AeroVironment, a California-based company, says it has successfully completed a test flight of an aircraft powered by liquid hydrogen.

AeroVironment, a California-based company, says it
has successfully completed a test flight of an aircraft powered by liquid
hydrogen.


The company said the liquid hydrogen
was stored on board and oxygen was extracted from the air and combined in
fuel cells generating electricity that drove the aircraft’s eight propellers,
the BBC reported.


The aircraft, called Global Observer,
looks like a glider, but much of how the aircraft is powered is being kept
secret.


‘We’re carrying liquid hydrogen
on board at very low temperatures,’ Alex Hill, AeroVironment’s director of
Washington operations, told the BBC. ‘So the insulation on the tank is crucial.’


AeroVironment believes this type
of aircraft could be used as telecommunications platforms, replacing or
complementing satellites. Hydrogen-powered aircraft are being sought to
help reduce greenhouse gases from aviation.

Source : www.physorg.com