Fulcrum point
Ok, lets just say for chits and giggles I weigh..aaa..lets say 260. With the camper suported on the same structure as if it was in the bed of the truck not secured ,if there were 260lbs in the master ...
Forum Discussion
The below only applies to campers with 4 jacks, which should be either steadied or lowered as low as possible. A 3 jack camper should never be used off the truck unless the front end of the camper is properly supported.
For a static load (not moving) the math is extremely simple.
A = (COG distance from front pivot point) x (weight of camper)
B = (COG distance from front pivot point for people in cabover) x (weight of people)
If B > A, then it will tip.
Extreme example:
A = 1000 pounds x 24 inches = 24,000 inch pounds
B = 260 pounds x 96 inches = 20,800 inch pounds
A > B so the camper will not tip. Though since the numbers are close, you had better be very careful moving around.
Note this was with a very light camper, even a Palomino weighs more than this.
Also, the person had all of their weight at the very front of an extended cab-over truck when in reality, it would be much closer to the middle of their body which would be slightly forward of the middle of the cabover.
So for a more realistic example, take a Lance 815 (lightest/shortest older Lance) and throw two people in the cab-over:
A = 2400 pounds x 28 inches = 67,200 inch pounds
B = (250 + 150) pounds x 42 inches = 26,800 inch pounds
Definitely not going to tip over, even when moving around.
For a static load (not moving) the math is extremely simple.
A = (COG distance from front pivot point) x (weight of camper)
B = (COG distance from front pivot point for people in cabover) x (weight of people)
If B > A, then it will tip.
Extreme example:
A = 1000 pounds x 24 inches = 24,000 inch pounds
B = 260 pounds x 96 inches = 20,800 inch pounds
A > B so the camper will not tip. Though since the numbers are close, you had better be very careful moving around.
Note this was with a very light camper, even a Palomino weighs more than this.
Also, the person had all of their weight at the very front of an extended cab-over truck when in reality, it would be much closer to the middle of their body which would be slightly forward of the middle of the cabover.
So for a more realistic example, take a Lance 815 (lightest/shortest older Lance) and throw two people in the cab-over:
A = 2400 pounds x 28 inches = 67,200 inch pounds
B = (250 + 150) pounds x 42 inches = 26,800 inch pounds
Definitely not going to tip over, even when moving around.
