Pipistrel Velis: Part of an Electric Heritage

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

The Pipistrel Velis is the culmination of 13 years of electric aircraft development and the first to gain certification by the European Union Aviation Safety Agency (EASA) on June 10. Pipistrel has been in the electric airplane business since 2007 when it announced the Taurus Electro motorglider, which entered service in 2011.  That aircraft went through several iterations, and is still part of the Pipistrel lineup of electric planes, which includes the Alpha Electro Trainer, the Panthera Hybrid, and the new Velis. Alpha Electro Trainer in SoCal An electric version of the Alpha Trainer, the Electro has been in production since 2015.  With an empty weight of 615 pounds (279 kg) and a maximum take-off weight of 1,212 pounds (550 kg), it is a bit heavier than the Rotax-powered gas version, and carries about 100 pounds less payload.  Both have similar performance, though, with rates of climb around 1,200 feet per minute. Joseph Oldham started a well-organized, well-intentioned operation to …

A L.E.A.P. Forward for Electro.Aero

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

Heady Ambitions Joshua Portlock, Co-founder, Director and Chief Technology Officer for Electro.Aero in Perth, Australia, has a heady set of ambitions.  He and Rob Belaga presented a simple electric vertical takeoff and landing machine, FlyKart, at two different symposia in northern California two years ago, and presented a refined version for the Boeing GoFly competition shortly thereafter.  They’ve made it to the finals of the $2,000,000 contest and will be in the February, 2020 flyoff. In the meantime, he’s started a flight training program using Pipistrel’s Alpha Electro trainer, and is partnering with an almost bewildering  set of industry, government and academic leaders, including Ampaire, Bye Aerospace, E/S/Aero, NASA, Pipistrel, University of Western Australia, and Zero Emissions Vehicles Australia.  Joshua gives a rundown in his down-under TED Talk. Working with ducted fan systems leads to a redesign of a Diamond DA-40 that ditches the internal combustion engine in the nose for a battery pack.  One ducted fan behind and on …

Alpha Electro Achieves FAA Certification

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

A Big Day in Fresno Following certification for Pipistrel’s Alpha Electro trainer in Australia, China, and Canada, the FAA presented this highly-valued acknowledgment that the aircraft meets current airworthiness standards.  After waiting for the agency to remove the restrictive word “reciprocating” from its Light Sport Aircraft regulations, electric aircraft designers have permission to field aircraft with truly modern powerplants. With FAA inspectors painstakingly perusing every part of the Electros, a formal presentation followed, enabling the Sustainable Aviation Project to move forward with plans to bring low-cost pilot training to the Fresno, California area. Officials from the four cities in which Alpha Electros will be hangared were on hand to lend encouragement during the public flight displays of the aircraft. For a thoroughly modern design, the Alpha Electro is very light, at 368 kilograms (809 pounds) with batteries.  Compare that to a Piper J3 Cub, which with a 65-horsepower Continental engine weighed 765 pounds empty.  Adding 12 gallons of gasoline to …

Pipistrel Alpha Electros Come to California

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

News from Joseph Oldham, founder of the Sustainable Aviation Project, and Michael Coates, United States master distributor for Pipistrel Aircraft, heralds the largest delivery of electric training aircraft to date.  Four Pipistrel Alpha Electro Trainers showed up at Fresno, California’s Chandler Airport, all part of the Sustainable Aviation Project.  Described as “a public-private collaboration to reduce the cost of flight training through the use of all-electric general aviation airplanes,” the Project might become a role model for future electric flight training. On March 19, two 18-wheel trucks delivered two 40-foot shipping containers.  Each container carried two Alpha Electros, two chargers, and a pair of replacement battery packs for each airplane.  It took a mere two hours for a volunteer crew of up to six to remove the aircraft and chargers from the containers, leaving an X-Alpha simulator to be sent on its lonely way to Cypress College in Los Angeles. Michael Coates reported, “After removing all the plastic wrapping it …

China Updates, Increases Range for RX1E-A

Dean Sigler Batteries, Electric Powerplants, Sustainable Aviation 1 Comment

China Global Television Network, or CGTN, reports on an updated version of an electric airplane that first took flight in 2015.  The original RX1E could fly for 45 minutes on its battery pack, limiting its utility.  The RX1E-A’s six lithium battery packs can keep the new machine in the air for up to two hours and achieve a maximum speed of 160 kilometers per hour (99.4 mph).  This type of performance makes it more suitable for training and cross-country flights. Similar to a long-winged version of Pipistrel’s Alpha Electro Trainer, soon to be produced in China, the RX1E-A grosses out at 600 kilograms (1,320 pounds), suitable for most Light Sport Aircraft regulations.  It will be interesting to see if production plans match those for Pipistrel’s electric trainer, and if this leads to a healthy competition between the two companies. Designed and built by the Liaoning General Aviation Academy (LGAA), the plane made its maiden flight from the Caihu airport in …

What We’re Looking Forward to at AirVenture 2017

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

We’re looking forward to seeing progress in electric aircraft, and this year may be an opportunity to see real breakthroughs. Two from Pipistrel Besides its regular lineup of high-quality aircraft, Pipistel will have two Alpha Electro trainers on display in their display area.  This is the first time these aircraft will be seen in America, and they’ll be at the right of AirVenture’s main entrance gate in sites 86 and 87. In the Ultralight Area Mark Beierle will display and fly Bravo, Richard Steeves’ e-Gull.  This red, white and blue gem features a power system made from Zero Motorcycle components and boasts an impressive rate of climb and exceptional short field capabilities. Another ultralight, the EMG-6 developed over the last few years by Brian Carpenter of Rainbow Aviation/Adventure Aircraft, will show off the REX 30 MGM-Compro motor from the Czech Republic.  The units, with their matching controllers, power dozen of different types of aircraft in Europe, from paramotors to Light …

Renewable Biomethane – an Economic Alternative?

Dean Sigler Biofuels, Sustainable Aviation Leave a Comment

Compressed natural gas (CNG) has several things going for it.  It is cheaper than gasoline or diesel fuel, has lower emissions, and for a conventional piston-engined airplane, is the equivalent of over 130 octane, far more powerful than 100-octane low lead (100LL) and cleaner burning. CNG Fuels in England CNG filling stations are growing across the country as fleet owners take advantage of the economics of converting their vehicles, but are still few and far between in the west, with the exception of California.  There are under 900 stations throughout America.  Alluring as CNG might be for drivers, pilots used to paying $5.50 per gallon for avgas should be charmed by CNG’s price of $1.00 per gallon equivalent. That is with conventional, fossil-based CNG, basically a storable version of natural gas.  That leads to its less-desirable characteristics.  First, it pollutes, too, and is a source of greenhouse gases.  Second, natural gas has a hard time overcoming its association with fracking, …