Originally Posted by mozzi

One has to have SOME (even a little) understanding of physics here to understand what I’m about to explain.

Ever seen a dragster being launched off of the starting line…?
What happens… ? The front of the car lifts up off of the ground… he pulls a “wheelie”. Right ! What’s actually happening here though ?
We’re talking about torque. As the engine produces power or force… this force is transferred through the driveline to the axle. As the force to the axle is increased the weight (or downward pressure) on the steer tires is decreased. This happens with every vehicle… EVERY VEHICLE.
In a truck traveling down the highway, the amount of downward pressure on the steer axle is less while the vehicle is in an “ACCELERATION” mode than if it were sitting still. That same pressure would be “MORE” while in the “DECELERATION” mode which explains why your nose dips down when you hit the brakes. The faster the truck is accelerating, the lighter the pressure on the steer axle. At high speeds the steer axle is actually floating on the road… this effect is what causes “HYDROPLANING” on wet pavement.
If a driver is aware of this concept… while a steer tire blows… he need only apply the trailer brakes gently (PROVIDED HE/SHE HAS A TROLLY BAR) to keep the front end of his/her tractor “UP” while decreasing the vehicles speed.
Now you can say what you want too but, when I’m doing something that I think might be a bit risky… I want to know how to reduce the risk as much as possible

Originally Posted by Wikipedia

In automobiles, weight transfer (often confused with load transfer) refers to the redistribution of weight supported by each tire during acceleration (both longitudinal and lateral). This includes braking, or deceleration (which can be viewed as acceleration at a negative rate). Weight transfer is a crucial concept in understanding vehicle dynamics.

Weight transfer occurs as the vehicle's center of gravity (CoG) shifts during automotive maneuvers. Acceleration causes the sprung mass to rotate about a geometric axis resulting in relocation of the CoG. Front-back weight transfer is proportional to the ratio of the center of gravity height to the vehicle's wheelbase, and side-to-side weight transfer (summed over front and rear) is proportional to the ratio of the center of gravity height to the vehicle's track.

Originally Posted by mozzi

Rev.vassago:
Sir, aren’t you a bit arrogant…. maybe a bit hipicritical even ?

Originally Posted by ironeagle2006

Also I did not get my CDL from a driver mill I got mine the old fashion way MY FATHER sitting in the jump seat training me when I screwed up he let me know.

Originally Posted by zz4guy

I was doing 100 in my camaro yesterday and it got me thinking - what would it be like to have an 80,000 lbs rig going that fast?? :shock:

Post your stories and locations of where you hit the speed.

Originally Posted by mozzi

Hey Scout...
Your wrong.... Just plain wrong.

For starters, a tractor trailer is not an automobile. When will you rookies realize this ?

Secondly, GOOGLE doesn't know S&*t about weight transfer in a tractor trailer.

I have personally seen (with my own eyes) my own steer tire fly past my mirror and window on the drivers side. There was nothing whatsoever to indicate that the tire was flat or even completely seperated from the rim until I let off the foot feet (Gas pedal for you rookies) at which point the nose settled down and the left side dipped down. At this point, the left steer rim hit the pavement and I was absolutely positive that the tire that I had wittnessed flying by my window was mine.

So you can't tell me that I'm wrong.... you just depend on your GOOGLE to tell you about life and I'll go on living it and learning by EXPERIENCE.

Originally Posted by zz4guy

I was doing 100 in my camaro yesterday and it got me thinking - what would it be like to have an 80,000 lbs rig going that fast?? :shock:

Post your stories and locations of where you hit the speed.

Originally Posted by ironeagle2006

39 months total time OTR driving I was not a 6 month wonder. Also I did not get my CDL from a driver mill I got mine the old fashion way MY FATHER sitting in the jump seat training me when I screwed up he let me know.

Originally Posted by ironeagle2006

Forced off OTR driver with 1 million miles accident free name the commidity I pulled it. Dead bodies?

/quote]


1,000,000 miles / 39 months = 25,641 miles per month. Care to explain how you managed that? :roll:

I smell B.S.