Teardrop calculation

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Dreamliner 200
Posts: 136
Joined: Tue Feb 05, 2008 3:09 pm
Location: Lake Macquarie

Post by Dreamliner 200 »

Like this Rev?

Image

I think I get it, makes it swirl away rather than curl around and create drag...... :)
DLRA Member 752
Livin' the dream!
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Reverend Hedgash
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Joined: Wed Oct 19, 2005 2:19 pm
Location: Hobart, Tasmania

Post by Reverend Hedgash »

Exactamundo.
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Chris Dunham
Posts: 9
Joined: Thu Mar 30, 2006 7:39 pm

Re: Transaxle=$$$

Post by Chris Dunham »

gidge348 wrote:
grumm441 wrote:
Rob wrote:
Dr Goggles wrote:It would work with a transaxle
Possibly, Audi, Porsche or Subaru, however, none of these items are really within the Jarman-Stewart ........
G


Just on the quiet if you are looking for a cheap strong transaxle,& if you see an old Citroen DS lying around the place have a look at the transaxle….

Only 4 speed cast iron casing REALLY short box and the same box used in the Maserati Merack, nearly bullet proof. Was popular in Lamborghini replicas behind warm small block Chevs till they went over to 5&6 speed Renaults etc.

If you find a dead Citroen the box is probably on worth $50 or so….?


The 5 speed citroen transaxle was used in the DS23, Merack, SM and one model of Lotus that I can't recall. It is not as common as the 4 speed and not as strong as the 4 speed which is pretty tough. The 4 speed was fitted to the ID DS and D Special. They sit in front of the DS engine (which is front wheel drive mid engine design) which spins backwards like older Hondas. They are pretty heavy, the diff can't be flopped.

Chris.
penny
Posts: 335
Joined: Mon Feb 26, 2007 8:30 pm
Location: adelaide

vortex website

Post by penny »

penny
Posts: 335
Joined: Mon Feb 26, 2007 8:30 pm
Location: adelaide

Post by penny »

http://www.airtab.com/en/ another site that is also for tow vehicles , and have some wind tunnel data for a honda sedan . I would like to see some fitted to the long distance racers at the lake and hope for some fuel saving for them.
glengowrie annexe of the Institute of Backyard Studies
David Leikvold
Posts: 981
Joined: Mon Apr 16, 2007 11:57 pm
Location: Brisbane

Re: Teardrop calculation

Post by David Leikvold »

Here's a streamliner that we definitely know works well:

http://www.youtube.com/watch?v=1hEV92gBsoM

http://www.youtube.com/watch?v=q5408f53bkU

http://www.youtube.com/watch?v=3yMz5IUDJpA

This third video is nothing special but it does clearly show how elliptical the cross section of the body is. Circular is fine for carrying fluids but adds frontal area and just a bit more space in a race car. Really nice windshield installation, and the canopy fits so easily. Gotta love that attention to detail in design.

Cheers
Dave :D
Good, Fast, Cheap, pick any two!
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