Race is on to build a 1000 mph car!

18 November 2009 by David Cohen

Strapped into a custom built seat, Andy Green prepares for the ride of his life. The pancake-flat desert stretches out for miles ahead. The computer indicates all systems are normal. He eases off the brakes and puts his foot down on the throttle. The jet engine roars into life. In precisely 42.5 seconds he'll be travelling 1000 mph. In a car.

"It's almost impossible to tell the difference between going supersonic in a car and in an aircraft," says Green. He is the only person on Earth who can say that from personal experience. Green was a fighter pilot for the UK Royal Air Force for 20 years, and he is also the fastest man on wheels. In 1997, driving a vehicle called ThrustSSC, he set the world land speed record of 763 miles per hour, becoming the first and only person to break the sound barrier in a car (761 mph under standard conditions). Now, together with the Bloodhound SSC design team, he's attempting to do it all over again, and then some.

This time there's competition. A three-way race is developing, with two other teams, one from North America and the other from Australia, vying to wrest the record from the Brits. The first step will be to break the existing record and get past 800 mph. If that succeeds, the next stage is to attempt 1000 mph (1609 kilometres per hour). "That's what we're designing the car for," says Ron Ayers, chief aeronautic engineer on the Bloodhound project.

All three competing vehicles have wheels, brakes and a steering wheel, but that's pretty much where the similarity with conventional cars ends. Getting up to the speed of sound and beyond poses challenges that a normal car will never encounter, requiring some radical design and engineering.

For example, the wheels of a 1000 mph car will need to rotate at over ...............   READ MORE: New Scientist