Air Flow Deflectors
We just had our TT out for the first time in a very long time, and are looking forward to getting it out more frequently here in 2021, with a least 1 long trip planned for this summer, but hoping to g...
Forum Discussion
There is a BIG reason the big rigs have these same air deflectors....
The issues, looking at the red truck above, with most is that the deflector is too far in front of the trailer. Having the minimum gap between is critical. Though the red truck still has benefit with such a large gap, a smaller gap would produce better results.
WIth gaps between the truck and trailer you experience the full front of the trailer hitting oncoming air. The closer the trailer can be to the truck the better.
The closer the air shield is to the trailer the better.
Ideally for the red truck the shield should be hanging over the back of the truck and should be taller, closer to matching the height of the trailer.
The problem for that trailer is that it is bricked shaped. Manufacturers do not consider aerodynamics when building trailers, only how the interior will look when the wife is shopping for one.
More air hits the two side corners of the trailer than the top roof corner. The sides need more attention than the roof. A trailer with nice rounded front walls will be more aero than with rounded roof.
Consider making aerodynamic improvements to the front of the trailer rather than to the vehicle.
The back of the trailer is a very good place to increase aerodynamics, but will be more difficult.
The issues, looking at the red truck above, with most is that the deflector is too far in front of the trailer. Having the minimum gap between is critical. Though the red truck still has benefit with such a large gap, a smaller gap would produce better results.
WIth gaps between the truck and trailer you experience the full front of the trailer hitting oncoming air. The closer the trailer can be to the truck the better.
The closer the air shield is to the trailer the better.
Ideally for the red truck the shield should be hanging over the back of the truck and should be taller, closer to matching the height of the trailer.
The problem for that trailer is that it is bricked shaped. Manufacturers do not consider aerodynamics when building trailers, only how the interior will look when the wife is shopping for one.
More air hits the two side corners of the trailer than the top roof corner. The sides need more attention than the roof. A trailer with nice rounded front walls will be more aero than with rounded roof.
Consider making aerodynamic improvements to the front of the trailer rather than to the vehicle.
The back of the trailer is a very good place to increase aerodynamics, but will be more difficult.
