China test-flies biofuel-powered plane
Beijing - A jumbo jet powered by fuel made from oily nuts has made a two-hour test flight in Beijing as part of a US-Chinese renewable energy partnership.
The fuel for Friday's flight is one of a series of research projects launched in 2010 by the US and China, the world's two biggest oil consumers.
The fuel was developed by Boeing Co, Honewell UOP, Chinese oil company PetroChina Ltd and Air China Ltd.
On Friday morning, an Air China Boeing 747-400 took off from the Beijing airport and flew as officials watched. It landed at the same field.
The companies say such biofuel could be commercially available in three to five years.