Most pec...bizarre aerodynamics thread.

[Manoah2u]

1981 Mercedes-Benz Auto2000

very low drag coefficient of Cd = 0.28

The petrol engine was derived from a 3.8 L standard V8 modified with automatic cylinder shut-off that temporarily shut down four chambers, resulting in the fuel consumption figure for the Euromix driving cycle being reduced to just 9.3 liters per 100 kilometers.

T diesel version had a 3.3-litre six-cylinder diesel engine with twin turbochargers, and managed a fuel consumption of 7.5 liters per 100 kilometers at a speed of 120 kmh

the third version that was the most pioneering: a gas-turbine engine which brought several benefits, including low-pollutant combustion, low weight, compact dimensions, favorable torque characteristics and the elimination of water cooling.

The concept was still considered novel when it was used in the Jaguar C-X75 of 2010 – a testament to how forward-thinking the early-1980s Mercedes engineering department was.

[hpras]

Rollie Free heading towards 150.3mph on a Vincent in 1948. Notice that the Speedo emphasizes ellipses. Completely nutters.
http://upload.wikimedia.org/wikipedia/e ... rd_run.jpg

Priceless.
The helmet must be purely for improving aero me guess, considering the rest of his protective clothing...

The "helmet" was a bathing cap.

[wesley123]

Seeing how crazy Time Attack aero is becoming this article from the WTAC website is worth mentioning here;

http://www.worldtimeattack.com/index.ph ... -good-for/

[wesley123]

CART cars of that era all had pretty cool era. This is 1998s Penske PC27

[djos]

http://i.imgur.com/AmzvevE.jpg

CART cars of that era all had pretty cool era. This is 1998s Penske PC27

CART cars always looked great and the racing was awesome - I hope Tony George dies a horrible painful death for his role in destroying American open wheel racing!

[wesley123]

SuperGT always is interesting.

[J.A.W.]

Is that the Lexus DTM equivalent?

[gixxer_drew]

Yes, it is.

[wesley123]

Bumping with a pic of the DTM diffuser.

Never would have imagined the throat to be that wide.

[variante]

Bumping with a pic of the DTM diffuser.

Never would have imagined the throat to be that wide.

Great shot! That diffuser reminds me of something...

[machin]

Yeah, that is a good photo! Would be interesting to see a better one of the front too...

[RicME85]

Aye did think it was pretty similar

[hpras]

Technically.... since it starts well before the rear axle, wouldn't that be called a ground effect tunnel?

[machin]

Well technically a diffuser is simply a section of geometry with an expanding cross section that is used for pressure recovery of the flow. This fluid separator has a diffuser for example:



So whether you call that underfloor configuration "ground effect tunnels" or not, its still the diffuser section that Variante was talking about.

[Sebp]

http://www.spiegel.de/fotostrecke/gueri ... 30992.html