One of the KLM Boeing 747's four engines was powered by a 50 percent biokerosene/50 percent normal jet fuel mix (Photos: Allard de Witte)
KLM's biofuel-powered 747 prepares for takeoff
Commercial aircraft are a major contributor to greenhouse gas emissions, but manufacturers and operators are taking steps to tackle the problem. Operators such as Virgin Atlantic have conducted demonstration flights using biofuel, and now KLM Royal Dutch Airlines has completed its first ever passenger flight powered by sustainable kerosene. Using a 50 percent biokerosene/50 percent normal jet fuel mix to power one of its four engines, a Boeing 747 carrying 40 select passengers last week circled the Netherlands for an hour in what KLM claims is the first flight of its kind in Europe.
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