Wind deflectors pros and cons.

[KReich]

Are they a help or just a waste of money.

[muelldawg]

Truckers use them so I expect they work to some degree. Of course truckers do a lot more driving than we do which means higher efficiency is more important.

[Paulx213]

Shape of your trailer matters too. My Jay Feather is nicely curved on the front and doesn't create too much drag (relatively speaking). My neighbours is a perfect rectangle. For him it would help.

[Rustic Eagle]

I once read a study that was preformed and it stated that a TV roof top wind deflector would have to be big enough to deflect the wind around the "rear" of the TT to make a notable difference.

Bob

[DMRGMC]

I'm sure there is a thread somewhere in the forum. However just google the topic and you'll see that there are many opinions on the subject. There is one study that shows that aerodynamic shape, the height of the tv related to the tt or 5er and distance between them is important. It goes as far as saying that the deflector has to conform to the shape and be the same size as the front of the towed vehicle or it will not be effective and in fact might cause drag as a result of the air current dropping in between the 2 vehicles. You will notice that deflectors on semi's are molded to configure the front of the trailer, wrapping around with very little distance separating the 2.

[Flyrotor]

For return on investment, you will never recoup your costs with the minimal possibility of any appreciated fuel savings. Your best bet, take your foot off the accelerator... slowing down is the only sure shot at saving fuel when towing a camp trailer.

[Seann45]

They may make a small difference HOWEVER it would take a very long time go get the payback from the purchase price.. AND if you dont remove it when your not towing it will cost you fuel $$$..

[DieselX]

Originally Posted by Seann45

They may make a small difference HOWEVER it would take a very long time go get the payback from the purchase price.. AND if you dont remove it when your not towing it will cost you fuel $$$..

Exactly, I see people drive around with them without their campers, even folded down is killing your mpg. Plus you have to store it somewhere when not in use.

[cekkk]

I've read they really only pay for the large fleet operators that can benefit from a couple tenths of an MPG.