RE: The Bloodhound Gang: PH Meets

[Mike Duff]

moribund said:

Small point - thought the tyres for the tarmac runs were from the EE Lightning not Meteor?

Checked and you're right... I always get my Cold War jets mixed up!

[mikEsprit]

Any possible relevance between this effort and consumer vehicles?

I just read an article this week where the author was advocating a return to lower speed limits, not persuasively in any sense, but still...

[SimonD]

Krikkit said:

Isn't that the square of speed, not the square root?

Indeed. Bit of a typo there me thinks.

[gl20]

MajorMantra said:

NelsonP said:

"Bloodhound will ride on solid alloy wheels which will be rotating at 10,200mph at 1000mph"

That is some overspeed. Sounds like he'll be going 1000mph, sideways

Should it read "10,200RPM"?

It's an amazing project. Utterly bonkers.

Without resorting to a calculator, 10200 rpm would mean a wheel diameter of around 80-90 cm. so sounds about right. ( presumably the speed at the outer rim would be 1,000 mph, tending to infinity as you move to the centre..)

[mikEsprit]

gl20 said:

MajorMantra said:

NelsonP said:

"Bloodhound will ride on solid alloy wheels which will be rotating at 10,200mph at 1000mph"

That is some overspeed. Sounds like he'll be going 1000mph, sideways

Should it read "10,200RPM"?

It's an amazing project. Utterly bonkers.

Without resorting to a calculator, 10200 rpm would mean a wheel diameter of around 80-90 cm. so sounds about right. ( presumably the speed at the outer rim would be 1,000 mph, tending to infinity as you move to the centre..)

The speed gets slower as you move toward the middle.

[daytona365]

How about all the major players in the world chip in for a form of runway similar to the 'Maglev' system of locked in drivetrain to rail, so there's no chance of flipping or losing control. The prestige would still come from being the fastest on this 'track' with a greatly reduced risk of certain death ?

[gl20]

mikEsprit said:

gl20 said:

MajorMantra said:

NelsonP said:

"Bloodhound will ride on solid alloy wheels which will be rotating at 10,200mph at 1000mph"

That is some overspeed. Sounds like he'll be going 1000mph, sideways

Should it read "10,200RPM"?

It's an amazing project. Utterly bonkers.

Without resorting to a calculator, 10200 rpm would mean a wheel diameter of around 80-90 cm. so sounds about right. ( presumably the speed at the outer rim would be 1,000 mph, tending to infinity as you move to the centre..)

The speed gets slower as you move toward the middle.

Fek. You're right. Not sure what I was thinking!

[annodomini2]

They play you 'The Bad Touch'

[Cheesie]

This is a fantastic project and it is encouraging the new generation of engineers through being so open about how and why they are doing things. Just a couple of very minor points I have spotted in the article (as a scientist!) The wheels are rotating at 10,200 rpm not mph and the drag on an item increases as a function of the square of the speed not the square root but I am being really picky as it is a great article, I particularly like that a Jag V8 is being used as the oxidiser pump motor!!.

[NelsonP]

doogz said:

For such a massive website, it's pretty poor they can't get someone, or perhaps it's someone useful, to proof read articles. What's the point in posting such interesting technical articles if they're just wrong?

I feel like we're all being a little pedantic here (myself included).

Although it is somewhat ironic. If I were Andy green (which I'm not, my brass ones are way too small) I'd want as many pedants chipping in as possible.

This is an amazing and inspiring project. Best of British to all involved!

[IN51GHT]

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Just saying....

[CrutyRammers]

IN51GHT said:

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Just saying....

Amazed that wasn't linked from the article really. Come on PH.

[harryowl]

doogz said:

SimonD said:

Krikkit said:

Isn't that the square of speed, not the square root?

Indeed. Bit of a typo there me thinks.

For such a massive website, it's pretty poor they can't get someone, or perhaps it's someone useful, to proof read articles. What's the point in posting such interesting technical articles if they're just wrong?

Further pedantry warning, the brake discs are steel not carbon, the carbon ones they tested shattered at 10,000 rpm.

[IN51GHT]

harryowl said:

doogz said:

SimonD said:

Krikkit said:

Isn't that the square of speed, not the square root?

Indeed. Bit of a typo there me thinks.

For such a massive website, it's pretty poor they can't get someone, or perhaps it's someone useful, to proof read articles. What's the point in posting such interesting technical articles if they're just wrong?

Further pedantry warning, the brake discs are steel not carbon, the carbon ones they tested shattered at 10,000 rpm.

In fact, to be 100% accurate the runway discs are carbon, the desert ones steel