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Jet partly runs on veggie oil

— Photo: AP

The jet which ran on bio fuel mix in Auckland on Tuesday.

WELLINGTON: A passenger jet powered in part by vegetable oil completed a two-hour flight on Tuesday to test a biofuel that could lower airplane emissions and cut costs, said Air New Zealand.

One engine of a Boeing 747-400 airplane was powered by a 50-50 blend of oil from jatropha plants and standard A1 jet fuel.

This year has seen an unprecedented push for alternative fuels by airlines, which were slammed by skyrocketing oil prices earlier in 2008 and are now bracing themselves for a falloff in air travel in the face of a global economic slowdown.

While Air New Zealand couldn’t say whether the blend would be cheaper than standard jet fuel since jatropha is not yet produced on a commercial scale, the company expects the blend to be “cost competitive.”

Biofuels were once regarded as impractical for aviation because most freeze at the low temperatures encountered at cruising altitudes. But tests show jatropha, whose seeds yield an oil already used to produce fuels like biodiesel, has an even lower freezing point than jet fuel.

An Air New Zealand official called the flight “a milestone for the airline and commercial aviation.”

“Today we stand at the earliest stages of sustainable fuel development and an important moment in aviation history,” he said shortly after the flight. The company’s goal is to become the world’s most environmentally sustainable airline.

In February, Boeing and Virgin Atlantic carried out a similar test flight that included a biofuel mixture of palm and coconut oil — but was dismissed as a publicity stunt by environmentalists who said the fuel could not be produced in the quantities needed for commercial aviation use. — AP

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