Wind deflectors and Aero mods for fuel economy.
Posted 25 June 2021 - 11:41 PM
2015 FWC Hawk Flatbed
Posted 26 June 2021 - 05:19 AM
I'm contemplating whether I want to move my Yakima fairing to the new RAM pickup. I've only done 90 miles both ways to Reno with the camper/truck combo. It rides nicely and there's plenty of power when I want it.
So far, I don't notice much noise, but it's a much better insulated truck than my 15 year old Tundra. Most importantly, these newer, taller cabs close the gap between the Hawk and the truck.
The first gen Tundra had cavitation issues around 50 mpg until I mounted a Yakima fairing.
Edited by Lighthawk, 26 June 2021 - 05:30 AM.
06 Tundra AC TRD 4x4, 08 Hawk, Ride-Rite bags, Helweg sway bar,18" BFG AT's
2021 RAM 3500 Crew 4x4, 6.4 hemi/8 speed trans with 4.10 gears, Timber Grove bags, Falken Wildpeak 35" tires
2008 FWC Hawk with victron DC-DC charger, 130w solar, MPPT controler
Posted 26 June 2021 - 05:31 AM
I also use the Yakima deflector, it works great. As mentioned no fuel savings, but cuts down wind noise and deflects bugs.
Edited by BrianG, 26 June 2021 - 05:36 AM.
2018 Ram 3500 Mega Cab 4x4 Diesel, 2015 Hawk Silver Spur Exterior, Front Dinette
Posted 01 July 2021 - 04:37 PM
My Deflector Odyssey
I have an ATC Panther on my Tundra which has quite a bit of space between the cab and camper overhang. I experienced quite a bit of wind buffeting at highway speeds from the wind hitting the flat front wall of the camper behind the truck cab. Many bugs gave up their lives in this area as well. Why not get a wind deflector...
My online search turned up the Aeroplus Wind Deflector which was marketed by PurplelineUSA.
It's looked to be pretty heavy duty being about 1/4" thick plastic. It is large enough to cover the cab top gap and protect the front of the camper over hang.
I rounded up a Thule rack to fit the Tundra and mounted the Aeroplus to it.
Note the two indentations on the fairing. These are the super heavy duty mounting points.
First trip, we went to Moab from Denver and the wind noise was greatly improved. However, when in a cross wind or in a semi truck back wash, the ends of the deflector would flex and hit against the rack.
So, I fabricated some large bump stops on the rack (made from rubber hockey pucks) to eliminate the flex. This quieted down the noise and worked for a couple of weeks.
While heading south on I25 to Colorado Springs I experienced some huge microbursts from the side and the deflector started rattling whenever I drove over 65 mph. When I got home I found that the Aeroplus had cracked at both mounting points.
I wrote an email to the US distributor, purplelineusa, including my experience and photos but got no response...
My conclusion is that two mounting points, regardless of how strong the deflector is, is not enough.
I'm back to the old Yakima fairing modified to fit the Thule bars.
It's a little small as it was left over from a prior vehicle. But it does cut down on the wind noise although, I'm back to cleaning bugs off of the front of the overhang.
2000 Tundra AC- 2000 FWC Ranger
2017 Tundra DC - 2017 ATC Panther
Posted 01 July 2021 - 10:33 PM
I had a fairing on my previous camper, made the brackets myself out of 1" steel tubing based on other's designs here. It was attached to the camper, not the truck. Worked well in terms of reducing but splatter and wind noise. No MPG diff that I could see.
2015 Silverado 3500 crew cab 8' bed Diesel
2012 ATC Puma Shell build - https://www.wanderth...012-puma-build/
Power considerations thread - https://www.wanderth...e-power-scotty/
Building out an electrical system - So, you want to setup a good electrical system in your camper? - Electrical, Charging, Solar, Batteries and Generators - Wander the West
Posted 17 January 2022 - 03:44 AM
I saw a 3rd gen Tundra rig in Baja this winter that had mounted traction boards on top of the cab at an angle to act as a deflector. I thought it was ingenious! and am curious how they were affixed. Unfortunately he was travelling the opposite direction, and I didn't have time to chase him town!
I am interested in any thoughts or ideas on how to achieve this.
'15 Tundra Double cab with '09 Hawk slide couch
Posted 23 January 2022 - 04:18 PM
Wouldn't be very hard to do. A couple of long square steel tubes bent at an angle. You would have to bolt them through the bottom of the bed area. Or, mount them to a Yakima/Thule rack with some kind of bracket. Kills two birds with one stone, good idea.
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