A Six Pipistrel Formation

Dean Sigler Batteries, Electric Powerplants, Sustainable Aviation Leave a Comment

Ready to Set Records Again You may remember these guys from the conclusion to a successful, electrically-powered flight in a Pipistrel Velis from their base in Switzerland to the North Sea in 2020. They set several world records in that attempt, and showed how a resourceful team could overcome the lack of an electrical charging infrastructure between Schänis, Switzerland) and Norderney on the northern German coast. Review that team’s list of accomplishments here and in the Sustainable Skies entries by your editor from September 6, 2020 and September 12, 2020.   The team’s official web site contains many records set on the flight, with fairly astonishing numbers for electricity used, much lower than the equivalent fuel that would have been consumed by a petrol-powered Pipistrel. Like many aviation records, the mountain-to-sea adventure was a lonely one, shared mainly with the few at destination airports and the ground crews who carried chargers and other gear to each stop.  The team is moving …

Dreaming of Big Electric Airplanes: CATL and COMAC

Dean Sigler Announcements, Batteries, Electric Powerplants, Hydrogen Fuel, Sustainable Aviation Leave a Comment

CATL and COMAC are dreaming of big electric airplanes.  The first company has made some recent battery breakthroughs, and the second has recently brought China’s biggest jet airliner to market. CATL. Contemporary Amperex Technology Ltd., is a behemoth.  According to TheInformation.com, “The company spent $124 million to acquire a lithium mine in China’s Jiangxi province, an operation that would feed into a $2.1 billion battery factory it was building nearby. And in October, it spent $3.6 billion to buy 25-percent of a cobalt operation in the Democratic Republic of Congo. This year, CATL has spent $1 billion on a lithium brine operation in Bolivia, $885 million for lithium rights in China’s Xinjiang province and $920 million for lithium rights in the Chinese province of Sichuan.” This globe-girdling spate of acquisition indicates the seriousness of China’s move to dominate world battery markets.  With recent news of CATL’s 500 Watt-hour-per-kilogram cells and their possible use in large aircraft, the need to compete …

Electrifly-In, Grenchen 2020

Dean Sigler Electric Powerplants, Solar Power, Sustainable Aviation Leave a Comment

Grenchen, Switzerland’s airfield hosted the fourth electric fly-in on that site over the weekend of September 11 and 12.  No fewer than 16 different electric craft flew in or were on hand to greet the lucky visitors.  Even celebrities were there, including Solar Impulse pilot Bertrand Piccard and Olympic champion, astrophysicist and pilot Dominique Gisin. The Grenchner Tagblatt (daily news) was on hand to report on the proceedings, and seems to have come away impressed with the turnout and the technology.  The paper reported this sidelight on the recent record-setting trip from Switzerland to the North Sea of Germany in a Pipistrel Velis (also on display on the field). “Lush parties were celebrated almost everywhere, all under the sign of electromobility, which according to Westermann must be the only possible future. Incidentally, the record aircraft had also been brought to Grenchen and could be viewed at close range. An amusing detail on the side: Westermann said that despite enormous media coverage, around …

On to the North Sea, Electrically

Dean Sigler Batteries, Electric Powerplants, Sustainable Aviation Leave a Comment

Elektroweltrekordflug A team in Switzerland attempted an elektroweltrekordflug, an electric world record flight, hoping to set seven world records in one 700-kilometer trip. Flying a new, certified Pipistrel Velis, the team of Marco Buholzer and co-pilot Morell Westermann hoped to find their way into the Guinness Book of World Records for the following: • Lowest energy consumption (kWh / 100 km -62 miles) over 700km (434 miles) • Highest average speed over 700 km (km / h) • Highest flight altitude ever reached with an electric aircraft (meters – 3.280 feet – above main sea level) • Fastest climbing performance from 0-1000m / 1000-2000m / 2000-3000m (m / s) • Fastest average speed over 100km (km / h) • Smallest number of intermediate stops over a distance of 700 km (number of stops)` • Longest electrically flown route in 24/48/56 hours (km) The team made much the same point that Gabriel DeVault made in accepting the MacCready Prize at last …

Pipistrel’s Nuuva’s – Electric Cargo Haulers

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

Like the TV commercial of the obviously wealthy couple requesting an architect design a kitchen around their choice of designer faucet, Pipistrel may have designed a cargo aircraft around the ubiquitous EUR-pallet.  Its extraordinary Nuuva V300 can hold three of these 1,200 mm × 800 mm × 144 mm (47.2 in × 31.5 in × 5.7 in) platforms laden with items destined for distant places.  The common dimensions enable planning a load (also considering total weight) that can be inserted into the Nuuva with a standard forklift.  The cargo hold can manage up to 460 kilograms (1,000 pounds) within three cubic meters (106 cubic feet) of space, a little more than an Escalade. Electricity to Lift, Gasoline to Push It takes a big vehicle with loads of power to hoist this kind of cargo.  Pipistrel sticks with proven systems for vertical and horizontal flight.  “The Nuuva V300 takes-off and lands using eight independent battery-powered Pipistrel E-811 electric motors, already Type Certified. This revolutionary zero-emission powertrain is entirely liquid-cooled, including the …

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 aircraft have been promised for the event, ranging from ultralight motorgliders to more advanced sailplanes with front electric sustainer motors, to four-seat hybrid tourers, two-seat trainers and even an e-race airplane. AlpinAirPlanes GmbH, will bring their Pipistrel Velis E. Martin …