Wondering out loud

johnboytoo · 05-09-2014, 05:54 PM

Have seen motorhomes with these and did some research a while back, but never pulled the trigger...

http://www.airtab.com/

Thinking with LOT's of towing they might be beneficial for some...

interesting topic to me since I studied boundary layer theorem as part of my Chem Engr major

**Dave&Ginny** · 05-09-2014, 08:57 PM

They might work but it depends on the investment and how long it would take to recoup. The problem I see on my rig, is that there's a lot of space between the cab of my truck and the front of my 5er for air to collect

Tobys Home · 05-09-2014, 09:14 PM

Dave I see it now…"Man Julian's hand while waxing his RV." Thank heavens for that famous pain killer Nurse JACK.

rcflame · 05-10-2014, 12:43 AM

Using the chart in there web site and there figures, If you're getting 10 mpg now and saved their 4% saving, in 75000 mi. you would save 300 gal of fuel which at todays prices would be $1000-$1200. I don't know what they cost, but it looks to me the payback would be to long. I think they are made for the long distance hauler whatever he is driving.

atom ant · 05-10-2014, 02:22 AM

If there was any credibility to them, I would think they would be a lot more common, as they have been out for over a decade. I think I have seen 2 rigs with them, and one was a 5th.