Bloodhound LSR - 1000 mph car

Discussion in 'General Discussion' started by BTB 500, Oct 29, 2019.

  1. BTB 500

    BTB 500 MB Club Veteran

    Messages:
    18,620
    Joined:
    Aug 7, 2005
    Location:
    Berkshire
    Car:
    R129 SL500, W639 Vito 120, S203 C230
    Anybody else following this? After 11 years the car is now up and running, testing in the South African desert prior to attempting 1,000 mph next year. 334 mph reached in a short run this morning. They have a YouTube channel and have been posting short daily updates since they arrived just over a week ago. Fascinating stuff.

    Bloodhound LSR

    Bloodhound Land Speed Record

    Capture.JPG
     
    GeeJayW, bob6600, mattk1 and 2 others like this.
  2. Mactech

    Mactech Hardcore MB Enthusiast

    Messages:
    3,160
    Joined:
    Dec 19, 2005
    Location:
    Biddulph
    Car:
    Volvo V90 D4 Momentum Pro, Land Rover Defender, Mazda MX~5, Honda VFR1200
    One of the more intriguing things I've done was to be Andy Green's run engineer for his last record attempt, a rather more pedestrian 350 mph to take the Diesel Landspeed Record.
    It was a real privilege to work with such a great test pilot.
    He comes at things from about 180 degrees from all the racing drivers I've worked with before!
    Race car speeds and car dynamics were all familiar at up to 350 mph, but the 1000mph bit I will leave to those with aviation experience.

    Andy and I.jpeg
     
    Dryce, renault12ts, SW18 and 3 others like this.
  3. Chris-S

    Chris-S Hardcore MB Enthusiast

    Messages:
    783
    Joined:
    Dec 10, 2016
    Car:
    C350e
    Sad to say, as it’s dragged on, I’ve lost interest in it to the point I now consider it an utter irrelevance. It isn’t going to result in any great revelations in technology, aerodynamics or vehicle dynamics, other than for those wanting to go very fast on salt flats.

    A great crack for all those involved I’m sure, despite the persistent funding problems.
     
  4. Stratman

    Stratman Hardcore MB Enthusiast

    Messages:
    4,615
    Joined:
    Jun 15, 2003
    Location:
    Sunbury
    Car:
    W203 C200 CDI '04Estate
    ^^^^ Now if the power was applied through the wheels...
     
  5. OP
    OP
    BTB 500

    BTB 500 MB Club Veteran

    Messages:
    18,620
    Joined:
    Aug 7, 2005
    Location:
    Berkshire
    Car:
    R129 SL500, W639 Vito 120, S203 C230
    We're all different ... I find the engineering involved really interesting. I saw an interview somewhere where they were explaining how the car had evolved since the project started. For example they originally needed a supercharged Jaguar V8 to pump fuel into the rocket motor, but battery technology has evolved to the point now that they can use a far simpler (and lighter) electric system instead. I appreciate Chris Harris isn't everyone's cup of tea but there are some great insights in this video from a few years back:

     
    GeeJayW and SW18 like this.
  6. OP
    OP
    BTB 500

    BTB 500 MB Club Veteran

    Messages:
    18,620
    Joined:
    Aug 7, 2005
    Location:
    Berkshire
    Car:
    R129 SL500, W639 Vito 120, S203 C230
    An excellent (and recent) interview with Andy Green here (including the bit about being able to remove the Jaguar V8 from the car):

     
    GeeJayW, SW18 and Mactech like this.
  7. SW18

    SW18 Hardcore MB Enthusiast

    Messages:
    672
    Joined:
    Jul 7, 2016
    Location:
    London
    Car:
    S212 E500 Sport
    That record has recently been broken:
    challenger 2 land speed record - Google Search
    Remarkably the car is based on a 50-year-old design suggesting that not a lot has changed in the piston-engined world in all that time.
     
    BTB 500 likes this.
  8. SW18

    SW18 Hardcore MB Enthusiast

    Messages:
    672
    Joined:
    Jul 7, 2016
    Location:
    London
    Car:
    S212 E500 Sport
    Which one is Andy and which one is you...? :D
     
    Mactech likes this.
  9. Tonygw

    Tonygw Active Member

    Messages:
    91
    Joined:
    May 30, 2019
    Location:
    Leicestershire
    Car:
    C250 CDI AMG Blue efficiency diesel
    If nothing else... This is 100% British enigneering at its best and what we as a country are good at...

    I think this is excellent and will be following now they have the funding sorted...

    After all we need a boost right now.. (no pun intended)
     
    BTB 500 likes this.
  10. Mactech

    Mactech Hardcore MB Enthusiast

    Messages:
    3,160
    Joined:
    Dec 19, 2005
    Location:
    Biddulph
    Car:
    Volvo V90 D4 Momentum Pro, Land Rover Defender, Mazda MX~5, Honda VFR1200
    Andy must be the long aerodynamic one!:cool:
     
    SW18 likes this.
  11. Vintage Racer

    Vintage Racer Hardcore MB Enthusiast

    Messages:
    167
    Joined:
    Dec 3, 2016
    Location:
    Dordogne, France
    Car:
    2001 Mercedes R129, SL320......1959 Triumph TR3a and a 2016 Dacia Duster (yes really!).
    through 550 mph today..........incredible achievement by the whole team!

    I come from a time when we used to celebrate true heroes and this team deserve far more recognition than they receive. The work that they have carried out with schools, colleges, universities etc to push engineering skills, has been superb. Thank god, that we still have some people pushing the boundaries.

    Sadly, it would appear that many in the UK, would rather idolise reality TV 'Z' listers. :wallbash:
     
    Mactech, SW18 and GeeJayW like this.
  12. Tonygw

    Tonygw Active Member

    Messages:
    91
    Joined:
    May 30, 2019
    Location:
    Leicestershire
    Car:
    C250 CDI AMG Blue efficiency diesel
    Well said.. couldn't agree more. The engineering and skills involved are incredible. And all helps to keep the UK as the global center for engineering excellence. Keep up the good work.
     
    Mactech, SW18 and GeeJayW like this.
  13. OP
    OP
    BTB 500

    BTB 500 MB Club Veteran

    Messages:
    18,620
    Joined:
    Aug 7, 2005
    Location:
    Berkshire
    Car:
    R129 SL500, W639 Vito 120, S203 C230
    They hit 628 mph today :cool:
     
    Mactech likes this.
  14. Mactech

    Mactech Hardcore MB Enthusiast

    Messages:
    3,160
    Joined:
    Dec 19, 2005
    Location:
    Biddulph
    Car:
    Volvo V90 D4 Momentum Pro, Land Rover Defender, Mazda MX~5, Honda VFR1200
    I can't begin to tell you how good Andy Green is.
    It is my personal opinion that there is nobody on earth (apart from James Bond!) who could have taken a car beyond the sound barrier on land.
    It certainly was not just a case of planting your foot and hanging on!
    The car required steering input due to the rake and aerodynamics as it passed through certain speed strata. There was no way to practice this. Andy was pioneering as he combied the high frequency control inputs in to the steering and overlaid them with the prescribed low frequency inputs for the very first time as the car tended to mach 1.....
    When we were doing the diesel speed record, the speed instrumentation quit as the car exceeded 400kph, simply because we were using a racecar car system. No race car goes over these speed, so the units were simply not calibrated above this speed.
    Andy explained this to a group of journalists saying he knew the gear ratios and so could simply calculate the speed from the RPM and overall ratio....
    The journos' jaws just dropped as he explained this was really no problem for him having been used to calculating target distance during 'instrument failure' exercises in Phantom fighters by triangulating mentally the position whilst flighting at close to mach 2.....
    A first in maths from Oxford only begins to explain how good he is.
     
  15. Rorywquin

    Rorywquin Hardcore MB Enthusiast

    Messages:
    2,152
    Joined:
    Nov 14, 2016
    Location:
    God's County
    Car:
    SL400
    Exciting to see if they can do it....
     
    BTB 500 likes this.
  16. OP
    OP
    BTB 500

    BTB 500 MB Club Veteran

    Messages:
    18,620
    Joined:
    Aug 7, 2005
    Location:
    Berkshire
    Car:
    R129 SL500, W639 Vito 120, S203 C230
    So far they are just testing with the jet engine ... not sure what the theoretical top speed with that is, but next year they will be adding the hybrid rocket that will be fired to (hopefully) push them up to the 1000 mph target speed.

    It's amazing that while simply doing test runs they are already within 6 mph of Richard Noble's old record in Thrust 2 (634 mph).
     
    Vintage Racer and GeeJayW like this.
  17. Bellow

    Bellow Hardcore MB Enthusiast

    Messages:
    4,982
    Joined:
    Apr 26, 2010
    Location:
    Ecosse.
    Car:
    450
    I read last week when they tested to 500mph they conducted a test to see how far it would it take to come to a halt from that speed without deploying 'chutes or braking. Three miles.
     
  18. OP
    OP
    BTB 500

    BTB 500 MB Club Veteran

    Messages:
    18,620
    Joined:
    Aug 7, 2005
    Location:
    Berkshire
    Car:
    R129 SL500, W639 Vito 120, S203 C230
    Yup they've done several 'coasting' tests to measure the actual rolling resistance of the car (so it can be compared with predicted figures), which is an important part of their performance modelling. They've also done runs with the airbrakes extended right from the start, for similar reasons. This whole programme is about data gathering, prior to the really serious stuff next year.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.