I went on a visit to the Bloodhound SSC technical centre at Avonmouth today. This is the actual engine that will be used in the Bloodhound SSC when it attempts to smash the land speed record next year, pushing the record from 763.05mph to over 1000mph. It gets the car to 300mph when 3 rocket motors join in to get up to 1050mph theoretically. That is 450m/s - faster than a bullet.
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Daryl: its a Magnum 0.375, apparently. Admittedly they might have been looking for a 'slow' bullet to compare it with. I expect that is from a pistol, not a rifle, but I don't know about guns.
When it brakes at the end of the measured mile, which should have taken less than 3.6 seconds incidentally, it slows down at 60mph/s with its air brakes - that is 3g. It accelerates at about 1g, so 0-60 would take about 2.6s if you could just 'drop the clutch' but, of course, it doesn't work like that. Then when the rocket fires then it accelerates at about 2.5g, so it is accelerating at about 50mph/s. Wow, that'd be fun. I want some of that.
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