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Old 10-26-2017, 04:28 PM   #106
Notebook
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Doesn't seem intuitive, you would think the rolling motion of the wheel would have less friction than sliding?

Why not just put skids on?

N.
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Old 10-26-2017, 05:22 PM   #107
Artlav
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Quote:
Originally Posted by Notebook View Post
 Why not just put skids on?
Why not just add wings?
It's about being in a specific category (a wheeled car) rather than things making sense.
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Old 10-26-2017, 05:26 PM   #108
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Quote:
Originally Posted by Notebook View Post
 Doesn't seem intuitive, you would think the rolling motion of the wheel would have less friction than sliding?

Why not just put skids on?

N.
I suspect the issue is what happens to the air around the wheel - at one point, you are no longer touching the ground, you are surfing on a small layer of air.
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Old 10-26-2017, 07:48 PM   #109
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It's a bit like space exploration. Technically you can do it uncrewed. But you can't then say "first man to be faster than ... on land" or "first man to land on the Moon". Loses it's meaning.
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Old 10-21-2018, 09:28 AM   #110
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Quote:
Bloodhound supersonic car hits financial roadblock
By Jonathan Amos
BBC Science Correspondent
15 October 2018
https://www.bbc.co.uk/news/science-environment-45838994

Bummer!

N.
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Old 12-07-2018, 11:32 AM   #111
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Well, wasn't expecting this. Thought it would be able to keep going.

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A project to race a car at more than 1,000mph has been axed after it failed to secure a 25m cash injection.
https://www.bbc.co.uk/news/uk-england-bristol-46480342
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Old 12-17-2018, 11:02 AM   #112
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A 1,000mph race car project has been saved after an entrepreneur stepped in to buy the business.
The Bloodhound supersonic vehicle - built with a jet engine bolted to a rocket - is all but finished.
Its future was in jeopardy amid a failure to secure investment which forced the firm financing it into administration.
But Yorkshire-based entrepreneur Ian Warhurst has bought the project for an "undisclosed amount".
Administrator Andrew Sheridan, said: "Ian has a strong background in managing highly successful businesses in the automotive engineering sector and he will bring considerable expertise to bear in taking the project forward.
"He will be outlining his plans for the project in detail early in the New Year."
https://www.bbc.co.uk/news/uk-england-bristol-46591860

Hurrrah!

N.
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Old 09-21-2019, 09:10 AM   #113
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Quote:
Bloodhound Diary: Do the maths
By Andy Green
World Land Speed Record Holder
https://www.bbc.com/news/science-environment-49669929
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Old 10-29-2019, 02:02 PM   #114
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The 334mph run starts at around 4:20

Last edited by Evil_Onyx; 10-29-2019 at 02:10 PM.
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Old 11-05-2019, 07:59 PM   #115
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Quote:
Bloodhound goes faster still at 491mph
By Jonathan Amos
BBC Science Correspondent, Hakskeen Pan, South Africa
https://www.bbc.com/news/science-environment-50304922
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Old 11-06-2019, 07:46 AM   #116
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Only 200 mph faster than a Bugatti...
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Old 11-06-2019, 08:58 AM   #117
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Yes, and nearly as pretty.
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Old 11-06-2019, 09:27 AM   #118
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Originally Posted by Notebook View Post
 Yes, and nearly as pretty.
And I suspect, the EJ200 engine creates more miles per gallon.
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Old 11-07-2019, 02:39 PM   #119
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There getting faster 501mph and to think it has not got its booster yet (Hybrid Rocket Motor)

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Old 11-07-2019, 05:48 PM   #120
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Now they only have to deal with:
- 4 times the drag
- 4 times the forces on the wheels
- trans sonic and supersonic effects
- increased control issues
- increased run length
- twice the speed
- twice the dippers

Oh... and they have yet to stick a rocket engine on it.
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