RE: Build Starts For BLOODHOUND SSC

RE: Build Starts For BLOODHOUND SSC

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Discussion

nonuts

15,855 posts

231 months

Tuesday 8th February 2011
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Can't wait to see / hear this, hope the public get chance to see it in the UK. In fact pretty please do some testing at Farnborough or nearby!

sumpoil

431 posts

166 months

Tuesday 8th February 2011
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The Black Flash said:
ralphrj said:
BILL PAYER said:
There was a time when these things had piston engines and still resembled a race car,what is the piston engine record at the moment does anyone know ?
wikipedia said:
In 2008 Tom Burkland broke the piston-engined, wheel-driven record for the flying mile, recording a speed of 415.896 mph (669.319 km/h). He drove the Burkland family streamliner powered by two 450+ cu. in. supercharged alcohol-fueled Donovan (aluminum Chrysler) engines (bought second hand), with crankshafts bolted together nose-to-nose.
Not come on much since Campbell has it? I'm surprised it's not higher by now. (Not to detract from the achievement, mind)
If i'm not mistaken i think the reason it can't go much higher is, essentially, friction. Engines can produce more power no problem, but piston engines need to deliver power to the ground though driven wheels - and it's the friction between ground and wheel, or rather lack of it, at high speed that limits the outright Vmax.

SC00P

18 posts

170 months

Tuesday 8th February 2011
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sumpoil said:
If i'm not mistaken i think the reason it can't go much higher is, essentially, friction. Engines can produce more power no problem, but piston engines need to deliver power to the ground though driven wheels - and it's the friction between ground and wheel, or rather lack of it, at high speed that limits the outright Vmax.
You could well be right there - you only had to see Richard Hammond using a Porsche to race a Beetle across the desert for an example of this - you need to use a desert to get up to world record speeds and they don't have any grip.

And all this about how a proper car needs to be powered by pistons or driven by the wheels - why put up barriers to innovation?

will261058

1,115 posts

194 months

Tuesday 8th February 2011
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Insight said:
"36 years-worth of work into just 36 months" is that just marketing garble for saying that they had 10 people working on the project?

I think it's a great thing they are doing but I really think this sort of bigging themselves up is a little silly, it's like saying they've all been working at 110% - and as they are engineers they'll know that that's impossible (unless they over-engineered themselves in the first place so they aren't very efficient and were them surprised that actually they could do more work than they first predicted).

The car is impressive enough guys, you don't need to make up statistics just to prove it.
Did you really need to comment at all, you obviously dont have a clue so why dont you just keep quiet. People like you get right up my nose
:furious :

will261058

1,115 posts

194 months

Tuesday 8th February 2011
quotequote all
SC00P said:
sumpoil said:
If i'm not mistaken i think the reason it can't go much higher is, essentially, friction. Engines can produce more power no problem, but piston engines need to deliver power to the ground though driven wheels - and it's the friction between ground and wheel, or rather lack of it, at high speed that limits the outright Vmax.
You could well be right there - you only had to see Richard Hammond using a Porsche to race a Beetle across the desert for an example of this - you need to use a desert to get up to world record speeds and they don't have any grip.

And all this about how a proper car needs to be powered by pistons or driven by the wheels - why put up barriers to innovation?
Friction is not a problem at that speed as the materials available can cope with the temps generated. The biggest problems are lift and drag. The friction between ground surface and tyre you are referring to ie traction, is not such a problem here since the wheels are not turned by the power plant its driven purely by thrust.

Edited by will261058 on Tuesday 8th February 15:17

monthefish

20,449 posts

233 months

Tuesday 8th February 2011
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VPower said:
Insight said:
"36 years-worth of work into just 36 months" is that just marketing garble for saying that they had 10 people working on the project?
Not wishing to start an argument, but your NOT an Engineer are you!!
I'm guessing he's not a mathematician either.

10 people working for 36 months would be 360 months work.

12 months in a year, means that 360 months is 30 years-worth of work.

(you’d need 12 people to achieve 36 years-work of work in 36 months)




BelperJim said:
Good luck to all involved. Can't wait to see it running.
yes

It'd be bloody brilliant if they achieve their goal.

British Beef

2,250 posts

167 months

Tuesday 8th February 2011
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133,000HP seems a lot today, but in a few years time we will all be driving around cars with that sort of power.

At the current rate of increase of power of most sports cars, the power output doubles approximately every 20 years.

Therfore if we start with 500hp today and extrapolate, then by the year 2170 the supersaloons, (eg M5, AMG, RS6 etc) will all be pushing out +/-130,000hp.

Unfortunately, if you apply the same theory to car weight gain, the cars will weigh about 500tons.

.....I might just go back to work now!


VPower

3,598 posts

196 months

Tuesday 8th February 2011
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Insight said:
I do the marketing for a few engineering companies so I'm very impressed by what they can do and just wish that the people marketing this car would speak in a plain and simple language.


My negative comments about the article relate to the marketing wording not the actual car, as mentioned previously, I think its a great project and support it whole heartedly.
OK accepted.

Most of the people are volunteers on this project.

Can you offer them any free help with marketing?

You might have to exceed 100% of you normal work load to do it! smilelaugh

jellison

12,803 posts

279 months

Tuesday 8th February 2011
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Only recently started in build!!!!!!!

CPB31

3,630 posts

190 months

Tuesday 8th February 2011
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monthefish said:
VPower said:
Insight said:
"36 years-worth of work into just 36 months" is that just marketing garble for saying that they had 10 people working on the project?
Not wishing to start an argument, but your NOT an Engineer are you!!
I'm guessing he's not a mathematician either.

10 people working for 36 months would be 360 months work.

12 months in a year, means that 360 months is 30 years-worth of work.

(you’d need 12 people to achieve 36 years-work of work in 36 months)
Or just under 11 at 110%
(Tongue firmly in cheek)

and it's you're not your
(Tongue not in cheek)



monthefish said:
BelperJim said:
Good luck to all involved. Can't wait to see it running.
yes

It'd be bloody brilliant if they achieve their goal.
+1

Great when these high profile achievements happen and engineers are recognised as professionals, rather than drain cleaners!

woody68

139 posts

199 months

Tuesday 8th February 2011
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Great news guys .. ;-)

As for not been able to understand the jargon comments me and my 11 yr old son have been Bloodhound 1K members for over 2 years now and he fully understands everything about the car (probably more than me lol )he recently asked a question at a supporters meeting about Air brakes on the car which made me grin with pride for the lad lol

Keep up with fantastic effort

R26Andy

404 posts

163 months

Tuesday 8th February 2011
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There is a really good technical article in this months Professional Enginer magazine for those who receive or have access to it. I also think it is available online (free?).

Andy

vitessesteve

38 posts

219 months

Tuesday 8th February 2011
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If you like this extreme car have a look at this: The Angelic Bulldog Project team is building a streamliner to break the world outright motorcycle land speed record.

A UK built 400mph wheel driven motorbike!

BILL PAYER

526 posts

181 months

Tuesday 8th February 2011
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Im presuming there must also be classes for electric, steam power and other propulsion systems with there own separate records

Zad

12,714 posts

238 months

Wednesday 9th February 2011
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There are indeed other classes. So far as I know, JCB hold the diesel wheel driven record still
http://en.wikipedia.org/wiki/JCB_Dieselmax



We aren't bad at this game really. Steam powered record:
http://www.steamcar.co.uk/index.html

And having a pop at the UK and world electric records too:
http://inhabitat.com/bluebird-to-break-uk-electric...



T.K

461 posts

180 months

Wednesday 9th February 2011
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Rap group!?!

British Beef

2,250 posts

167 months

Wednesday 9th February 2011
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Does anyone know how flat / smooth these salt planes are??

Are they so smooth that this thing can go 1000mph without breaking up over the bumps?

I struggle to go more than 50mph without almost breaking my car over some of UKs potholed tarmac roads!

Johnpidge

588 posts

191 months

Wednesday 9th February 2011
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Brilliant - good luck - Andy Green has steel balls!!!!

tomsimes

156 posts

193 months

Wednesday 9th February 2011
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British Beef said:
Does anyone know how flat / smooth these salt planes are??

Are they so smooth that this thing can go 1000mph without breaking up over the bumps?

I struggle to go more than 50mph without almost breaking my car over some of UKs potholed tarmac roads!
Hakskeen Pan is South Africa (which is where Bloodhound is going to run) is very flat - a sample was taken over a 2km stretch of the desert, which found that the maximum elevation change over this distance was 61 mm.

Take a read:

http://www.bloodhoundssc.com/news/desert_updates/h...

lonefurrow

161 posts

254 months

Thursday 10th February 2011
quotequote all
Insight said:
VPower said:
Insight said:
"36 years-worth of work into just 36 months" is that just marketing garble for saying that they had 10 people working on the project?

I think it's a great thing they are doing but I really think this sort of bigging themselves up is a little silly, it's like saying they've all been working at 110% - and as they are engineers they'll know that that's impossible (unless they over-engineered themselves in the first place so they aren't very efficient and were them surprised that actually they could do more work than they first predicted).

The car is impressive enough guys, you don't need to make up statistics just to prove it.
Not wishing to start an argument, but your NOT an Engineer are you!!

Engineers ALWAYS "DESIGN" in a safety factor and therefore 110% loading is ALWAYS possible in Engineering terms!

Engineers are fully aware of what a 100% STANDARD MAN/WOMAN DAY entails in terms of work done, and how much productivity can be expected before fatigue sets in. Pushing past that point means they have to sacrifice time elsewhere, like giving up quality family time.

Ever been parachuting??
Would you jump out knowing that it was designed to take only your exact weight and would BREAK if you had an extra helping of apple pie at lunch?
100.001% breaking point say???

Apologies if you feel insulted, not my intention at all, but please don't insult Engineers with incorrect assertions.

A project like this needs all the support it can get, and for incorrect negative comments on a forum whose motto is "Speed Counts" should just not be expected! furioussoapbox
Nope I'm not an engineer at all, but I work alongside them making their dreams a reality. I do the marketing for a few engineering companies so I'm very impressed by what they can do and just wish that the people marketing this car would speak in a plain and simple language.

As for the 110% thing, that was a joke. Most engineering is about 500% over engineered, just as it should be and yes I have been parachuting (which by the way is not as much fun as bungee jumping). It just gets me when all those annoying little tikes on X factor go on and give their best performance saying they gave 110% when in reality, mathematically, you can only give 100% of yourself. Apologies for any confusion about that.

My negative comments about the article relate to the marketing wording not the actual car, as mentioned previously, I think its a great project and support it whole heartedly.
Firstly, amazing, inspiring project.

Secondly, you are absolutely correct and I also hate incorrect use of '110%'. Anything above 100% infers an increase from a specific, measured point - e.g. an increase of 4% gives a result of 104%. In terms of design, any safety factor should be factored below 100%. It is impossible to give an effort of over 100%, unless referring to an increase over a previous baseline.

I am an engineer, by the way :-)