The State - News from March 7, 1988
Rotor blades on the Da Vinci II, an experimental human-powered helicopter, were damaged beyond repair when it crashed during a test flight that Cal Poly San Luis Obispo aeronautical engineering students were conducting in a hangar in Long Beach. It will take six to nine months to build a new craft so that the students can continue their pursuit of the American Helicopter Society’s $25,000 prize for the first successful flight of a human-powered helicopter, a Cal Poly spokesman said.
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