Roof splitter...better front end aerodynamics
Big beliver here of DIY aerodynamics. The "pocket" in-between your TRUCK cab and camper cab-over is a huge source of drag and wind noise. Its like towing a parachute. A roof "splitter" will low...
Forum Discussion
bcbigfoot wrote:Reddog1 wrote:
I'm thinking you will rub the paint off the cab of your truck, and/or the underside of your TC cab over.
This concept has been around at least since the 70's. A very common TC add on. Back then, a cushion was inserted between the cab and cab over, then aired up. As I recall, 6 psi. Some were simply made of foam. Put the foam on the roof, then lower the TC. I have had both types.
These devices usually wore the paint off the cab of the truck. Someone then come up with a plastic film you put on the roof to protect the paint. That only left the paint on the underside of the TC cab over to rub off.
Personally, I never found enough benefit to continue using them. Considering you seldom, if ever see them any longer suggest a lot of people see any real benifit.
Wayne
I feel discussion of aerodynamics pertaining to truck campers is long overdue, hopefully some really good ideas can come to light.
Actually they have been ongoing on RV.NET for years, so I really do not understand your thinking these discussions were " long overdue".
Probably once a year, someone discovers the airtabs. The discussion starts all over again how they are the greatest thing to ever hit the RVs. Some people spend lots of money based on the hype. Very few post their disappointment in the money spent and lack of performance on the airfoils, but some do.
bcbigfoot wrote:
The 70's was a different world, I recall 18 cent per gal diesel in California, most trucks were undersized for their loads, didn't have enough hp to get over 55 mph and were dangerous if you did. With new technology there is many things that can be done today that were just pipe dreams in the 70's.
I can't see how this possibly negates my experience. You can trade the cab/TC fillers with tabs or something else. But I question any serious change in the aerodynamics.
My post was intended to be informative, not negative. Some wise person supposedly said; "Those that do not study history, are doomed to repeat it."
Wayne
