First hydrogen plane tested in US

Published: Sun Jul 3rd, 2005
Source: news.bbc.co.uk



A US company says it has successfully completed test flights of a potentially environment-friendly aircraft powered by liquid hydrogen.

Liquid hydrogen stored on board and oxygen extracted from the air are combined in fuel cells. The electricity generated drives the propellers.

California-based AeroVironment says a full tank of hydrogen would keep the unmanned plane in the air for 24 hours.

Planes using fuel cells might help curb greenhouse gas emissions from aviation.
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