How Hard Is driving Doubles?? (Tankers)

That's no lie or myth! I saw a tanker yanker try to make a sudden stop on a static scale and that surge litterly pushed him clear off that scale. He also damaged the scale too.

 

Because that is not a tractor with a 5th wheel pulling a trailer. It is a straight truck with what I think is a pintle hook tow trailer. LOOK at that photo VERY closely!

 

This is what's normally referred to in the petroleum industry as a transport. Very easy to drive with very very little surge. There are 5 compartments with the largest being 2500-3000 gallons. There are 2 on the truck 3 on the trailer and they are also baffled. Normally close to 11,000 gallons total capacity with 10,000 to 10,500 gallos of all gas or 9500ish gallons of all diesel or a combination of the 2 up to 103-105,500 pounds gross depending on tare weight and wheel base. The trailer tracks really really close to the truck track as the trailer is stinger steared by the end of the frame. Meaning that the hitch is 5-10' behind the pivit point of the drivers so it tends to pull the front of the pup in the opposite direction of the turn. They can be backed up fairly well by a driver thats had YEARS of experience. The longer the tounge on the pup the easier they are to back. I never got that good at backing them.




This is most likely what you'll find in the oil fields. A semi with a pup. This happens to be a 7500/3500 gallon setup for hauling hot asphalt oil. 68' of trailers and Im 93' bumper to bumper off tracks about as much or a little more then my 53' singles and I can only back them up about 1/2 a truck length before that pup says Im doing what ever I want so Im VERY VERY careful where I go with that set. Lol

 

I suspect soon you will be asked about that term! Since 2010 in and out of this forum that is the first time I have even seen it used in TTR.

 

Its kind of a loggers term for the truck up here in the northwest/west coast. It looks just like it sounds. There is a "stinger" usually 6"x6" square tube that extends past the end of the frame 5-10' that has a pentle hook on it that the draw bar of the trailer hooks to. Usually long loggers or pole trucks have them. They are removable so that the truck bunk can be switched out for something else. IE 5th wheel, dump box, ect. I did word it a little wrong as Im a little tired, but the transport setup pictured is commonly refered to as frame steered. So instead of the frame ending like a normal tractor the frame extends back the 5-10' past the drivers and has the pental hook attched to it. Here is a link to the setup built for these transport trucks by Beall. It should give a little bit better picture of how the frame extends past the drivers. https://www.wabashnational.com/docs...-nw-petroleum-transport.pdf?sfvrsn=1048acf5_8

 

There is a french company with a several production plants in the upstate of SC. I have seen those trucks for years. I would know that company if I saw a photo much like that commenter just did. This comes from experience.

 

PNW is about the only place that runs 105,500 gross on an 8 axle setup like that. Cali and I do believe the midwest runs 80,000 gross on a 5 axle setup 3 axle truck 2 axle pup, not sure what the east/south east runs. Also you posted a picture of a Superior Tanklines tanker in front of the bridge that I do believe cross's the Columbia River in Longview Wa.

 

Your OK with me. I knew what the word means. I have used stingers before. I just never seen it used in here before.