The side skirts you see hanging from 53' trailers on the freeway are a cheap example.
Some of these hardware improvements will pay for themselves quite quickly if the gain is 0.5 mpg over many hundreds of thousands of km, at normal diesel prices in the US and Canada.
Trucking is such a thin margin business that anything which gives a competitive edge in operational costs and $ per km will be adopted quickly.
http://www.stemco.com/product/trailertail/
http://www.nytimes.com/2012/12/30/automobiles/stretching-tru...
The side skirts you see hanging from 53' trailers on the freeway are a cheap example.
Some of these hardware improvements will pay for themselves quite quickly if the gain is 0.5 mpg over many hundreds of thousands of km, at normal diesel prices in the US and Canada.
Trucking is such a thin margin business that anything which gives a competitive edge in operational costs and $ per km will be adopted quickly.