So........ I was wondering......
- Thread starter Lazy Dog
- Start date
Doesn't answer my question tho', for some reason these came to mind.........
Just like a bus............
Robbed off the samba:
COEFFICIENT of DRAG
For Volkswagens
U.S. Beetle…………..0.48 (0.46 per Wikpedia.org)
Super Beetle…………0.47
Ghia………………….0.40 (unconfirmed) Type 141 top speed is basically 8 miles per
higher compared to Beetle with the same motor!
Pre 67 Bus…………...0.43 (0.42 per Wikpedia.org)
Type 3……………….0.48
Type 3 w/wing………0.34
Vanagon…………….0.44
New Beetle………….0.44 (0.38 per Wikpedia.org)
Rabbit……………….0.42
Scirocco……………..0.39
Porsche 924…………0.31
Porsche 356(1951)…..0.28
ARVW………………0.15 (1980’s Diesel VW Streamliner)
Tatra…………………0.37
I've just gone over this on a Bonneville thread. CD is not the only thing to think of, frontal area is more important at the speeds that we are driving. Too lazy to explain further.
I'd say, no, because youre creating more turbulence as the air tries to move into the cavity left by the window, rather than the single wave of eddies over the top of the roof you now have 3 sets, above, below an over the dash. The 2 sets of eddies going inside will fight againt each other, creating more turbulence ,increasing the pressure (an drag) inside the cab. That's before you add in the restrictions like your head, seats, lower tailgate, window edges/pillars etc.
plus if it worked, everyone would be doing it.
plus if it worked, everyone would be doing it.
Found this one too..........
But, admittedly they are the exception..........
Unfortunately I can find no further info on why these particular cars choose to run without glass..............
But, admittedly they are the exception..........
Unfortunately I can find no further info on why these particular cars choose to run without glass..............
Who's Eddie?
Imagine having two eddies in the back of the van! the weight of them would defeat the purpose of taking out the windows!!
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http://theoldmotor.com/wp-content/uploads/2013/06/arrowheadcar-600x380.jpg
This is your answer Pat, leave the windows in and streamline the rear, reducing drag....
your very welcome.
This is your answer Pat, leave the windows in and streamline the rear, reducing drag....
your very welcome.
Wrong Eddie, Brian
https://www.facebook.com/whoseddie
I never got the Gasser look an the way they sit so high.
https://www.facebook.com/whoseddie
I never got the Gasser look an the way they sit so high.
Laminar flow is what's needed to reduce drag. You'll only increase drag caused by reduced laminar flow because of the shape of the cars interior. If on the other hand you had an interior that was shaped to increase velocity and reduce pressure (a divergent duct) then yeah you'd gain, but otherwise no. Read about venturis. Smooth everything out on the outside of your vehicle to reduce parasitic drag and let the shape of the vehicle do the rest. Believe it or not it's an entire field of study in itself and I've only scratched the surface (excuse the pun) in my own studies in aircraft maintenance!
