I see this draw bar unit most nights on the motor way the unit is the tear drop shape body but so is the draw bar trailer!
To my thinking the draw bar would be better as a normal body and not that of a tear drop as wouldnt the unit be putting down force on the draw bar instead of air flying over it? I might be peein in the wind but to my thinking im right and this unit is wrong.
Any thoughts or answers
Is a tear drop body one of those ugly modernist trailers with a curved roofline? I get they’re more aerodynamic but they look pretty un truck like. That’s not a very good argument against them I know 
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I’m trying to picture what you mean. Is it a rigid truck body behind the cab that has the slope and a drag trailer behind that also has a sloped front? You’d think the pup trailer would just be standard to continue the profile and lessen the form drag created by another drop to the start of the leading edge of the trailer. The least drag would be created by continueing the profile.
Yes mate rigid pulling the pup trailer. Only way to describe is think to boiled eggs with wheels and one pulling the Other
The correct set up on that is half tear on primemover and the drop off tear on the drag so it looks like a full tear drop trailer . Think next have some
Freight Dog:
one of those ugly modernist trailers with a curved roofline?
Yes indeed it looks ugly, I thought it was just me…
nick2008:
Think next have some
DHL have them on the NHS contract…
Right, geek t&ss@r hats on, but its my rational as to why you are correct:-
Going off what you say about this truck, there would be a large drop between the trailing edge of the lead “trailer” or truck body and the start of the slope of the pup trailer. The airflow over the front of the lead trailer flows in a smooth pattern and actually sticks to the surface of the truck. When It encounters a gap like that created between the forward bit of the lorry and the trailer, ideally it wants to continue on it’s path. The air flows nicely over moderately curved profiles like the roofline. But if it encounters a drop to the leading edge of the next trailer the airflow can’t maintain it’s adherence to the surface. The velocity of it slows down, the pressure rises and you get parasite drag. This stuff drinks fuel like its going out of fashion.
So like you say a normal trailer would be much better behind the front egg!
Not sure but there could be a lip that flips the air flow so it won’t catch the gap plus I think they’re a close couple type that on turning pushes the drag away from the PM so they don’t rub
could it be demounts on both that the op has seen?
nick2008:
The correct set up on that is half tear on primemover and the drop off tear on the drag so it looks like a full tear drop trailer . Think next have some
Yes like a full tear drop cut in half 1 stuck on a 6 wheeler the other half been pulled but this thing just looks daft as its 2 proper tear drops
And it is next saw 1 on way down
gggary:
could it be demounts on both that the op has seen?
Ay i never gave that combo a thought good 1 batman
Anyway 3 minutes and im ndc bound for home ill see if i catch him today although im unloaded early
Not the best picture of one (to be honest, it looks a lot better in this photo than it does in real life, by christ they are bloody ugly, just like the DHL artic trailers)
kindle530:
Not the best picture of one (to be honest, it looks a lot better in this photo than it does in real life, by christ they are bloody ugly, just like the DHL artic trailers)0
That unit and draw bar is fine although fugly it works the 1 i saw was the full tear drop on each unit and draw
gggary:
could it be demounts on both that the op has seen?
+1
vysie:
I see this draw bar unit most nights on the motor way the unit is the tear drop shape body but so is the draw bar trailer!
To my thinking the draw bar would be better as a normal body and not that of a tear drop as wouldnt the unit be putting down force on the draw bar instead of air flying over it? I might be peein in the wind but to my thinking im right and this unit is wrong.Any thoughts or answers
probably Spectrum for Arcadia
Leeds to Milton Keynes trunk?
kindle530:
Not the best picture of one (to be honest, it looks a lot better in this photo than it does in real life, by christ they are bloody ugly, just like the DHL artic trailers)0
Where does that work from? What kinda work do they do?
vysie:
kindle530:
Not the best picture of one (to be honest, it looks a lot better in this photo than it does in real life, by christ they are bloody ugly, just like the DHL artic trailers)0
That unit and draw bar is fine although fugly it works the 1 i saw was the full tear drop on each unit and draw
its half teardrop at the front and half on the drag, although you cant really see it that well, it was the only picture i could find on t’web.
G6Bob:
kindle530:
Not the best picture of one (to be honest, it looks a lot better in this photo than it does in real life, by christ they are bloody ugly, just like the DHL artic trailers)0
Where does that work from? What kinda work do they do?
ER NHS …so at a guess it’ll be supplies to the NHS that will cover ALL NHS services from bed pans to beds and equipment basicly anything that a NHS department needs .
They have a place down Bridgewater ( use to that was a few years back mind )
Clunk:
gggary:
could it be demounts on both that the op has seen?+1
If its the same as the one I often see, they are demounts, trunked overnight on draw bars and then used on rigids during the day.
with regards to the NHS set up, im 99.9% sure they’re not demounts.
Ref NHS, can confirm they are not demountables. The 61-reg models are the teardrops. They carry standard roll cages and some palletised goods. Lightweight packages usually thrown on top. The drawbars have accumulated mega distance. They do the longer distance runs and are double-shifted.