Assertion: blackbird | /r/CapableOf | use only power
Facets:
value: from the wind
type: OTHER
Source sentences:
text: On July 2, 2010, Blackbird set the world's first certified record for going directly downwind, faster than the wind, using only power from the available wind during its run on El Mirage Dry Lake.
text: On June 16, 2012, Blackbird set the world's first certified record for going directly upwind, without tacking, using only power from the wind.