Airbus flew an A380, the world's largest passenger aircraft, on a gas-to-liquid fuel derived from converting natural gas to liquid kerosene, a conversion process similar to the one that extracts liquid fuel from plant biomass.
Virgin Atlantic flew an experimental flight in February on a Boeing 747, using a blend of babassu palm and coconut oils although, since both are used in food, those oils will not be pursued as a long-term solution.
Air New Zealand plans a test this year on a Boeing 747 using jatropha oil. Japan Airlines and Continental Airlines are also planning tests, on a Boeing 747 and a Boeing 737, respectively. Neither airline has yet selected a biofuel.