Hill Climbing Primer

   / Hill Climbing Primer #111  
Nope; never harp!:thumbsup:

But I do watch wrong perspective's. :D And try and give reasonable explanations.:D:thumbsup:
Reasonable can be correct, or not. Factual physical science is never unreasonable. Historically tho it has caused people who insist on it a lot of trouble.
 
   / Hill Climbing Primer #112  
Some other examples of a vehicles that has a ring gears that rotate in the opposite direction of most rear drive vehicles are the old VW buses that have the swing axle rear suspension, Mercedes Unimog and the Hummer. I am sure there are others but that is three. All of these have a gear attached to the wheel end of the axle that drives a gear on a stub axle attached to the wheel. So again using the concept of the pinion gear climbing the ring gear, then these setups would be pushing the Ring gear down and vehicles would not be able to do a wheelie. When I was a kid back in the 70's my family was in a dune buggy club several of the club members, including my dad's buggy used the VW set up I mentioned earlier and all of them could do wheelies.

I think what is confusing people is converting the rotational force (torque) from the tire to a linear force being resisted by the object being pulled and the effects of the height the pulling force has on how the vehicle will react. It's been a long time since I took statics.
 
   / Hill Climbing Primer #113  
Okay, I give. You guys win.

I'll stick with my previous opinion, it's fairies that cause the front to lift. It appears that my pinions are the only ones climbing the ring gear. So it's gotta be fairies. :)
 
   / Hill Climbing Primer #114  
and what if the object hitched to is not immovable?

Then it does move. However if the consolidated tractor?? Has a lower forward speed than designated engine RPM and gear selection while the tires have a no spin grip show and explain to us what happens??:thumbsup:

A simple force diagram would help!:D
 
   / Hill Climbing Primer #115  
Okay, I give. You guys win.

I'll stick with my previous opinion, it's fairies that cause the front to lift. It appears that my pinions are the only ones climbing the ring gear. So it's gotta be fairies. :)

You gotta watch out for the Wee Folk. Afore you know it they will have you partaking of their Magic Brew and all you will see is two flat front tires from overload and your tractor sitting in a big hole it dug when turning the front end under.

And they'll convince you that the tractor your squished under is really sitting upright and all is good.
 
   / Hill Climbing Primer #116  
Some other examples of a vehicles that has a ring gears that rotate in the opposite direction of most rear drive vehicles are the old VW buses that have the swing axle rear suspension, Mercedes Unimog and the Hummer. I am sure there are others but that is three. All of these have a gear attached to the wheel end of the axle that drives a gear on a stub axle attached to the wheel. So again using the concept of the pinion gear climbing the ring gear, then these setups would be pushing the Ring gear down and vehicles would not be able to do a wheelie. When I was a kid back in the 70's my family was in a dune buggy club several of the club members, including my dad's buggy used the VW set up I mentioned earlier and all of them could do wheelies.

I think what is confusing people is converting the rotational force (torque) from the tire to a linear force being resisted by the object being pulled and the effects of the height the pulling force has on how the vehicle will react. It's been a long time since I took statics.
This has become quite silly. Any setup of driveshaft to rear axle will be set up to rotate the wheels forward when power is applied in a forward gear. Moving the pinion from the front to the back of the ring gear would only mean the drive shaft rotation direction was reversed not that the torque was now applied downward. And pinions don't climb up a ring gear as much as they walk around the circle. Stop the circle and the walk goes faster. Like walking up the down escalator and having them shut off the power. And last but not least is the weld the axle to the housing theory. That would amount to applying a very good parking brake and you would stall the engine, nothing more.
 
   / Hill Climbing Primer #118  
And last but not least is the weld the axle to the housing theory. That would amount to applying a very good parking brake and you would stall the engine, nothing more.
Right. no wheelie. Zero tendency to tip. You keep the force from output to ground and you have all forces consolidated in the tractor. That tractor is as stable as if it is off. Interact outsde the tractor and you have to be careful in dealing with output and load forces to ensure stability. External interaction is where its at. Tip is a rotation at the tire-ground interface unless the tire is truly frozen in place.
larry
 

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