Bloodhound LSR Thread As Requested...
Discussion
Burbleboy said:
I would just like to thank IN51GHT for his continual posts and answering 99.9% of the questions in this thread. Top bloke for doing this. 
A very interesting thread and loving all the technical answers and questions to boot.
What he said.A very interesting thread and loving all the technical answers and questions to boot.
I will get down there next year as part of the 1000mph club...
69 coupe said:
Great idea,
Just bought one for my Nephew, very confusing about the XXXX'S, I still filled in the fields with his home address rather than xx's as I couldn't see workout how I would get the certificate. Not sure where the cert goes, him or me via my paypal details.
The certificate is apparently emailed to whatever email address you used. Just bought one for my Nephew, very confusing about the XXXX'S, I still filled in the fields with his home address rather than xx's as I couldn't see workout how I would get the certificate. Not sure where the cert goes, him or me via my paypal details.
At least I hope so, I've just bought one for the old man for xmas.
Storer said:
How easy (or not) is it to get a look around this project in person or as part of a group?
I would expect a donation is required but do you have to be a (dubious) 'celeb' to get an invite.
I know you have been doing presentations at events but there is nothing like looking at the real thing.
Paul
I'm no celeb and I've been to see it, as have a number of others here!I would expect a donation is required but do you have to be a (dubious) 'celeb' to get an invite.
I know you have been doing presentations at events but there is nothing like looking at the real thing.
Paul
Not quite sure of the process as I got invited by a friend as part of the local RNLI, but certainly very accessible.
Storer said:
Excuse my ignorance but is the stuff explosive and require tools unlikely to create sparks or transmit static?
Rocket fuel must have been part of a chemistry lesson I missed at school.
Paul
If it's something you're interested in learning more about, there's a brilliant book called Ignition! by John Clark which can be found online: http://library.sciencemadness.org/library/books/ig...Rocket fuel must have been part of a chemistry lesson I missed at school.
Paul
Clark was a US chemist working on rocketry and wrote his book in the late '60s. It's very readable (ie not a text book although there is a fair bit of chemistry in there) even for a lay audience. HTP is an interesting fuel although it's actually been quite unpopular outside of the UK.
If you want a shorter description of how Bloodhound's hybrid rocket works and why they're using HTP and rubber, have a look at the bottom of of the first page here: http://arstechnica.com/gadgets/2014/03/bloodhound-...
Max_Torque said:
The hybrid rocket system uses a specific catalyst to cause the HTHP to dis-associate into it's seperate molecules, a process that also releases a lot of heat energy, warming up the oxygen stream, and helping light the solid (polymer) fuel in the rockets combustion chamber
In this case, it's a platinum mesh screen that the the HTP flows over before hitting the rubber.Edited by Dr JonboyG on Friday 19th December 15:08
Storer said:
How easy (or not) is it to get a look around this project in person or as part of a group?
I would expect a donation is required but do you have to be a (dubious) 'celeb' to get an invite.
I know you have been doing presentations at events but there is nothing like looking at the real thing.
Paul
http://www.bloodhoundssc.com/shop/1k-club-membersh...I would expect a donation is required but do you have to be a (dubious) 'celeb' to get an invite.
I know you have been doing presentations at events but there is nothing like looking at the real thing.
Paul
kieranbennett said:
69 coupe said:
Great idea,
Just bought one for my Nephew, very confusing about the XXXX'S, I still filled in the fields with his home address rather than xx's as I couldn't see workout how I would get the certificate. Not sure where the cert goes, him or me via my paypal details.
The certificate is apparently emailed to whatever email address you used. Just bought one for my Nephew, very confusing about the XXXX'S, I still filled in the fields with his home address rather than xx's as I couldn't see workout how I would get the certificate. Not sure where the cert goes, him or me via my paypal details.
At least I hope so, I've just bought one for the old man for xmas.
harryowl said:
Storer said:
How easy (or not) is it to get a look around this project in person or as part of a group?
I would expect a donation is required but do you have to be a (dubious) 'celeb' to get an invite.
I know you have been doing presentations at events but there is nothing like looking at the real thing.
Paul
http://www.bloodhoundssc.com/shop/1k-club-membersh...I would expect a donation is required but do you have to be a (dubious) 'celeb' to get an invite.
I know you have been doing presentations at events but there is nothing like looking at the real thing.
Paul
Thanks.
Now a Gold Member.
Paul
Dr JonboyG said:
In this case, it's a platinum mesh screen that the the HTP flows over before hitting the rubber.
It's a nickel mesh that's been silver plated.Edited by Dr JonboyG on Friday 19th December 15:08
The rougher the plating the better as the roughness results in higher surface area. During use the plating effectively gets polished by the HTP passing through it, thereby reducing it's efficiency, I believe we think 2-3 firings per cat pack will be possible before the efficiency loss becomes too great, but this will be confirmed in the first quarter of next year when we do car system rocket tests at NAMMO.
IN51GHT said:
It's a nickel mesh that's been silver plated.
The rougher the plating the better as the roughness results in higher surface area. During use the plating effectively gets polished by the HTP passing through it, thereby reducing it's efficiency, I believe we think 2-3 firings per cat pack will be possible before the efficiency loss becomes too great, but this will be confirmed in the first quarter of next year when we do car system rocket tests at NAMMO.
I stand corrected (again!) In fairness I'm pretty sure Ron Ayers told me it was Pt earlier this year but perhaps I misremembered.The rougher the plating the better as the roughness results in higher surface area. During use the plating effectively gets polished by the HTP passing through it, thereby reducing it's efficiency, I believe we think 2-3 firings per cat pack will be possible before the efficiency loss becomes too great, but this will be confirmed in the first quarter of next year when we do car system rocket tests at NAMMO.
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