SPARK Winter 2015-2016 | Page 9

iTECH Why is it so difficult to reach 1,000mph? Drag! https://youtu.be/UJ4f0bt2QyM SPARK asks Rob: You’re testing the car out in Newquay, Cornwall. Why was it chosen? Newquay used to be RAF St Mawgan. It has a 1.7 mile long runway and used to be the widest in the UK. Heathrow or Gatwick would be too disruptive. It’s one of the Space Shuttle Programme’s emergency runways because it is that big! We’ll do tests with just the EJ200 (jet engine) and pack it all up along with our support vehicle, the Supercat, and then fly it out to South Africa. Photo: John Vincent When we do the desert runs, we won’t use rubber tyres because at 500mph they will disintegrate. Instead we’ll use special allmetal wheels. What is special about the wheels? Bloodhound will run on the world’s fastest wheels which have taken seven years to design, develop and build. They’re incredibly dense, made of solid aluminium and weigh 95 kilos. As they spin, they get heavier (increasing in mass) so if you put a bag of sugar on the rim it would weigh 50 tonnes! SPARK 9