Motoczysz Wins the Isle of Man TT – Again

Dean Sigler Electric Powerplants 1 Comment

Gizmag.com reports this morning that Motoczysz (roughly, “moto-sizz”), won the Isle of Man electric Tourist Trophy race at an average speed just short of the fabled “ton,” or 100 miles per hour.  Although 28 percent shy of the best internal combustion machine’s time, Gizmag urges looking at it from the perspective that it’s been 54 years since a petrol-powered motorcycle achieved that speed. Mike Hanlon, reporting for Gizmag, notes that the bike’s 99.513 mph average demonstrates, “yet another quantum leap in electric bike performance from last year’s 96.820 mph average and the 2009 winning average of 87.434 mph.”  This had to be a bit frustrating for the winning rider, since the 100 mph average would have netted him an additional prize of 10,000 pounds sterling (about $16,000). Rider Michael Rutter and teammate Mark Miller finished 1-2 on the Portland, Oregon manufactured bikes, and one managed a 149.5 mph run through the speed traps, showing the enormous speed these bikes can …

Another Electric Lazair

Dean Sigler Electric Powerplants, Sustainable Aviation 1 Comment

Besides the incentives offered by the Green Flight Challenge and the Lindbergh Electric Aircraft Prize, a venerable institution is encouraging electric flight with a series of prizes.  The Experimental Aircraft  Associations plans on awarding $60,000 to electric flight competitors during this year’s AirVenture in Oshkosh, Wisconsin. According to EAA’s Newsline, “One entry in the EAA’s $60,000 Electric Flight Prize during AirVenture comes from a well-established design, the Electric Lazair, based on an ultralight designed more than 30 years ago by Dale Kramer, EAA 145132. Between 1979 and 1985, his company, Ultraflight, produced about 1,200 kits. Calling the twin-engine Lazair ‘an ideal vehicle for electric conversion,’ Kramer wrote that he has dabbled in trying to ‘electrify’ one several times.” Kramer recounted making several “thwarted” attempts, but shared the news of a Lazair flying in England on two Plettenberg Predator motors, as reported in this blog. Kramer said the radio-control world “has been invaluable to me in obtaining knowledge that I need to …

Electric, Small, and Challenging

Dean Sigler Electric Powerplants, Sustainable Aviation 4 Comments

Dr. Ilan Kroo, a professor of aeronautics and astronautics at Stanford and designer of the Swift ultralight hang glider, among others, has a different kind of mission – that of reshaping small aircraft for the greatest efficiency. Lessons learned from light aircraft can be applied on a larger scale – but keeping it simple and light to begin with allows less expensive learning, according to Kroo. The outline for his presentation at the fifth annual Electric Aircraft Symposium in Santa Rosa, California on April 29, 2011 is instructive. He had three major topics, all repeating the title for his talk; “Design Concepts for Small Electric Aircraft.” The first topic emphasized the word, “Electric,” the second, “Small,” and the third, “Design Concepts.” First he discussed why electric aircraft are of interest, including their environmental impact, efficiency, reliability, energy source independence, and that fact that they are scalable – the latter being important to anyone also designing lifting body airliners. Modern airliners …

Biofuels: Initiatives and Issues

Dean Sigler Diesel Powerplants, Sustainable Aviation Leave a Comment

Reports from Germany, Switzerland, and America provide an insight into the problems that come with attempting to develop biofuel alternatives to jet fuel.  While various cooperative efforts are underway to promote expanded production of these “green” fuels, several parts of the industry are having problems of their own in making and distributing those fuels. Many of Germany’s biggest airlines, research groups and biofuel producers have banded together to promote” greater development and use of alternative fuels in the commercial aviation sector,” according to Flight Global.com. The resulting organization, the Aviation Initiative for Renewable Energy in Germany (Aireg), includes Air Berlin, Condor, Lufthansa, the Munich Airport, MTU Aero Engines, Rolls-Royce Germany and EADS, a variety of universities and research institutions and fuel producers. Noting that, “This is the latest in a string of efforts across the globe to help move the production of sustainable aviation fuels from small quantities to commercially viable levels,” Aireg President Klaus Nittinger explained that although this …

Taking it to eXtremes

Dean Sigler Electric Powerplants, Sustainable Aviation 6 Comments

“If I were to make a prediction, I’d think there’s a good chance that it is not batteries. But capacitors.”  Karl Young, CEO of eXtreme Capacitor, Inc. started his presentation at the fifth annual Electric Aircraft Symposium with these words from Tesla Motor’s Elon Musk.  The reference to capacitors superseding batteries as an energy source for electric cars came from Musk’s address at the Cleantech Forum in San Francisco on 16 March 2011. Young’s talk before the April 29 gathering in Santa Rosa, California detailed the double-layer supercapacitors his company produces, and what Young feels are the advantages these have over “traditional” lithium and other batteries.  He is “trying to overcome the issues of batteries,” including, according to Young, their weight, slow charge and discharge times, their short operational lifetimes (typically 500 to 3,000 cycles), and their toxicity and flammability. Young contrasted that with the specifications for his eXtreme X-Cap™ “double-layer capacitor-based energy storage technology,” which can last through over …

Ingenious e-Genius

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

At the third annual Electric Aircraft Symposium in San Carlos, California in 2009, designers from Germany and Slovenia showed their plan for a hydrogen-powered aircraft called Hydrogenius.  Today, a newly constructed, battery-powered “e-Genius” (developed along parallel lines with Hydrogenius) will be Eric Raymond’s mount for the July 10-17 Green Flight Challenge in Santa Rosa, California.  Eric writes that “e-Genius is now flying, and has reached the required 100 mph.” Hydrogenius’s original layout, replaced for the Green Flight Challenge with a simpler lithium-polymer battery-only system.  1 – Hydrogen tank 2 – Radiator 3 – Stack Module (Hydrogen Fuel Cell) 4 – System Module (Hydrogen Fuel Cell) 5 – Power Distribution Unit 6 – LiPoly Battery to start the fuel cell system 7 – Total Rescue System e-Genius’s 60 kilowatt (80.4 horsepower) motor is claimed to be able to fly 100 kilometers (62 miles) on the electrical equivalent of a mere 0.6 liters (0.16 gallons) of gasoline, or about 392 miles per gallon.  As …

PhoEnix GFC Update

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

Jim Lee’s informative and beautifully illustrated blog features “PhoEnix with the capital E in the middle,” the motorglider he will fly in the CAFE Green Flight Challenge in July.  Electrically powered with a Krall 44 motor, it has a pointy nose and retractable gear to make it more slippery than the already high-performance Phoenix without the capital E and with a mere Rotax behind the propeller. According to Lee, the 14.5 meter (47.57 feet) modified Schempp-Hirth Discus wing is raised above the low position of the gas-powered version to make room for the electrically-retracted gear, which hides in what was originally a luggage compartment – another change from the standard Phoenix. The wing is configured to win the GFC, as is the rest of the airplane.  Lee, the U. S. distributor for Phoenix Air, says in his blog, that “the PhoEnix is purpose built for a race. A race that offers big bucks for the winner, but with a bar set so …

In my dreams I fly like a bird… Martin Wezel 1964 – 2011

Dean Sigler Sustainable Aviation 1 Comment

It takes intelligence, courage and a special spark to design, build, and test fly an airplane.  It becomes a deep loss for all in the aviation community when that spark is extinguished.  We are saddened to learn of the death of Martin Wezel in the crash of a Yuneec E1000 he was scheduled to fly in the Green Flight Challenge.  Wezel was designer and distributor of aircraft such as the Viva, a high-performance motorglider that had brought him to the attention of Tian Yu, Chairman of Yuneec International. Yu reflected on the loss of Martin in a company announcement. In Germany, his wife Petra lamented the loss of her “dear man and best friend,” and vowed to continue operating the company to which he had given his dreams of flight. The CAFE Foundation joins in mourning the passing of a dedicated and brilliant leader.

Synergy: A Practical Lightplane for the New Century

Dean Sigler Diesel Powerplants, GFC, Sustainable Aviation 1 Comment

At EAS V, Synergy Chief Operating Officer John Paul Noyes framed his presentation of the Synergy aircraft by showing a picture of a 1973 portable telephone, then comparing it to a current model.  The clunky size, heft and limited utility of the former compared with its slim, feature-laden modern counterpart tells a story of intense design improvements, quantum increases in capabilities and far lower costs for a significantly better product – something usually anticipated in the history of modern products. Along with that historically comparative pairing, though, he showed pictures of a 1973 Cessna 182 and its Lycoming engine along with shots of modern examples of the two.  Not much other than the paint scheme distinguishes today’s Skylane from its antecedent.  Following Noyes’ outlook, it’s a bit disheartening to review Wikipedia’s specifications for 182s for the past 54 years.  Little, other than the introduction of improved instruments and Omni-Vision, has changed.  Although a great deal of this is due to …

Thunderbirds Are Go With Camelina

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The Air Force Thunderbirds F-16 demonstration team will become the first Department of Defense military air show group to fly on bio-fuel when two members of the team have their craft powered by a 50-50 mix of standard JP-8 and camelina-derived bio-fuel.  The flights were scheduled to place at Andrews Air Force Base for the Joint Services Open House on May 20 and 21. The team follows two other uses of camelina in military jets: the Earth Day 2010 flight of an FA-18s (the Green Hornet) and this year’s supersonic flight on the fuel blend by an F-22.  These demonstrations exhibit the interest DOD planners are taking in finding alternative fuels. The Air Force press release makes the overall effects of such changes clear.  “The team will fly with Camelina-based hydrotreated renewable jet fuel as part of the nation’s overall strategy to reduce reliance on foreign energy and establish greater energy security through conservation and use of ‘home grown’ alternative energy sources, said …