Pipistrel Electrics in America and France

Dean Sigler Electric Powerplants, Hybrid Aircraft, Sky Taxis, Sustainable Aviation Leave a Comment

Celebrating its 30th anniversary, Pipistrel rolled out its new 801 at the UBER Elevate Summit in Washington, D. C. last week and is flying its Alpha Electro Trainer at the Paris Air Show all this week. Launching the 801 at UBER Elevate Dr. Tine Tomažič, Pipistrel’s Director of Research & Development, was a keynote speaker at the conference in Washington, D.C. on June 11, where he presented just enough to whet appetites for more on the coming 801 eVTOL design.  His final touch – presenting an ostensibly realistic recording of the 801’s sound, demonstrated how quiet the vehicle will be. That’s accounted for by the eight fans being tuned to different frequencies, cancelling each other out like the dynamics in noise-cancelling headphones.  That’s just one of the design factors in a well-integrated design.  Its integrated lift system, embedded in the craft’s wings, help mitigate noise. The specially-shaped fans will operate at relatively low RPMs, another step in reducing noise.  Conceptual …

Silent Air Taxi Competes for Commuters

Dean Sigler Announcements, Hybrid Aircraft, Sky Taxis, Sustainable Aviation Leave a Comment

A quandary is a state of perplexity or doubt, and people caught in one often devolve into depression or unhappiness.  Our quandary today comes from the announcement of the Silent Air Taxi, a fixed-wing, hybrid-powered, box-wing aircraft.  The quandary comes from whether it’s better to transport one’s self to a nearby small airport and hop on a low-slung commuter aircraft that requires only a 400-meter (1,312 feet, or about a quarter mile) runway.  Or, to call up an on-demand Urban Air Mobility device, use the urban infrastructure and hie one’s self to an Uber SkyPort or a Volocopter launch pad. Its designers, mainly from Aachen, Germany’s academia and industry, point out that in Germany about 25-percent of the population lives within 10 kilometers (6.2 miles) of the 378 small and medium-sized airports that meet the Silent Air Taxi’s takeoff requirements.   50-percent of the population lives within a 20-kilometer (12.4 mile) radius of such an airport.  If those seeking a quick …

Alaka’i Skai Levitates on Hydrogen

Dean Sigler Hydrogen Fuel, Sky Taxis, Sustainable Aviation Leave a Comment

Alaka’I is Hawaiian for “the value of leadership” according to an island management consulting firm.  The word and the company have found a home in Boston, Massachusetts, where they look over the Alaka’i Skai, a hydrogen-powered sky taxi that will offer “point-to-any-point transportation that [is] safe, simple, zero-emissions, affordable and comfortable.” Alala’i, founded by Brian Morrison, adds a hydrogen fuel cell hybrid-electric craft to the eVTOL market with a design by BMW-owned Designworks.    From above, it looks a bit like a water-skipper, probably an apt look considering its fuel.  Alaka’i emphasizes three points in its sales literature: simplicity, safety and the cleanness of its fuel and operation. With several patents supporting the aircraft the machine supports its creators’ backgrounds, including 20 years with NASA.   Alaka’I claims the fuel cells are 95-percent reusable, the remaining five percent are 99-percent recyclable, with longer duration and range than its current competitors.  Its “simple” fuel system with three separate fuel cells enables its ability …

Another Kind of Skyport for Volocopter

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Following last year’s Uber Elevate Summit, one came away with the idea that future landing areas for Urban Air Mobility vehicles would be multi-story and expansive, with connections readily available to other forms of commuting.  Volocopter, working with Skyports , has Volo-Ports coming, with the first one due to open by the end of this year.  The “stunning designs” for these landing pads will come from the agency Brandlab.   Drawings released so far show that Voloports will be simple and modular, enablihg their distribution in many locations or clustered in one centralized facility. Introduced at the Berlin Green Festival, Volo-Ports appear to be open, friendly places where one can be introduced effortlessly to the joys of taking Volocopters to distant places.  Volocopters, smaller than the planned five-passenger vehicles assumed for Uber Elevate rides, will eventually carry two, once certification requirements allow autonomous operation. The first Volo-Port, to be constructed in Singapore will open for scheduled flight trials in the second half …

A 2/3-Scale XTI TriFan 600 Hovers Successfully

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

XTI’s TriFan 600 recently flew as a TriFan 665, for the 65-percent test concept vehicle.  There are good reasons for a first flight on this reduced scale, including being able to use smaller motors and batteries, less material, and possibly simplified systems. On May 8, 2019, XTI Aircraft announced that they had successfully completed the first test flights of its 65% scale prototype of the TriFan 600 VTOL aircraft:  The 2/3 concept machine, built on the local Experimental Aircraft Association’s turf, elicits some wonder because none of the chapter’s recent newsletters or Facebook posts mentioned that this project was underway.  Having worked in a design/build architectural-engineering firm, your editor knows all too well what the phrase “confidential client” means.  Chapter 512, knowing the TriFan was on the field, held that confidentiality well.  Only XTI itself made any public pronouncements about the project. According to Transport UP, “During testing early this month, the 65% scale prototype of the TriFan 600  completed multiple takeoffs, hover, …

EHang 216 Flies a Small Crowd in Vienna

Dean Sigler Electric Powerplants, Sky Taxis, Sustainable Aviation Leave a Comment

Well, 17 passengers, anyway.  Remember that EHang flew its entire board of directors and executive team on demonstration outings in February 2018.  In a more recent flight, EHang CEO HU Huazhi “commuted” via an EHang 216 (2 passengers, 16 motors and propellers). In April this year, EHang flew apparently happy participants at Vienna’s Generali Arena as part of the 4GameChangers Festival, an international festival of – you guessed it – game changers.  This year’s theme, “Europe Meets Asia,” seemed a mild precursor to the full frontal assault by EHang.  For those not lucky enough to get first-hand experience in the air, displays in the Festival offered virtual and augmented reality demonstrations and ample digitally-based thrills.  Aviation Week reported, “An autonomous, Chinese, two-seat urban transport vehicle is not one of the most anticipated sights on the exhibition floor at EBACE (European Business Aviation Convention and Exhibition), but in the realm of UAVs, things happen quickly. EHang, one of the earliest and …

BlackBird Air, Bye Aerospace Add to eFlyer Sales

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BlackBird Air, Inc., an on-demand flight service operating out of San Carlos, California, has announced it intends to buy 100 eFlyer 4s and 10 eFlyer 2s from Bye Aerospace.  These will augment the firm’s existing fleet of Cirrus SR22s and Pilatus PC12s in providing service to its customers. As the San Francisco Chronicle explains, BlackBird has been called “the Uber of air travel,” an app-driven service that enables flights to cities like Burbank, Palm Springs and Las Vegas.  Sarah Feldberg, writing for the Chronicle, runs through the niceties of this different plane rental approach.  “The interface operates like any trip-booking app until you’ve selected your date and destination. Then, BlackBird prompts you to either join an existing flight or create your own by choosing an aircraft and departure time. For $408, you can fly a three-seater [plus pilot], single-engine Cirrus SR22 from Oakland to Tahoe City on May 24, leaving roughly whenever you’d like and arriving an hour later.”  Split …

Lilium Elevates Five-Passenger Uber-Ready Vehicle

Dean Sigler Sky Taxis, Sustainable Aviation Leave a Comment

Uber Elevate, headed toward its third annual meeting in Washington, D. C., has established guidelines for what it wants to see flying in its service.  Lilium, a German electric Vertical Takeoff and Landing maker, has flown a vehicle that seems to meet those guidelines. The web site, A New Domain.net, notes, “The authors of the Uber paper point out that the high-profile German concept, the Lilium, is a ‘push to extremely high levels of distribution while coupling the vertical lift in closely with the wing high-lift system.’ The concern here, however, is that such jet-lift approaches “will require substantially higher power for takeoff and landing, with greater challenges operating quietly within cities,” according to the Uber paper.” “From the looks of it, Lilium still looks awfully cool. Due in 2018, Lilium is an egg-shaped plane and oft noted as a key development by European Space Agency (ESA) reps. Capable of a top speed of 250mph and a range of 300 miles, it …

Eviation Alice to Paris Air Show, U. S. Certification

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

Eviation is an Israeli aircraft company which believes in giving its customers a choice.  About to be shown at the Paris Air Show in July, Eviation’s Alice will be offered with either Siemens motors or MagniX units.  Air show visitors will see the craft with three Magnix 250 motors producing 375-horsepower each.  Roei Ganzarski, MagniX CEO says “They’re going to have a fully functioning aircraft, their first of type, at the Paris Air Show.  Our propulsion system is going to be on it.” Eviation’s nine-seat Alice is a bit of a trip through the looking glass, looking like a futurist’s dream machine.  The modern tri-motor features such light construction that it can carry three tons of batteries to provide 650 mile range.  Ganzarski explains, “That means you can easily do Seattle-San Francisco or other significant-range flights.  It’s a real long-range commuter aircraft.” Why Two Different Motors? Only a few months after announcing its use of Siemens motors on its Alice, …

Go Fly’s Phase II Winners

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One complaint frequently heard is that aviation doesn’t necessarily encourage participation by women, despite historical examples from Harriet Quimby to Jeanna Yeager.   GoFly is a competition thought up by Gwen Lighter, a lawyer with degrees from Brown (summa cum laude) and Harvard (cum laude) Universities. It has a $2 million prize package backed by Boeing and others.  Ms. Lighter describes her brainchild as follows: “The $2 million GoFly competition encourages mad scientists and daredevils to come as close as possible to Star Wars’s light cycles, James Bond’s jetpack, Marty McFly’s hoverboard, or any other flying dream.” Five Phase 2 winners exemplify the open rule-book approach around which the contest is organized.  Lighter explained it two years ago in an NPR interview.  “What the device looks like and how it works is up to the innovators.  We do not mandate that it’s something you get into like a car, or something that you strap on your back, or something that you …