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
Sleepys airfoil is listed in the TCU under exterior section. I would think as far as results probably as varied as truck & camper combinations.
I know on ours-std cab with long nose camper the air passing over truck roof is being compressed like a turbine. It would briefly be entertaining to see real numbers on what’s occurring.
The buffeting on ours was horrendous- couldn’t open a window-make your ears hurt. Shortly after we got the camper I replaced truck fixed window with a slider. First trip with it we had bugs being splattered on the INSIDE of windshield. But it did get rid of the buffeting. I made a screen for the rear slider, we usually have it open bout 1/8-1/4. No buffeting, even opening the side windows. I attribute to the air passing over the cab, forced down the back between cab and bed. Force was air enough to pull air out the pressure flap vents sort of venturi, creating a vacuum in cab. Just a guess who knows..
If I wasn’t so lazy Id copy Sleepys-I don’t need the anti-buffeting but minimizing the smeared bug juice would be nice. Unlike front of nose where bugs get stuck and easily washed off later, they don’t on front wall off camper, just leave tracers, 'evidence' of their passing.
I would think that not having that air forced over cab would have to help, at least with buffeting, how much couldn’t say. I get way too much movement between camper nose and truck though to place something that contacted both.
I know on ours-std cab with long nose camper the air passing over truck roof is being compressed like a turbine. It would briefly be entertaining to see real numbers on what’s occurring.
The buffeting on ours was horrendous- couldn’t open a window-make your ears hurt. Shortly after we got the camper I replaced truck fixed window with a slider. First trip with it we had bugs being splattered on the INSIDE of windshield. But it did get rid of the buffeting. I made a screen for the rear slider, we usually have it open bout 1/8-1/4. No buffeting, even opening the side windows. I attribute to the air passing over the cab, forced down the back between cab and bed. Force was air enough to pull air out the pressure flap vents sort of venturi, creating a vacuum in cab. Just a guess who knows..
If I wasn’t so lazy Id copy Sleepys-I don’t need the anti-buffeting but minimizing the smeared bug juice would be nice. Unlike front of nose where bugs get stuck and easily washed off later, they don’t on front wall off camper, just leave tracers, 'evidence' of their passing.
I would think that not having that air forced over cab would have to help, at least with buffeting, how much couldn’t say. I get way too much movement between camper nose and truck though to place something that contacted both.
