[DeTomaso] [EXTERNAL] Gr4 Pantera at Le Mans video
mark skwarek
ehpantera at yahoo.com
Sat Jan 30 16:39:37 EST 2021
This has happened to me at Silver State while running 155+ mph. First it was startling. Now I leave the hood unlatched. Low pressure over the center of the hood causes it to bow a bit , resulting in the hood pin to pull out of the catch. The hood rises up about 2 inches.
Mark
On Saturday, January 30, 2021, 04:14:57 PM EST, Mike Drew via DeTomaso <detomaso at server.detomasolist.com> wrote:
Terry,
When Junior Wilson spun (multiple times) in his big wreck at over 200 mph, on the first half-spin, the wind caught the unlatched decklid, flipped it up and over and smashed it down onto the roof and windshield. The inertia caused it to bend down as it smashed the windshield and because the car was black, he thought he had flipped upside down. He was still upright though, and continued to spin around and around until the car finally left the road and partially buried itself in the desert.
Mike
Sent from my iPad
> On Jan 30, 2021, at 13:02, Himes, Terry (US 397C) <terry.himes at jpl.nasa.gov> wrote:
>
> Euuu. Great real-time test evidence. 180. Really? Yikes!!
> -------- Original message --------
> From: Mike Drew <mikeldrew at aol.com>
> Date: 1/30/21 9:56 AM (GMT-08:00)
> To: "Himes, Terry (US 397C)" <terry.himes at jpl.nasa.gov>
> Cc: De Tomaso Forum <detomaso at server.detomasolist.com>
> Subject: Re: [EXTERNAL] [DeTomaso] Gr4 Pantera at Le Mans video
>
> 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
>>
>> Dawn Spacecraft Team
>> Europa Lander Science Support Team
>> TGO Sequence Lead
>> MEX Sequence Lead
>> Odyssey Sequence Team
>> Spitzer Space Telescope Data Team
>>
>> Phone: (818) 393-6261
>> Cell: (818) 653-8213
>> 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....
>>
>>
> [1]https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDto6H
> s4WbVuu7!YDVYa2Ju_IYisZSMcqFPuJLju5rvlASwgdmhsCsTg_iwLD8pPaiPkbmY0IHyim
> 1LY2z6Mg$
>>
>> Mike
>>
>>
>> Sent from my iPad
>>
>
> References
>
> 1. https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDto6Hs4WbVuu7!YDVYa2Ju_IYisZSMcqFPuJLju5rvlASwgdmhsCsTg_iwLD8pPaiPkbmY0IHyim1LY2z6Mg$
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-------------- next part --------------
This has happened to me at Silver State while running 155+ mph. First
it was startling. Now I leave the hood unlatched. Low pressure over
the center of the hood causes it to bow a bit , resulting in the hood
pin to pull out of the catch. The hood rises up about 2 inches.
Mark
On Saturday, January 30, 2021, 04:14:57 PM EST, Mike Drew via DeTomaso
<detomaso at server.detomasolist.com> wrote:
Terry,
When Junior Wilson spun (multiple times) in his big wreck at over 200
mph, on the first half-spin, the wind caught the unlatched decklid,
flipped it up and over and smashed it down onto the roof and
windshield. The inertia caused it to bend down as it smashed the
windshield and because the car was black, he thought he had flipped
upside down. He was still upright though, and continued to spin around
and around until the car finally left the road and partially buried
itself in the desert.
Mike
Sent from my iPad
> On Jan 30, 2021, at 13:02, Himes, Terry (US 397C)
<[1]terry.himes at jpl.nasa.gov> wrote:
>
> i>>? Euuu. Great real-time test evidence. 180. Really? Yikes!!
> -------- Original message --------
> From: Mike Drew <[2]mikeldrew at aol.com>
> Date: 1/30/21 9:56 AM (GMT-08:00)
> To: "Himes, Terry (US 397C)" <[3]terry.himes at jpl.nasa.gov>
> Cc: De Tomaso Forum <[4]detomaso at server.detomasolist.com>
> Subject: Re: [EXTERNAL] [DeTomaso] Gr4 Pantera at Le Mans video
>
> 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)
>> <[5]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
>>
>> Dawn Spacecraft Team
>> Europa Lander Science Support Team
>> TGO Sequence Lead
>> MEX Sequence Lead
>> Odyssey Sequence Team
>> Spitzer Space Telescope Data Team
>>
>> Phone: (818) 393-6261
>> Cell: (818) 653-8213
>> [6]thimes at jpl.nasa.gov
>>
>>
>>
>> On 1/29/21, 11:23 PM, "DeTomaso on behalf of Mike Drew via DeTomaso"
> <[7]detomaso-bounces at server.detomasolist.com on behalf of
> [8]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....
>>
>>
>
[1][9]https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDt
o6H
>
s4WbVuu7!YDVYa2Ju_IYisZSMcqFPuJLju5rvlASwgdmhsCsTg_iwLD8pPaiPkbmY0IHyim
> 1LY2z6Mg$
>>
>> Mike
>>
>>
>> Sent from my iPad
>>
>
> References
>
> 1.
[10]https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDto6
Hs4WbVuu7!YDVYa2Ju_IYisZSMcqFPuJLju5rvlASwgdmhsCsTg_iwLD8pPaiPkbmY0IHyi
m1LY2z6Mg$
> _______________________________________________
>
>
> Detomaso Email List is not managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> [11]DeTomaso at server.detomasolist.com
> [12]http://server.detomasolist.com/mailman/listinfo/detomaso
>
> To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
>
> Members who post to this list grant license to the list to forward
any message posted here to all past, current, or future members of the
list. They also grant the list owner permission to maintain an archive
or approve the archiving of list messages.
_______________________________________________
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References
1. mailto:terry.himes at jpl.nasa.gov
2. mailto:mikeldrew at aol.com
3. mailto:terry.himes at jpl.nasa.gov
4. mailto:detomaso at server.detomasolist.com
5. mailto:terry.himes at jpl.nasa.gov
6. mailto:thimes at jpl.nasa.gov
7. mailto:detomaso-bounces at server.detomasolist.com
8. mailto:detomaso at server.detomasolist.com
9. https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDto6H
10. https://urldefense.us/v3/__https://youtu.be/OdKqD_NfXFY__;!!PvBDto6Hs4WbVuu7!YDVYa2Ju_IYisZSMcqFPuJLju5rvlASwgdmhsCsTg_iwLD8pPaiPkbmY0IHyim1LY2z6Mg$
11. mailto:DeTomaso at server.detomasolist.com
12. http://server.detomasolist.com/mailman/listinfo/detomaso
13. mailto:DeTomaso at server.detomasolist.com
14. http://server.detomasolist.com/mailman/listinfo/detomaso
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