Is it advised to always swing wide with doubles

Discussion in 'LTL and Local Delivery Trucking Forum' started by Brandonva804, May 30, 2021.

  1. Brandonva804

    Brandonva804 Light Load Member

    Nov 15, 2019
    My trainer is talking about you don’t have to swing wide with doubles as much like you do a 53ft. But I’m so use to taking as much space as possible to make turns of need be. I feel like he’s messing with the way I do things.

    So is it still alright to swing wide as much as possible with doubles? I could take shorter wide turns but if I don’t make it I would be screwed because of no room to back up.

    Also can dolly damage tractor if you turn into a 90 degree angle with it?
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  3. buddyd157

    buddyd157 Road Train Member

    May 25, 2017
    under a shade tree
    i never had to. that last pup will follow the lead with no problem.

    but it was common for me, to forget i was pulling them, and yeah, i'd swing wider at times.
    NavigatorWife Thanks this.
  4. Air Cooled

    Air Cooled Road Train Member

    Jul 17, 2011
    You can take it a little wider if you want. Nowhere near as wide as a 53. You’d be surprised how well and close they track. Don’t worry too much, you’ll be fine.
    NavigatorWife and John E. Thank this.
  5. mud23609

    mud23609 Medium Load Member

    Mar 9, 2015
    Pups track a little better than a 53. Now if your in South Dakota pulling twin 45’s or North Dakota where it’s common to drag a 42 behind a 53 your gonna need a bit more room but probably not as much as you think you would.

    As far as the dolly damaging the tractor. It’s not a concern under normal driving conditions. However if you make too tight of a u turn you can make the pups kiss if your not careful.
    Last edited: May 30, 2021
    MACK E-6, NavigatorWife and baha Thank this.
  6. jmz

    jmz Heavy Load Member

    Mar 9, 2018
    He’s right, you don’t need nearly as much space, but you’ll figure that out as you get used to doubles. Nothing wrong with taking extra room if it makes you more comfortable.

    As for hitting the dolly with the tractor, that isn’t even possible unless you’re going in reverse and literally not looking. Unless you meant hitting it with the lead trailer? In that case, you risk pinching an air line. I make tight u-turns all the time and only had to get a line replaced once (I was backing my dolly with my lead in the dark).
    Last edited: May 30, 2021
    Texas_hwy_287 and MACK E-6 Thank this.
  7. jamespmack

    jamespmack Road Train Member

    Mar 25, 2014
    They track better than a single 53. As said by others.
    MACK E-6 Thanks this.
  8. FFL Trucker

    FFL Trucker Light Load Member

    Jul 13, 2011
    That depends on the combination of vehicle that you're driving, if it's hooked with a pintle hitch and there's a draw bar then you have very little movement before you crash into something.

    The twin dump trucks are the only ones I've seen that have a wide range of movement with that combination so they can dump with their straight truck.
  9. kidz bop

    kidz bop Light Load Member

    Oct 5, 2017
    my rule of thumb was if in doubt go wide as possible.
    Last edited: May 31, 2021
    scott180 Thanks this.
  10. scott180

    scott180 Medium Load Member

    Dec 10, 2012
    Tooele, UT
    If you go back and forth from a long trailer to doubles or even truck with dolly and trailer then just always swing wide. If you exclusively drive doubles than you don't need to worry.

    Delivering gasoline to a particular station I was always in a tanker truck with a trailer. I did it one night in a semi with a long trailer. Wasn't thinking about how they track different and was half way into the station when I slammed on my breaks hard. I don't know what dawned on me but when I looked back I was about a foot from opening up my tank on a fire hydrant. Since then I always drove like I had a long trailer.
  11. Powder Joints

    Powder Joints Subjective Prognosticator

    Sep 25, 2007
    Rosamond, SoCal
    Better to have to much room, as to little. The only real risk beside the air and electrical (you have to look at each set up to determine how tight is to tight ) is it is possible to turn over your rear trailer if you turn it to tight and do anything abrupt.
    jmz and scott180 Thank this.
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