Date: Sat, 27 Sep 2008 09:04:09 -0700
Reply-To: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Subject: Re: Why don't we have these kinds of Pop top here in the USA
"Atlantic "
In-Reply-To: <20080927120744.966381165C3@hamburg.alientech.net>
Content-Type: text/plain; charset=ISO-8859-1
dear California-Atlantic-Florida Fronts piece wanters and havers
how interesting that photo series is
http://www.flickr.com/photos/pseudonomad/1405892055/
mi roof rack is a little different as well---
rather than the cross roof aluminum square tubing --
ours is a single 7/16 rail running aft to stern on each side
supported on 1/4 points ...
seems to be factory as the fasteners do not show through the flocking on the
inside of the pop top
as always my amazement continues ... a mass produced vehicle -- yet rarely
do we see two alike
yours
On Sat, Sep 27, 2008 at 5:06 AM, Mike S <mikes@flatsurface.com> wrote:
> At 04:42 AM 9/27/2008, Kim Brennan wrote...
>
>> On Sep 27, 2008, at 12:49 AM, Mike S wrote:
>>
>> At 10:04 PM 9/26/2008, Chris S wrote...
>>>
>>>> The front luggage rack creates a LOT of turbulence and drag. Yes,
>>>> frontal area is the same but with the rack the drag is much higher.
>>>>
>>>> <
>>>> http://i16.photobucket.com/albums/b7/misterpolak/Misc%20VW%20nuttiness/windtests.jpg
>>>> >>
>>>>
>>>> That shows 5 different configurations, none of which is the oddball
>>> in
>>> question. What makes you think #3 is significantly different than
>>> that
>>> one?
>>>
>>
>> The 3rd one down is a traditional US Westy. Notice that the how the
>> extra height of the luggage rack really blows the smoke and destroys
>> the laminar flow.
>>
>> The 4th one down is closest to the Atlantic poptop. Due to the low
>> area of the top right above the windshield, the laminar flow is able
>> to be preserved further down the body of the vehicle.
>>
>
> No, not even close, I'm surprised you would even suggest that. #3, the
> "traditional Westy," is by FAR the closest. Everything from the B
> pillar back is identical. #4 is VERY different than either, higher and
> rounded.
>
> If you want to make "similarity" comparisons, #4 and a traditional
> Westy both start the slope from the top of the windshield to their
> maximum height. The Atlantic has a discontinuity, where that transition
> is moved back toward the B pillar. The transition is also much steeper.
> This is the best picture I could find:
> http://www.flickr.com/photos/pseudonomad/1405892055/
>
> I'm not claiming which might be better, just that those pictures are
> meaningless with respect to the Atlantic aerodynamics.
>
--
roger w
There are two kinds of jobs in the world:
Picking up garbage and telling people things.
Successful people do both, with the same good attitude. (riw)
----------------------------------------------------------
Explore printed work at: http://www.prliving.ca/
View the growing list of video work at:
http://revver.com/find/video/?query=LastonLastof&search_on=owners
and ... older work at
http://video.google.com/videoplay?docid=-7135104650374818257
http://video.google.com/videoplay?docid=3259745150182742364
| 
