G4 to HY4 – Swapping Batteries for Fuel Cells

Dean Sigler Electric Powerplants, GFC, Sustainable Aviation 0 Comments

The University of Stuttgart and Pipistrel started down similar paths around 2007, with the Stuttgarters attempting a hydrogen-powered two-seat aircraft, the Hydrogenius; and Pipistrel developing a self-launching craft with either two-stroke power or an equivalent electric motor. The two groups came to rely on one another, with hydrogenius using the forward fuselage and wings of the Taurus G2 with hydrogen tanks in the fuselage and a Sineton motor on the tail.   On February 27, 2008, Professor Rudolf Voit-Nitschmann, the father of the solar powered aircraft Icare 2 and the unofficial World Record holder for distance flown in a solar powered aircraft, along with dipl. ing. Steffen Geinitz and dipl. ing. Len Schumann met with Pipistrel leaders, including CEO Ivo Boscarol and …

Ingenious e-Genius

Dean Sigler Electric Powerplants, GFC, Sustainable Aviation 0 Comments

At the third annual Electric Aircraft Symposium in San Carlos, California in 2009, designers from Germany and Slovenia showed their plan for a hydrogen-powered aircraft called Hydrogenius.  Today, a newly constructed, battery-powered “e-Genius” (developed along parallel lines with Hydrogenius) will be Eric Raymond’s mount for the July 10-17 Green Flight Challenge in Santa Rosa, California.  Eric writes that “e-Genius is now flying, and has reached the required 100 mph.” Hydrogenius’s original layout, replaced for the Green Flight Challenge with a simpler lithium-polymer battery-only system.  1 – Hydrogen tank 2 – Radiator 3 – Stack Module (Hydrogen Fuel Cell) 4 – System Module (Hydrogen Fuel Cell) 5 – Power Distribution Unit 6 – LiPoly Battery to start the fuel cell system 7 – …