Can today’s aircraft fly using biofuel without the need to make any changes to the plane?
Yes, biofuel – also called sustainable aviation fuel – already works with today’s aircraft engines – no further technological innovation is required. Swedish airlines already fly using a biofuel blend in their tank on some routes. The products are identical, no matter whether they come from fossil materials or biomass. The aviation industry has agreed on a number of specifications that all biofuels must meet. It means that future aviation fuels, no matter what material is used, will have the same chemical composition and thus can be blended with traditional jet fuel in varying quantities. It means that the same aircraft engines can be used as now and that the biofuel can be handled at airports using the existing fuelling technical infrastructure. At present, a blend of 50 per cent (based on the ASTM standard) is allowed, but the goal is to use 100 per cent biofuel within a few years.