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Legal weight for an eighteen
wheeler
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Length of eighteen wheelers
●
Length of time
needed to stop an eighteen wheeler
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What is the
turning radius of eighteen wheelers?
●
What
does an eighteen wheeler cost?
●
What is the "fifth
wheel" ?
●
How many gears does an 18 wheeler have?
●
What is "bobtailing" ?
● What Is The Standard Height Of An Eighteen Wheeler?
● What Is A "Tandem" ?
● What Is A Jack-Knife Accident?
●
Eighteen Wheeler Manufacturers?
●
How Many Axles Does
An Eighteen Wheeler Have?
Legal weight for an eighteen
wheeler
The legal weight for an
eighteen wheeler is 80,000 lbs. [40 tons].[ 36287 kg
Canadian] That is without any oversize or overweight permits. In
comparison, the average automobile weighs over somewhere around 5,000
lbs.
legal U.S. weight per axle is: STEER 12,000 lbs DRIVES
34,000 lbs TRAILER 34,000 lbs
legal Canada weight per axle is: STEER
5443 kg DRIVES 15422 kg TRAILER
15422
kg
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Length of eighteen wheelers
The average length of an
eighteen wheeler varies greatly depending on the type of cab they are
driving. But the overall average is 70-80 ft. long. The length
of an eighteen wheeler's cab [by wheelbase] usually averages between
245"
to 265" wheelbase. This is measured from the center of the rear
wheel to the center of the steer.
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Length of time
needed to stop an eighteen wheeler
The length of time to stop an
eighteen wheeler is 40% greater than that of an automobile. Depending on
the weight of their load, whether they are bobtailing, road
conditions, and other factors. To be sure, it takes a much
greater time to stop than an automobile... period. Trucks only have 10 brakes NOT eighteen as
some have told me they thought. Trucks made now are required to have
anti-lock brakes.
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What is the
turning radius of eighteen wheelers?
Click
HERE for more information on the turning radius of eighteen
wheelers.
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What does an eighteen wheeler
cost?
While there are myriad variables on the costs, the CAB of an eighteen
wheeler usually ranges from $80,000 to $120,000 new. The trailers usually
range from $30,000 to $60,000 new. So all in all you could look at $150,000
for both NEW if you get a good deal.
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What is the
"fifth wheel" ?
The fifth wheel on an 18 wheeler is a round
plate above the drive tires that couples [hooks together] the
trailer to the truck.
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How many gears does an 18 wheeler have?
The most common amount of gears in an 18
wheeler today is 10 forward and 2 reverse gears.
Although they can range from 9, 10, 13, 15,
and 18
gears!
Eighteen wheeler drivers use a "double-clutch"
technique for shifting. It is much
different to drive a truck compared to a car with a
standard transmission. In a car the rpm's
match up and in a truck they do not therefore the
clutch is depressed and then depressed again to
"match" the gears with the rpm's. Most
drivers use what they call "floating" which does
NOT use the clutch at all except to start and
stop. "Floating" is an acquired skill
that takes some practice to get used to.
"Floating" gears saves fuel (when done properly) and
saves wear and tear on the equipment.
"Floating" is the preferred method.
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What is "bobtailing" ?
Bobtailing is the term used when a truck is
driving WITHOUT the trailer attached.
This is very dangerous especially in wet weather but obviously must be done
at times.
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What is the standard height of an
eighteen wheeler?
The standard height of eighteen wheelers is: 13' 6"
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What Is A Tandem ?
A
"Tandem" is a set of TWO tires on a
tractor-trailer. They are used for safety (redundancy)
so if one tire blows the others will continue to
hold up until the tire is repaired.
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What Is A Jack-Knife
Accident?
Basically, a jack-knife accident is when the trailer contacts the
tractor by the trailer "coming around" on the driver. It is said that once a
trailer exceeds a 45 degree angle, compared to the tractor, that a
jack-knife is inevitable. This can be caused my many things and happens
when the trailer wheels start to skid and actually ends up moving faster
than the cab. Usually this happens on icy or wet roads but it can happen on
dry roads when the trailer is empty and the driver has to do some very hard
braking.
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Eighteen Wheeler Truck
Manufacturers
There are a variety of brand names for eighteen
wheelers; among them are: Peterbilt, Freightliner,
Kenworth, Volvo, Mack,
Western Star, to name a few more popular trucks.
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How Many Axles Does An Eighteen Wheeler Have?
An eighteen wheeler has a total of five (5)
axles.
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