Purpose of trucks with the big extended trailer?

[Jmmsbnd007]

What's the point of those big open-topped trucks with a smaller trailer at the back and a long pole connecting it with a red flag on top? Why not just put 2 close together and disconnect them?

 

[vi edit]

Better manuverability?

 

[Colt45]

dont think ive ever seen that...

 

[olds]

Originally posted by: Jmmsbnd007
What's the point of those big open-topped trucks with a smaller trailer at the back and a long pole connecting it with a red flag on top? Why not just put 2 close together and disconnect them?

Pics?

 

[Jmmsbnd007]

Originally posted by: oldsmoboat

Originally posted by: Jmmsbnd007
What's the point of those big open-topped trucks with a smaller trailer at the back and a long pole connecting it with a red flag on top? Why not just put 2 close together and disconnect them?

Pics?

They're everywhere... it's like a normal dumptruck, then you have a pole hanging off the end about 30 or so feet long (shorter/longer?) leading to another dumping trailer, with a red flag in the middle so you can see the pole better.

 

[Scarpozzi]

Did you see what they were hauling?

I've seen a couple of rigs used for hauling wood chips and such...but those were all tree cutters that used those.

 

[Jmmsbnd007]

Originally posted by: Scarpozzi
Did you see what they were hauling?

I've seen a couple of rigs used for hauling wood chips and such...but those were all tree cutters that used those.

No, the sidewalls of the dumptruck container is too high.

 

[Spac3d]

Originally posted by: Jmmsbnd007

Originally posted by: oldsmoboat

Originally posted by: Jmmsbnd007
What's the point of those big open-topped trucks with a smaller trailer at the back and a long pole connecting it with a red flag on top? Why not just put 2 close together and disconnect them?

Pics?

They're everywhere... it's like a normal dumptruck, then you have a pole hanging off the end about 30 or so feet long (shorter/longer?) leading to another dumping trailer, with a red flag in the middle so you can see the pole better.

I have never heard or seen such a thing.

Spac3d

 

[Spac3d]

btw, where did you see these things? What city? Was it in a large construction area? Industrial area?

Spac3d

 

[Jmmsbnd007]

Originally posted by: Spac3d
btw, where did you see these things? What city? Was it in a large construction area? Industrial area?

Spac3d

Omaha, Nebraska.
Ok, picture a normal truck front, and in the back a regular sized rectangular open-topped container thingy. It looks like a dump truck, maybe it is, maybe it isn't. Now, imagine a little trailer hitch at the back. Hitch on a 30 foot pole, put a red flag in the middle of the pole to warn drivers not to run into it. On the other end of the pole attach the same rectangular open-topped container thingy with wheels at the back to the free end of the pole.

 

[PsychoAndy]

I do believe you are refferring to a "lowboy trailer"

-PAB

 

[Tominator]

There is a rather complicated formula that sets maximum weight per axle and governs the distance between the axles or groups of axles. It's called 'The Bridge Law.'

The long boom in between provides the spacing between the axles to be in compliance with The Bridge Law. These rigs haul very heavy bulk commodities such as sand and gravel.

The law can vary from state to state. That is why you see some types of rigs in one state yet never in another.

 

[olds]

I have never seen the flag. What you are referring to is a "pup trailer".
Found one.

 

[vi edit]

ooops, n/m

 

[Jmmsbnd007]

Originally posted by: oldsmoboat
I have never seen the flag. What you are referring to is a "pup trailer".
Found one.

BINGO. It may be a little smaller, but that's pretty much it.

 

[brtspears2]

Wow, must be a pain to pass that on the highway. And I thought going though Oregon and their triple trailers was a challenge.

 

[deerslayer]

Never seen one before.

I bet they're a PITA to drive.

 

[JeffreyLebowski]

you should check out some of those log trucks. those trailers are longer than john holms.

 

[GeekDrew]

Originally posted by: LyNx01
I bet they're a PITA to drive.

Must have hit that nail on the head. I haven't taken on the challenge of one of those yet - but I have driven a tractor, with four grain wagons attached to it (talking farm equipment here). Virtually impossible to back up. I think I'll make a thread about farm driving. Maybe.

 

[loup garou]

Originally posted by: oldsmoboat
I have never seen the flag. What you are referring to is a "pup trailer".
Found one.

Wow, I've never seen one of those in my life!

 

[MedicBob]

Originally posted by: Tominator
There is a rather complicated formula that sets maximum weight per axle and governs the distance between the axles or groups of axles. It's called 'The Bridge Law.'

The long boom in between provides the spacing between the axles to be in compliance with The Bridge Law. These rigs haul very heavy bulk commodities such as sand and gravel.

The law can vary from state to state. That is why you see some types of rigs in one state yet never in another.

Exactly why they have pups on them. Plus doubling weight capacity when set up right.

 

[Spac3d]

Originally posted by: werk

Originally posted by: oldsmoboat
I have never seen the flag. What you are referring to is a "pup trailer".
Found one.

Wow, I've never seen one of those in my life!

 

[Batti]

I believe those trailers are designed to distribute load over roads and bridges. By putting the trailer way back there, they are able to use more roads, since the load isn't all in one place.

 

[olds]

Originally posted by: Batti
I believe those trailers are designed to distribute load over roads and bridges. By putting the trailer way back there, they are able to use more roads, since the load isn't all in one place.

That is correct as Tominator pointed out.