Electrifly-In: A Big Show in a Small Space

Dean Sigler Announcements, Batteries, Electric Powerplants, Hybrid Aircraft, Sustainable Aviation Leave a Comment

For those of us who find trudging over miles of airfield, such as Oshkosh’s AirVenture, or even local fly-ins spread along a runway tiring, Grenchen, Switzerland’s Electrifly-In may be welcome relief.  The event, previously called the Smartflyer Challenge, is planned for September 12 and 13 and should draw electric aircraft from all over Europe. Grenchen, a town of just over 2,000, has an airport with a single runway of only 865 meters (2,838 feet), enough to enable a Cessna Citation CJ3 to land (and presumably depart).  The runway will host this year’s newly re-named Electrifly-In, devoted to promoting electric aviation.  All the activities will be held in a small, easily-accessible area. All Electric Aircraft – All Day A baker’s dozen …

The Villiger Traveler Updated

Dean Sigler Batteries, Electric Powerplants, GFC, Hybrid Aircraft, Sustainable Aviation Leave a Comment

Urs Villiger flew his Traveler TR230 four-seat touring craft about 10 years ago.  He started revising the Cessna-like vehicle two years ago, turning it into a more aerodynamic and economical machine.  His changes turned the Traveler into a hybrid aircraft and relocated the propeller to the vertical stabilizer. Reflecting professor Dipl.-Ing. Rudolf Voit-Nitschmann’s configurations he developed for Icare II and  e-Genius, the low-drag placement of the drive motor near the top of the vertical fin confines the added drag caused by the propeller’s acceleration of air over the aircraft’s skin to the top-most part of the fin and rudder.  Compare the area exposed to propeller blast to that of a conventional nose-mounted engine “tractor” type aircraft. On static display at …