Electric aircraft may still have minuscule market share but innovations could change that in the near future. As Aero correspondent, Roy Beisswenger wrote, “This is a rapidly changing technology with both motors and applications showing up all over Aero Friedrichshafen.” This year Aero management concentrated them in one of the big halls where small startups to the heavyweights were located. Thanks to Roy for several reports from Aero, of which this is one. —DJ
Many of the exhibited motors are for very light applications such as light-weight shift control trikes or gliders but motors are becoming more powerful. With an increase in power, new technical problems need to become overcome. For example, the larger the power capability of the motor, the more cooling is required for the motor. Smaller motors are mostly air-cooled, but some of the medium and larger motors require liquid cooling. This doesn’t mean that the motors have radiators, but liquid is built into the motor to help wick heat away from hot spots that are created when electricity is converted to mechanical power.
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es-Electric Sports — eLift electric propulsion
Some of the very lightest aircraft at the huge Aero Friedrichshafen 2013 event were those for hang gliding or light trike flying. They were also electric powered, proving again the idea that lightweight flying machines can employ electric power today. In this video we look at several variations on the theme and hear about special features to make electric power work.
Charging Back into the Lead — Flight Design ga’s F2 and F2e Light-Sport Aircraft (Gasoline or Electric)
Once upon a time in the then-new world of Light-Sport Aircraft Flight Design lead the pack for airplanes delivered and registered. That #1 ranking lasted for a decade.
Then came a pause in the juggernaut that is Flight Design, a German company with a popular design. The company’s expenses outran their revenues and a major restructuring was forced upon them by the German legal system. This was 2015 but at Aero Friedrichshafen 2019, the company was looking strong. Their prominent space in Aero’s huge gymnasium-sized exhibit halls was filled with interesting machines, including the distinctive Horten flying wing.
All these today operate under the parent name, Lift, which also acquired the Rotorvox deluxe gyroplane.
Attracting a lot of attention was their brand-new F-series. Displayed as the first aircraft visitors saw, F2 is an evolved version of the company’s successful CT-series, which remains in active manufacturing.
Aero Friedrichshafen Day 3: ELECTRIC, Hybrid on Tecnam and Comco – Battery on Horten and Bristell
More from Aero as Day 3 closes. Because of the number on display — and because several readers asked — this post will focus on electric propulsion in two distinct forms. Whatever you think about electric as a means of lifting aircraft aloft, escaping its approach appears impossible. Experimentation is happening in all quarters. The following review is far from exhaustive; many other examples could be found at Aero Friedrichshafen 2019.
Most agree that batteries are the weak link in the chain and despite repeated promises of annual increases in energy density of 5-8%, it hasn’t happened over ten years I’ve followed this fairly closely. That does not preclude certain effective uses, for example, local area primary flight training or aerobatic flying. Yet flying cross country on batteries remains somewhere in the future. Nonetheless, projects abound and solutions may be upon us. Here’s what I saw today.
Hybrid Power from Tecnam, Rotax, and Siemens — I had no choice but to drop big names because these three powerhouses are joining forces on a hybrid system.
Sun ‘n Fun Day 4 — Rans Outbound Tricycle, Amphibious Trikes, Electric Powered Paraglider
Sun ‘n Fun streaks on with Blue Angels and Stearmans cracking the air. Exhibits are active. People are shopping for the right airplane. Strong crowds were present at peak times. Opening day may have set a record. Generally vendors and customers seemed to be in good spirits. Recreational aviation looks healthy.
As I spoke with vendors, one comment I heard repeatedly — freely offered but never requested — was “The economy is good. People have money to spend.” This statement came up often enough to give it weight.
Those of you shopping at home can have a little fun with PlaneFinder 2.0. Clicking or tapping a few categories will help you zero in on the best choices for you. Then you can click to articles or videos about them.
Outbound — Rans has enjoyed quite a run with their newest, the S-21 Outbound. It is a handsome taildragger with performance to make STOL designs jealous.
Electric Experimentation Grows; LSA and Ultralights Will Succeed First
As the world appears to shift into overdrive about electric cars, planes, and drones, what is happening in this dynamic, unfolding sector in aviation?
Recent news from Pipistrel spoke to their continued development of their Alpha Electro. This Slovenian company has long pursued this and may be leading in commercialization but — as with electric autos — this remains a minuscule part of total sales. However, it attracts outsized attention from mainstream media, regulators, and others.
Recently, my friend and LAMA Europe associate, Jan Friedrich, alerted me to a new success story.
The Skyleader company is somewhat known in the USA although perhaps by their earlier name Kappa. The more correct name was and is Jihlavan Airplanes but Skyleader is a better marketing name.
Americans have seen examples of the company’s top-of-the-line Skyleader 600 — here’s our video review of the model — but sales have not taken off in this country.
Sleek, Sexy Electric Light-Sport Seaplane
AirMax SeaMax — Icon A5 — Vickers Wave — MVP — Lisa Akoya… you only need look at the best promoted brands to see that arguably the most innovative ideas in light aircraft are coming from the LSA seaplane sector. Each of these is a great example of visionary engineering.
Others LSA or light kit seaplane developments — Searey, Mermaid, ATOL Avion, Aero Adventure, among others — are somewhat more conventional but that’s reassuring to some potential buyers. All these names have one enormous advantage. They have practical field experience. Of the five in the first paragraph, only SeaMax has a longer period of use by owners in regular operation.
Now consider Equator Aircraft P2 Xcursion, an electric hybrid seaplane with several compelling ideas. I wrote about this in an article two years ago; now we have an update.
Swan Ultralight Goes Both Ways: Electric & Gas
In my views of Swan at previous Aero Friedrichshafen shows, the design caught my eye as it was (a) a single seater, (b) light enough to qualify as a Part 103 ultralight or its European equivalents, and (c) as it was an all-composite, nicely designed aircraft. Commonly, Part 103-capable designs are much more basic to remain within the tight limits. This statement also applies to the German 120-kilogram category or to Britain’s Single Seat DeRegulated (SSDR) description.
As Aero contributor and Powered Sport Flying publisher Roy Beisswenger and I frequently discuss, the most likely place for electric propulsion to work today is in ultralights. This is because in very light aircraft with more local flying missions, battery weights for a modest period of flying (30-60 minutes) is already achievable in the very lightest of powered aircraft. We have been discussing this with FAA for more than three years.
Electric Power — Chip Erwin’s new development (4/15)
Electric aircraft are a major buzz with even aviation gian Airbus working on their eFan. That’s still years away and will surely be expensive. However, SportCruiser developer Chip Erwin has an all-new motor with specially adapted battery. The details should impress you and he is also developing new single place airplanes — that he calls PSA or Personal Sport Aircraft — which will be powered by the new electric propulsion.
Racing Down Electric Avenue … Here Comes Airbus
At the recently concluded Palm Springs Expo, a keynote address was provided by George Bye, the man behind the Sun Flyer project that aims to put electric two seaters into flight schools. Pipistrel is already selling into this market with its Electro (video) and while only a small number of aircraft are in use, the race is on for more … much more.
Airbus made big news back in July when a race developed to see who would cross the English Channel first in an electric powered airplane. Of course, the whole thing was a bit moot because it had been done years before. Longtime electric pioneer Eric Raymond of Sunseeker Duo noted, “It was already done in 1981 by the Solar Challenger, which flew from Paris to London at 14,000 feet. [Famous hang glider pilot and manufacturer Gerard] Thevenot even flew an electric trike across.
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