Richard Van Grunsven’s Antares 20E

Dean Sigler Electric Powerplants, Sustainable Aviation 1 Comment

In a visit to Richard Van Grunsven’s airport home, just across the Sunset Highway from North Plains, Oregon, this blogger was privileged to get a closeup view of his Antares 20E, an electric self-launching sailplane from Germany’s Lange Aviation.  Spanning 20 meters (65.6 feet), the gleaming white ship has fluidity of line and integrity of design one would expect from Gerhard Waibel (the “W” in Alexander Schleicher’s ASW sailplanes).  The outstanding feature that sets this particular long-span craft apart is its 42 kilowatt (57 horsepower) motor, snugged neatly into a bay behind the pilot, and raised on a carbon-fiber mast by a smooth electric/hydraulic mechanism.  A cylindrical unit, the motor’s outer shell rotates about a stationary hub attached to the …