Wind noise E-450

[clotus]

Rig - 2017 Winnebago (not so) Minnie Winnie 31K on 2016 E-450 chassis

I have had my above rig for over two years now and love it, but man there sure is a lot of wind noise up in the cab. Has anyone figured out how to quiet it down?

Thanks!

[bobndot]

clotus wrote:
Great info. Add this to the list if things to do. Thanks!

Looking at a pic of a 31K. it appears to me as if you have enough space from that rear arm to the rear edge to install the tabs.

[clotus]

Great info. Add this to the list if things to do. Thanks!

[pianotuna]

wolfe10 wrote:

pianotuna wrote:
Hi,

The noise level dropped greatly after I added Air Tabs. They did little for the mileage. Handling was improved. Before air tabs I had to shout--after air tabs ordinary conversation levels were possible.

Familiar with air tabs at the rear of a coach.

Can you describe exactly where you placed them up front?

I did not put them up front. I did put them on the rear edge of the air conditioner shroud and the rain hood for the fridge chimney. The rest were installed as the maker recommends--at the rear of the RV.

So far, only one has flown away--and that was from the fridge chimney.

[bobndot]

When adding AT's to the rear of any rv, you have to take into consideration your awning arms. There is no point adding AT's between a vertical arm located and the rear of a coach because the arm is blocking airflow to the tabs. It might be useful if they were installed ahead of the arm. Im really not sure and when I called AT to ask, they really were not sure either but suggested in front of the arm.

That's a good pic Ron, thank you.

[ronfisherman]

Here is a picture of airtabs on my MH.

[bobndot]

wolfe10 and clotus ,
"Can you describe exactly where you placed them up front? "

this is a TC thread, the 'bjbear' post shows the best location pic. scroll down 3/4 thru it . When I try these AT's , I would place them on my class C in the same spot as the TC cabover.

https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27017146/print/true.cfm


just wanted to add 'sleepys' pics and build process of his cabover tabs. Chet's Airfoil
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/17575645.cfm

[bobndot]

clotus wrote:
Can you send a pic of the air tabs, where you got them, and how hard the install was. I am very interested!

I would think many others are very interested too. Please do a follow up report .

[IAMICHABOD]

wolfe10 wrote:

pianotuna wrote:
Hi,

The noise level dropped greatly after I added Air Tabs. They did little for the mileage. Handling was improved. Before air tabs I had to shout--after air tabs ordinary conversation levels were possible.

Familiar with air tabs at the rear of a coach.

Can you describe exactly where you placed them up front?

A picture would be even nicer,I have them on the rear,and a lot left over.

[wolfe10]

pianotuna wrote:
Hi,

The noise level dropped greatly after I added Air Tabs. They did little for the mileage. Handling was improved. Before air tabs I had to shout--after air tabs ordinary conversation levels were possible.

Familiar with air tabs at the rear of a coach.

Can you describe exactly where you placed them up front?

[ronfisherman]

I put Airtabs on my MH. Worked very well at rear and under cab over.
Putting them on the cab over took away a lot of noise from trapped between cab over and chassis cab.
The ones I added to rear sides helped stability when getting passed on the highway.
Did not see any fuel economy savings.
Here is a old thread on the subject.

[clotus]

Can you send a pic of the air tabs, where you got them, and how hard the install was. I am very interested!

[pianotuna]

Hi,

The noise level dropped greatly after I added Air Tabs. They did little for the mileage. Handling was improved. Before air tabs I had to shout--after air tabs ordinary conversation levels were possible.

[Home_Skillet]

Remember. You're pushing a sheet of plywood, vertically, down the road. No way around wind noise.