In June 2010 at the ILA Air Show in Berlin, EADS, the European defence company, demonstrated the first public flight of an aircraft with one engine powered by algae derived bio-fuel. The aircraft was a twin-engine Diamond DA42 NG light aircraft. The engine fed with bio-fuel showed a fuel consumption that equated to a saving of 5-10 percent compared to the engine using conventional jet kerosene. It is claimed that exhaust gas measurements show that the bio-fuel is much less polluting than conventional fuels.