Air Tabs on a trailer
 

Air Tabs on a trailer

Started by bevans6, July 16, 2011, 02:50:22 PM

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bevans6

may not be bus related too much, but I thought someone might find this of interest.  I had Air Tabs on my last trailer and kind of forgot about them but I bought a new trailer a few months ago. 20' car trailer, 7.5' interior height so pretty tall. I tow it behind my pickup, sometimes with a truck camper, and I plan to tow it behind my bus. I just added Air Tabs to the trailer, and did two trips, one before, and one after installation.  http://www.airtab.com/main.html

I recently went on a run to our place in Tatamagouche, Nova Scotia, from Hamilton Ontario, towing with my pickup truck (bus engine is still on my shop floor). On that trip (2000 miles round trip), towing essentially the identical load and with similar wind conditions as the second trip I was getting 7.5 US MPG to a best of 8.5 US MPG, and ran at 90 - 95 KPH. I installed a new set of Air Tabs on the new trailer and took another 400 mile trip today. This trip I got 10.5 US MPG driving 100 to 105 KPH. It can't all be the air tabs, but that is 23% to 40% better fuel mileage at a 10% higher speed. The trailer felt a LOT lighter. You can't make a story out of one trip, but that is amazing. I saw 10% to 15% last on my last trailer, but this trailer is a foot taller and has a way bigger vacuum behind it, 15% more area, and I think I was just over-taxing my tow vehicle with it before I put the air tabs on, so I saw more result. I thought this "back to back" test was pretty interesting...

No interest in Air Tabs, just a customer. I spent $250 on the air tabs and figure I saved $50 on just one day's drive.

Brian
1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Allison MT-647
Tatamagouche, Nova Scotia