CAT Scale weights are confusing me.
Weighted my truck and trailer Friday, before we went on a weekend camping trip. The trailer is brand new. It had never been out camping before. My WDH is the Blue OX Sway Pro. With 1k bars. I...
Forum Discussion
The 100 lbs difference between WDH and no WDH is mesuring difference of the scale, but this is not what you think is strange.
WDH transports a part of Hichweight from rear tires of TV to front tires of TV and Trailer tires, and that is yust what you noticed when weighing.
The difference rear axle between only TV and trailer with WDH disengaged, is 4640lbs-3340 lbs= 1300 lbs, and you think then that this is the tonge-weight.
But this is by leaverworking not the tonge-weight.
Example : asume hich of TV placed half of the wheelbase ( distance front axle to rear axle)behind the rear axle, then real hich weight would be 1/1.5=2/3th of that is 865 lbs . But you can measure it yourselfes acurate enaugh to estimate your real tonge-weight.
The front axle is lifted up a bit by that same leaver working.
It gives for same compare
, 3660lbs-3340 lbs= 330 lbs less.
You can also substract the front from rear is 1300 lbs - 330 lbs= 970 lbs.
And this is your tonge weight exactly , only difference can be measuring differences of scale.
From this we can also calculate howmuch your hich of TV is placed behind the rear axle in ratio of wheelbase and that is 1300/970= 1.34 so hich 34% of wheelbase behind the rear axle.
Chech it yourselfes by measuring wheelbase and distance rear axle to hich of TV. Most acurate is measuring from front-side of front wheel to front side of rear wheel, middle of a wheel is not always so easy to determine.
From rear axle to hich is not as axurate to measure, but its yust for the idea.
Then if wheelbase is for instance 10 feet( foot??) , the distance rear axle to hitch is 34% of that is 3.4 feet aproximately.
EDIT: its even more easy to determine tongue-weight, by comparing the gross weights.
That is TV without trailer atached 7000 lbs.
TV with Trailer atached WDH not set 7980 lbs.
TV with Trailer atached WDH set 7900 lbs.
Tonge weight is then difference between no trailer atached and with trailer atached, and is between 900 and 980 lbs.
The difference is measuring differences, a calcibrated scale is allowed to give 1 measuring step different wich is mostly 20 lbs, and then even it can be in between the next steps, so measuring difference can rise to a small 40 lbs.
This per axle weighed can rise to 60 to 120 lbs difference in measurement. We asume your real total weights did not chanche during the measurement proces.
Another EDIT: the difference of trailer atached and not atached of 80 lbs is in theory the part that goes to the trailer tires by engaging the hich. Part of tonge weight goes not only to front tires but also to trailer tires. Read 5460-5320=140 lbs and only TV gross weights (determined by front+rear axles weight added) suggest 80 lbs, diffence is because of measuring differences of scale.
WDH transports a part of Hichweight from rear tires of TV to front tires of TV and Trailer tires, and that is yust what you noticed when weighing.
The difference rear axle between only TV and trailer with WDH disengaged, is 4640lbs-3340 lbs= 1300 lbs, and you think then that this is the tonge-weight.
But this is by leaverworking not the tonge-weight.
Example : asume hich of TV placed half of the wheelbase ( distance front axle to rear axle)behind the rear axle, then real hich weight would be 1/1.5=2/3th of that is 865 lbs . But you can measure it yourselfes acurate enaugh to estimate your real tonge-weight.
The front axle is lifted up a bit by that same leaver working.
It gives for same compare
, 3660lbs-3340 lbs= 330 lbs less.
You can also substract the front from rear is 1300 lbs - 330 lbs= 970 lbs.
And this is your tonge weight exactly , only difference can be measuring differences of scale.
From this we can also calculate howmuch your hich of TV is placed behind the rear axle in ratio of wheelbase and that is 1300/970= 1.34 so hich 34% of wheelbase behind the rear axle.
Chech it yourselfes by measuring wheelbase and distance rear axle to hich of TV. Most acurate is measuring from front-side of front wheel to front side of rear wheel, middle of a wheel is not always so easy to determine.
From rear axle to hich is not as axurate to measure, but its yust for the idea.
Then if wheelbase is for instance 10 feet( foot??) , the distance rear axle to hitch is 34% of that is 3.4 feet aproximately.
EDIT: its even more easy to determine tongue-weight, by comparing the gross weights.
That is TV without trailer atached 7000 lbs.
TV with Trailer atached WDH not set 7980 lbs.
TV with Trailer atached WDH set 7900 lbs.
Tonge weight is then difference between no trailer atached and with trailer atached, and is between 900 and 980 lbs.
The difference is measuring differences, a calcibrated scale is allowed to give 1 measuring step different wich is mostly 20 lbs, and then even it can be in between the next steps, so measuring difference can rise to a small 40 lbs.
This per axle weighed can rise to 60 to 120 lbs difference in measurement. We asume your real total weights did not chanche during the measurement proces.
Another EDIT: the difference of trailer atached and not atached of 80 lbs is in theory the part that goes to the trailer tires by engaging the hich. Part of tonge weight goes not only to front tires but also to trailer tires. Read 5460-5320=140 lbs and only TV gross weights (determined by front+rear axles weight added) suggest 80 lbs, diffence is because of measuring differences of scale.
