Northern Territory, 1 January 2007, No more (//)

**Full Noise** · 05-02-2007, 12:01 PM

Quote:

Originally Posted by TE50 027

I lived in the NT for a few years and regularly made the Darwin-Adelaide run. To overtake roadtrains (which have 4 trailers and are up to 60m long)

Four trailers? Unless the vehicle was an A - B triple configuration. Generally they use three trailer combinations. 60 metres would be pushing the friendship. The maximum allowable is 53.5. It’s all in this document.

http://www.ipe.nt.gov.au/whatwedo/mv...elines-oov.pdf

Quote:

Originally Posted by TE50 027

I Once saw a Barina overtake one of them. She was doing about 125-130kmh, truck about 100kmh. I decided to hang back once I saw how much the last trailer was starting to sway over the road due to the Barina upsetting airflow down the side of the truck. All up took her almost 15 seconds to overtake. IMO, it's a damn sight safer getting past the trucks quicker.

I don’t think that the Barina could take any credit for upsetting the airflow of a 115 tonne road train. This would be like a passenger upsetting the downward force of a 747 by passing wind. I dare say that this was caused by the driver trying to give the Barina a little more room and having to deal with the whip effect caused by a sudden movement of the steering wheel.