MAXIMUM AXEPTABLE LATERAL INCLINE

Discussion in 'Ask An Owner Operator' started by albatros1952, Aug 14, 2026.

  1. albatros1952

    albatros1952 Bobtail Member

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    Dec 13, 2025
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    Hi,

    This is a road with a 15% up slope, the leveled parking area is 90 degrees from it.
    Can the tractor with a 40' container do that backtrack parking maneuver safely?

    What is your maximum lateral incline acceptable value?

    What a general rule of thumb as far as the required maneuver radius distance for a 60' truck and container length to perform a 90 degree turn going backwards?

    Thanks
     
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  3. Trucker61016

    Trucker61016 Road Train Member

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    What is Axetable?? Geeze
     
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  4. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    It's not a an Axetable, it's a Ptable, but you're using it with an axe.

    Golly gee, reading comprehension around here..

    I understood the question completely. OP, 8% is the answer. Good luck
     
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  5. TurkeyCreekJackJohnson

    TurkeyCreekJackJohnson Medium Load Member

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    South Western US
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    Pictures or it didn't happen. That's roughly 3 times the slope of most mountain highway downgrades. I'd be surprised if the tractor will be geared low enough. Weights also weren't provided either. Lots of seat of the pants math to do.
     
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  6. Magoo1968

    Magoo1968 Road Train Member

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    St Malo mb
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    15% in reverse You will need to lock differentials or you’ll just spin especially if road is dirty or gravel.. I deliver into mountain jobsites and without 4 way locked up I tend to spin the drives..
     
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  7. abyliks

    abyliks Road Train Member

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    never measured them, but I’ve had plenty of hills in landfills where it was fully locked, first gear and the dozer will pull you the rest of the way when you stop
     
  8. W923

    W923 Road Train Member

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    In my opinion 15% is only going to work on dry concrete and since everything has 2xx gears now good luck to the clutch and driveline
     
  9. snowwy

    snowwy Road Train Member

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    I don't know what an acceptable angle is but I can definitely say if you're at an angle. The trailer will go to the downhill side.

    I had to fight that situation last week. Had to go on flatland. Back up and start over.
     
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  10. SmallPackage

    SmallPackage Road Train Member

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    Marion Texas
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    The height of the fifthwheel plate from the frame rails and the forward position make a difference too. If Plate is lo pro and too close to top of rail and tires it will cause more twist and bottom out issues. Need to have fifth wheel slid all the way back so it doesnt let trailer bottom out on the tail ends of the rails or nose down into the cat walk or quarter fenders for the best results
     
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