Bloodhound LSR Thread As Requested...
Discussion
McWigglebum4th said:
Dave Hedgehog said:
surprised redbull where not knocking at the door, sounds exactly their sort of thing
Not hugely surprisedThey like flashy and bulls
tty dudes who wear sun glasses in doorsThis is some blokes in a shed wearing overalls with some serious know how
Have no idea what they do other than there is aways a "MF KultureKlash" going on.
Whatever that means.
s
mcdjl said:
Squiggs said:
A simple question from a simpleton .....
What's a 7075 T6 billet and what does it look like before it's been machined?
It's a material specification grade for aluminium. It looks like a rather large lump of metal, approximately a cuboid just a bit bigger than the finished thing. And yes I'm guessing that 90% will have been machined away...thats aircraft levels of loss!What's a 7075 T6 billet and what does it look like before it's been machined?
Max_Torque said:
^^^ Another one of those parts where 99% of the material you buy for the part actually ends up in the swarf re-cycling bin!! ;-)
(iirc, on one of the US fighter demonstrator projects some years ago(might have been F-22?) they forged a huge Titanium main bulkhead ('twix cockpit and main wing spar iirc) that was 5m across, then spent literally several months final machining it. Unfortunately, the set up / jig was wrong, and it was out of tolerance! Think that was an >$1M mistake....... )
I remember watching the documentary on that years ago. 10 internet beers if anyone can find a link to the video?!(iirc, on one of the US fighter demonstrator projects some years ago(might have been F-22?) they forged a huge Titanium main bulkhead ('twix cockpit and main wing spar iirc) that was 5m across, then spent literally several months final machining it. Unfortunately, the set up / jig was wrong, and it was out of tolerance! Think that was an >$1M mistake....... )
mcdjl said:
It's a material specification grade for aluminium. It looks like a rather large lump of metal, approximately a cuboid just a bit bigger than the finished thing. And yes I'm guessing that 90% will have been machined away...thats aircraft levels of loss!
to be honest, it doesn't take very long neither does it cost very much especially relative to the cost of the programming and machining time, the vast majority of which is in the finishing operations.IN51GHT said:
Not a case of little faith, more a case that the three rockets we are using in year two are larger than the current hole in the back of the car!!!!
What sort of thrust are you expecting to be getting from one of these rockets? Will Nammo be able to 'soup them up' for you, or is it just a case of an off the shelf product now?Ta...
RealityDisorder said:
What sort of thrust are you expecting to be getting from one of these rockets? Will Nammo be able to 'soup them up' for you, or is it just a case of an off the shelf product now?
Ta...
Thrust from each rocket is in the region of 33Kn, we are effectively piggy backed on Nammo's existing ESA programme.Ta...
IN51GHT said:
RealityDisorder said:
What sort of thrust are you expecting to be getting from one of these rockets? Will Nammo be able to 'soup them up' for you, or is it just a case of an off the shelf product now?
Ta...
Thrust from each rocket is in the region of 33Kn, we are effectively piggy backed on Nammo's existing ESA programme.Ta...
I think that you suggested you could get 4 in if you needed to earlier in this thread, is that right?
Do your latest calculations suggest that 99kN may be enough for 1000mph? or are you just going to have to suck it and see?
Thanks in advance....
IN51GHT said:
Don't forget the 90kN offered by the EJ200
I wasn't, the website talks about 90kN (20,233lb) from the jet and a further (peak power) 122kN (27,427lb) from the rocket (the Falcon rocket at the time it was written).So I was just unsure whether you are going to need around 120 kN thrust from the rocket to break 1000mph or whether your initial calculations might have been a bit pessimistic and whether around 100 would do.
Is 950mph a good enough LSR, or would people feel a little disappointed?
Of course, if you can fit 4 rockets to the car or possibly squeeze a little more thrust out of the jet and/or rockets then you might find you have more power than you need.
Just wondering.
I'm late to the party as i've only just stumbled across this thread but some awesome pics and info here - thanks for those involved that continue to update!
Having just caught up and read the last few pages i see the Cosworth engine has been replaced with the Jag V8 which will have design and engineering knock-on effects, but i can't see why the Cosworth engine was removed and a new sponsor needed to be found. How come this is the case? The Cosworth engine seemed like a good shout!
Having just caught up and read the last few pages i see the Cosworth engine has been replaced with the Jag V8 which will have design and engineering knock-on effects, but i can't see why the Cosworth engine was removed and a new sponsor needed to be found. How come this is the case? The Cosworth engine seemed like a good shout!
Sonic said:
I'm late to the party as i've only just stumbled across this thread but some awesome pics and info here - thanks for those involved that continue to update!
Having just caught up and read the last few pages i see the Cosworth engine has been replaced with the Jag V8 which will have design and engineering knock-on effects, but i can't see why the Cosworth engine was removed and a new sponsor needed to be found. How come this is the case? The Cosworth engine seemed like a good shout!
Cosworth don't have a current F1 program, I'd warrant that had a lot to do with it.Having just caught up and read the last few pages i see the Cosworth engine has been replaced with the Jag V8 which will have design and engineering knock-on effects, but i can't see why the Cosworth engine was removed and a new sponsor needed to be found. How come this is the case? The Cosworth engine seemed like a good shout!
CraigyMc said:
Cosworth don't have a current F1 program, I'd warrant that had a lot to do with it.
Thanks.Indeed, i guess is whilst a while ago now Cosworth came onboard. It just seems a shame for such effort to be made to design and make a highly bespoke integration with it, only for that to be "a very expensive paperweight" as in51ght put it
I see the split was announced in 2013 so i'm quite behind the times, and also see there was some discussion on page 3 of this thread now i've finally got back that far
AER said:
mcdjl said:
It's a material specification grade for aluminium. It looks like a rather large lump of metal, approximately a cuboid just a bit bigger than the finished thing. And yes I'm guessing that 90% will have been machined away...thats aircraft levels of loss!
to be honest, it doesn't take very long neither does it cost very much especially relative to the cost of the programming and machining time, the vast majority of which is in the finishing operations.IN51GHT said:
The boys managed to dry-fit one of the front bell cranks & spring/damper assy's today.
Bear in mind the front subframe is near around 750mm long!!!
the question is
Bear in mind the front subframe is near around 750mm long!!!
What is more impressive
The MASSIVE spring and damper assembly
or the fact the front appears to be resting on two legs from a Ikea flat pack desk
I know you plan to do 1000mph in a straight line but some form of steering must be required to keep it straight.
What, where and how?
I assume it is a one-off design but is it power assisted, British built and is it connected mechanically to the steering wheel or "fly by wire(or hydraulic hose)"?
Paul
What, where and how?
I assume it is a one-off design but is it power assisted, British built and is it connected mechanically to the steering wheel or "fly by wire(or hydraulic hose)"?
Paul
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