Originally Posted by 777 Driver
From this website: Airtab: Aerodynamic fuel savers for truck, tractor, trailer, bus, RV
Airtabs™ are patented after-market aerodynamic drag reduction add-on devices that provide users the following benefits;
FUEL SAVINGS: 2-5% range
SAFETY: Vehicle stability improvement, reduced lane excursions, roll over risk and improved handling in gusty wind conditions; Improved rear view mirror visibility and safer lane changes in rain or snow.
LOW COST: Rapid ROI in commercial use.
MAINTENANCE: No maintenance or special training required
RAPID INSTALL: Minimum vehicle downtime and no special equipment needed.
OPERATIONAL IMPACT: None
I've NOT used this product. I have seen lots of discussions suggesting that they don't work. I have seen lots of discussions suggesting that they're great.
Good luck in your quest for better fuel efficiency.
I've watched mist and it swirling in the aerodynamic bubble behind trailers, it does change the pattern from a similar trailer without them. I'd like to see actual wind tunnel test results to see if that change actually reduces drag.