways.
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Old 01-01-2008, 04:50 PM   #81
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Even Hensley Mfg. is using this clip on their website here..This was mentioned before..

Here are some more shoots..I assume these shoots are just for demo purposes by using a constant left and right turning of the TV..

THIS clip demonstrates the movement the hitch ball will undergo as depicted in some diagrams earlier on in this thread..

Enjoy..
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Old 01-01-2008, 04:51 PM   #82
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Quote:
Originally Posted by CanoeStream
My head is spinning. That YouTube link was what started post #1 in this thread. Its okay though Devo -- you've got a rally to go to. When Michelle left my driveway 3 weeks ago she wondered if the ice around her Airstream's tires would keep it frozen in place. Inquiring Floridians want to know?? Or not.
I was joking. Kind of. If it had already been frozen then I would not have worried about it. SInce it was warm water running out under the trailer and freezing then it is possible for the tires to be frozen to the ground.
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Old 01-01-2008, 04:51 PM   #83
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Ok, I'll agree to disagree, to a point, Action.

From a guy who has been directly "involved" in over 10,000 of these sales this is my official statement.

There are many types of hitch designs out there in this great country. Just as there are many different people out there in this great country. The diversity of all of these hitches, and people, are what makes this a great country.

Some of these hitch designs may not be for you. Others may not be for them. That is exaclty the way it should be.

They all work. They work with different benefits for different people. We all make decisions based on different factors. It doesn't make our decisions wrong, it just makes them different. Back to the paragraph about diversity.

There are companies out there who think that they can market "stuff" and cram it down the customer's throats. They "market" with an attitude that the customer is an idiot and needs to be told what is the best "stuff" for them. I don't subscribe to that idea. Back to the paragraph about different hitch designs.

So, even though hitch discussions make for quite a few forum posts around this great, diverse, electronic world, it all boils down to intelligent people making intelligent choices that fit in their lives.

That's the real world, folks. At least my personal view of it.

Happy New Year to all of you! I appreciate all the kind words I have been PM'd, and all the emails and phone calls I have received supporting me in the launching of my business.
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Old 01-01-2008, 04:55 PM   #84
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Hitch

You know...I would really love to get one of these hensley or new proride hitches but I really dont think I need one at the moment.All my vehicle needs is the sway control because I have an automatic airsuspension.It adjusts it self on it own all the time.I will be looking at one of these in the future though.Just not right now.I still want one really bad and it is hard to hold back when I see one.
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