[DeTomaso] [EXTERNAL] Gr4 Pantera at Le Mans video

[Mike Drew]

Terry,

The front end of the car is subject to lift when the hood is latched—it lifts the whole car up at speed. When it’s unlatched the hood aerodynamically floats, with equal pressure above and below. This is why it raises higher when the airspeed is higher. 

The guys who ran Silver State would prop the front hood up a fixed amount and some ran with the decklid unlatched. The decklid would also float, preventing rear-end lift. 

Things got interesting when the car spun 180-degrees....

Mike 

Sent from my iPad

> On Jan 30, 2021, at 08:17, Himes, Terry (US 397C) <terry.himes at jpl.nasa.gov> wrote:
> 
> Hmmm?  Dunno 'bout that. Wouldn't the raised hood cause a hydraulic effect? Disrupting the flow 
> of air. 
> 
> "A Purple Heart proves you were smart enough to hatch a plan,
> stupid enough to try it and lucky enough to survive!"
> 
> Terry W. Himes 
> JPL Jet Propulsion Laboratory
> Deep Space Exploration – Mission Operations
> 
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> thimes at jpl.nasa.gov
> 
> 
> 
> On 1/29/21, 11:23 PM, "DeTomaso on behalf of Mike Drew via DeTomaso" <detomaso-bounces at server.detomasolist.com on behalf of detomaso at server.detomasolist.com> wrote:
> 
>    Guys,
> 
>    From Le Mans Classic in 2018, a great video of the ex-Herbert Muller factory Gr4 Pantera. The team forgot to secure the front hood and it floats at speed, which is actually aerodynamically beneficial!
> 
>    Great sound, great video....
> 
>    https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDto6Hs4WbVuu7!YDVYa2Ju_IYisZSMcqFPuJLju5rvlASwgdmhsCsTg_iwLD8pPaiPkbmY0IHyim1LY2z6Mg$ 
> 
>    Mike
> 
> 
>    Sent from my iPad
>