I’m always impressed with good turns of phrase and cleverly-worded presentations. Given that I am a writer, I suppose that doesn’t surprise you. However, I am even more impressed when someone can present a concept in such clear language that everyone gets it right away. Following is such a story.
My longtime friend and fellow board member, Tom Peghiny, participated in our annual Light Aircraft Manufacturers Association board of directors meeting at EAA AirVenture Oshkosh, where EAA kindly provides a quiet, air-conditioned space for our group to meet.
LAMA has four initiatives that the association is pursuing*. One of them is trying to break the logjam of electric propulsion
In an FAA-organized gathering on this and other subjects at AirVenture 2014, industry experts observed that FAA never intended to block electric power. Agency rulewriters were intent on preventing use of turbine engines on LSA so the regulation specifies reciprocating engines only, effectively blocking electric power even if doing so was never the goal.
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Sleeker Is Better In Electric-Propelled Aircraft
If you’ve been following exciting developments like the Airbus/Pipistrel/Cri-Cri English Channel crossing, or for that matter any of the electric airplane developments, you should know that the ideal electric-powered aircraft today are the very lightest weight machines.
However, another quality is just as important while we wait for scientists to significantly amp up the energy density of batteries. That quality is sleekness and I’ve been watching a Norwegian project from Equator Aircraft. Airplanes don’t get much sleeker than this.
If it needed to be even more intriguing, consider that this project comes from a team that has also been involved with seaplanes, so how about a two-seat electric seaplane? OK, it isn’t ready yet but this is one I will continue to follow closely. Following is some detail on this fascinating entry that again suggests the tip of the spear in LSA design seems intently focused on seaplanes.
Equator’ Aircraft P2 Excursion (abbreviated EQP2) is envisioned as a performance hybrid amphibian aircraft.
Lightplane Electric Power … Pure or Hybrid?
With our friends at the prestigious Flying magazine putting Airbus’ E-Fan on their July 2015 cover, flanked by a major story inside, it seems everyone is following electric propulsion ever more closely. We’ve been doing it for a while as light aircraft are clearly the first place where electric power is best applied. Airbus may be planning an electric airliner but I don’t expect to see that anytime soon. Meanwhile the giant builder of airliners is indeed pushing forward with a two-and four-seat E-Fan.
However, I see another use of electric motors that strikes me as very compelling, and in the very near term. I wrote about a Spanish project earlier and here is another.
Many years ago when I was a young flight instructor, I dreamed up an idea called JERA, the Johnson Emergency Rocket Assist, born out of a small rocket engine that some gearheads were applying to go-carts on steriods.
Add-On Electric Motor Emergency & Boost Power
A few years back at Aero 2009, Flight Design and Rotax teamed up on a very interesting project. Based on the R-912 engine they added an optional electric motor that could provide additional torque (a characteristic electric motors have in abundance) for takeoff and climb or for emergency power in the event of a failure. The idea more than intrigued me and many others but it quietly disappeared.
Recently a Spanish university announced it had taken this concept to the next step. The team investigating this seemed focused on the emergency factor but opened the door to combined used of electric motor and gasoline engine. In case of a conventional engine failure, while very unlikely, an electric motor can, they said, deliver another 20 kilometers or 12.5 miles of range. That would be a literally saving grace to the pilot and occupants of a troubled aircraft.
Researchers at Universidad Carlos III de Madrid (UC3M) and the Axter Aerospace firm developed an electric propulsion system to install in light aircraft to deliver extra power and range in emergency situations.
Electric Flight Events to Advance State-of-the-Art
A new season of airshows is about to erupt now that April has arrived. Among all the gasoline-powered aircraft that show visitors can see will be a growing collection of electric aircraft. As I often repeat, the pioneering development of electric propulsion will come first in light aircraft … at least until batteries go through a major breakthrough in energy density, as today’s best cells still weigh far too much for larger aircraft to use them effectively.
First up, in mere days, is the e-flight-expo, organized in cooperation with Flying Pages, the company operated by European publisher Willi Tacke who is well known for his Directory of Leisure Aviation.
Aero officials said “e-flight-expo will again be a major section at Aero Friedrichshafen 2015.” They note that as in other industries such as automobiles and drones, electric power continues to gain in importance in the man-carrying aviation sector.
Affordable EMG … Electric Motor Glider
Update 8/8/14 — See our video interview about EMG at the end. An unpowered EMG — or Electric Motor Glider — from Adventure Aircraft has already taken 400 flights; it has also been fitted with a small electric motor … complete with carbon folding prop. A new Experimental Amateur Built (EAB) two seater is now taking shape and both variations were on exhibit at AirVenture 2014 in the newly named Fun Fly Zone (formerly Ultralight Area). EMG’s spark is provided by the dynamic duo of Brian and Carol Carpenter of Rainbow Aviation, well known for their LSA maintenance courses including the LSR-M (Light-Sport Repairman Maintenance) credential that has prepared many mechanics to do serious work on the growing fleet of LSA. EMG builder Adventure Aircraft is a subsidiary of Rainbow. Evidently this hard working pair aren’t fond of wasting many hours with something so mundane as sleep because the project is unfolding quite swiftly.
Electric Skyway — Flying GreenWing’s eSpyder
I was a little nervous, I admit. Oh, I wasn’t worried about flying the eSpyder as an airplane. Many years ago I logged plenty of hours in a Flightstar single place ultralight and this was essentially the same airplane. Except it wasn’t identical; this one was powered by an electric motor and it’s funny how that changes everything. Like most of you, I only have experience with gasoline engines (though I have logged many hours of soaring time with no engine whatsoever). So, I have the usual set of knowledge and reflexes about fuel consumption, engine noise, power settings, climb rates … and the sounds of all these things. It’s all different on an electric airplane. Much as I had awaited this opportunity, I found myself apprehensive about the new experience. I’ve had three two-stroke engines go silent on me and I simply didn’t know exactly what to expect from an electric motor.
New Manufacturer of Electric Aircraft
Once upon a time the light aircraft industry announced new manufacturers and models at the rate of two, three, or even more every month …for several years. As with every maturing industry before, this torrid pace had to slow. Yet the party isn’t over, far from it. Contrarily, I am aware of several new projects in the works and we all know of some (Icon, Terrafugia, Lisa among others) where companies have been working on their designs for some years but they have yet to secure FAA approval as a Light-Sport Aircraft. Neither has GreenWing International, a new company announced this week though that may change quickly enough.
“Yuneec International, a world leader in electric power systems, is proud to announce the formation of GreenWing International, [which is] entirely focused on bringing the revolution of electric power to the global general aviation market,” announced company CEO Tian Yu. Enthusiasts following electric powered aircraft development first saw Yuneec’s e430 at AirVenture 2009.
Electric-Powered Light Aircraft
Flying with Juice
As an airplane approaches, a whirring sound accompanied by a
barely discernible whine and a mild propeller buzz exhibit a
Doppler effect as the plane passes overhead. What is that curious noise?
We are intimately attuned to internal combustion engine sounds –
some experts claim they can identify the brand and size of an engine
simply by listening to it run. We’re less aware of electric motor noises
because we quickly tune them out. Electric motors run everywhere in
our lives – in our refrigerators, our computers, in our ceiling fans, and
numerous other appliances. Most motors – it’s incorrect to call them an
“engine” – are exceptionally quiet, and that’s a good thing.
One wonders if relatively quiet electric motors on aircraft will invade
our piston-powered world, especially given noise sensitivity at many airports.
Some say, “We’re about to see if electric works.” I say, “We’re seeing
it right now!”
Two years ago, I wrote about ultralights – literally Part 103-compliant
ultralights – operating remarkably well on electric power.1 In the ensuing
months, more projects have been announced.
Electric Flight: More Thoughts
Yesterday a reader commented on my electric flight post, specifically about the LZ FES, a pretty sexy add-on that just won the Lindbergh LEAP prize for best new electric propulsion system. He wondered whether electric flight for now required light weight motorgliders or whether heavier, 15M plus sailplanes/motorgliders would be workable for electric power. *** My answer began to get too lengthy to stick in comments so I’m posting it here, and thanks Thomas for your enthusiasm. *** I talked over this very subject this week with Randall Fishman, the award-winning electric flight pioneer. His take on where we’re at right now is in my Profiles in Vision column, coming in the July issue of P&P. *** Randall’s whole trip is to get people up in the air with electric power right now, and not for 150,000 clams either. To summarize his own one-man research and development plan, it’s all about lightweight motorgliders.
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