Green Flight Challenge – Day One

Dean Sigler Electric Powerplants, GFC, Sustainable Aviation

  Sunday, September 25 marked the kickoff of the Green Flight Challenge sponsored by Google, a NASA Centennial Challenge managed by the CAFE Foundation, with a thorough technical inspection for each entrant, followed by a weigh-in.  Held at the Charles M. Schulz Sonoma County Airport, the event is an event of international importance, despite the small turnout. With only four entrants making an appearance out of the original 13 that had announced and made it through the rigorous design review, there might be cause for disappointment. Consider, though, the Berblinger competition held in April at the Aero Expo in Friedrichshafen, Germany. 36 teams signed up, 24 made it to the Expo, 13 started the course and eight finished. The GFC has a comparable start-finish …

Berblinger Flight Competition Winners for 2011

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

The town of Ulm, Germany holds an annual Berblinger Prize competition to honor the memory of the Little Tailor of Ulm, Albrecht Berblinger, who attempted to fly an early hang glider across the Danube in 1811.  This 200th anniversary year has been marked by special celebrations, including an ambitious aerial challenge for “green” aircraft. 36 applicants were pared to 24 participants in the actual flight competition, and on April 15, a mere 13 started on the flight between Friedrichshafen and Ulm and return.   Eight were able to complete the exercise, according to contest officials.  The rest were unable to compete or finish, “due to insufficient financial backing, technical difficulties or the absence of the appropriate flying licenses the remaining competitors …

Many Happy Hours in Sunny Skies

Dean Sigler Uncategorized 1 Comment

Eric Raymond, over the last 20 years, has accumulated more solar-powered flying hours than any other pilot. And what hours these have been. Having met Gunther Rochelt and flown Rochelt’s Musculair human-powered airplane in 1986, Eric was inspired to apply the light construction techniques to the building of a solar-powered airplane. In 1990, he flew Sunseeker I across the United State in 21 hops totaling 121 hours in the air, going from California to Kitty Hawk, North Carolina, the birthplace of powered flight. He upgraded Sunseeker over the years, improving the powerplant and aerodynamics of the amazingly light aircraft. Even with solar cells, batteries, and a 2.5 kW motor, the airplane weighed little more than a legal ultralight. Sunseeker II …