A Supermarine Spitfire awaits refuelling with Avgas 100LL fuel at Farnborough International Airshow media launch. The pilot is the air show's Flight Operations Director Rod Dean who stands on the wing of this old WW2 warbird fighter of the British Royal Air Force and the refueller man has unhooked the nozzle from the bowser and hauls it across the concrete towards the aircraft. Hazardous and flammable signs are on the truck's rear. Avgas 100LL is a fuel designed for piston engines and is the most commonly used aviation fuel, dyed blue for easy visual identification. 100LL, spoken as "100 low lead", contains a small amount of tetra-ethyl lead (TEL), a lead compound that reduces gasoline's tendency to spontaneously explode (detonation or "knock") under high loads, high temperatures and high pressures - perfect for aerobatic performance flying.
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