Green Options

The European Union (EU) released a 94-page list of airlines that must reduce their emissions or will be banned from European airports two days ago. These are airlines of various sorts from all around the world. Some top players include United Airlines, US Airways, and the US Navy.

At the U.S. Air Force Academy in Colorado Springs, cadets are working on a new wing design for the KC-135 Stratotanker that could significantly increase fuel efficiency for the venerable aircraft.  Illustrating how small changes can make a big difference, the secret is in subtle, almost invisible adjustments to the wingtips, using wing designs from other aircraft as a template.  As for concentrating on the rather unglamorous Stratotanker, it makes perfect sense to put some extra energy into designing an aerial refueler that delivers more fuel and consumes less, especially with the development of new sustainable energy sources in view.

Earlier this week, the world’s first piloted aircraft powered solely by hydrogen fuel cells, took to the skies above Hamburg Airport, Germany, producing zero carbon dioxide emissions.

The Antares DLR-H2, jointly developed by the German aerospace centre DLR, Lange Aviation, BASF Fuel Cells and Denmark’s Serenergy, has a range of 750km (390nm) and can stay airborne for 5 hours at top flying speeds of about 90kt (170km/h).

According to DLR, a main hurdle was improving fuel cell performance capabilities and efficiency to such an extent that the motor glider could take off using fuel cell power alone. DLR’s Johann-Dietrich told reporters, “This enables us to demonstrate the true potential of this technology.” (see more pictures after the jump).

First we had electric trains. Then electric cars. Now, airplanes.

Sonex, a national leader in providing affordable high performance kit aircraft, is developing a concept Waiex E-Flight Electric-Powered plane.

I caught up with Mark Schaible, Marketing Director for Sonex, at the Experimental Aircraft Association (EAA) AirVenture last year, the largest aircraft event on the planet. The EAA AirVenture is held in July and early August every year in Oshkosh, Wisconsin, at the Wittman Regional Airport.

“That’s our goal,” says Schaible, surrounded by the entire family of kit aircraft, including the Sonex Sport Trainer, Sonex Sport Acro and Xenos Sport Motorglider.  “Keep ahead of the marketplace with an electric airplane.  Someone is going to do it, so it might as well be us. We have made a lot of progress and are working very hard toward first flight [with our Waiex E-Flight Electric Powered aircraft].”

Yet another product has been added to the list of new and innovative things we can make from corn. Recently, Dupont Tate & Lyle Bio Products announced that, working in conjunction with Kilfrost, a major producer of de- and anti-icing fluids for aircraft, they have come up with a new de-icer derived from non-petroleum sources – namely, corn and sugar.

Spain’s sleek new high-speed trains have stolen hundreds of thousands of passengers from airlines over the last year, slashing carbon emissions and marking a radical change in the way Spaniards travel.

Passenger numbers on fuel-guzzling domestic flights fell 20% in the year to November as commuters and tourists swapped cramped airline seats for the space and convenience of the train, according to figures released yesterday.

High-speed rail travel - boosted by the opening of a line that slashed the journey time from Madrid to Barcelona to 2 hours 35 minutes in February - grew 28% over the same period. About 400,000 travellers shunned airports and opted for the 220mph AVE trains.

Last year’s drop in air travel, which was also helped by new high-speed lines from Madrid to Valladolid, Segovia and Malaga, marks the beginning of what experts say is a revolution in Spanish travel habits.

Aviation company to test biofuel next month using oil from jatropha trees

By Alok Jha (The Guardian) - Boeing and Air New Zealand will fly a jumbo jet powered partly by biofuel next month, the two companies announced on the 13th.

An Air New Zealand jet will leave Auckland on December 3 with a 50-50 mix of jet fuel and oil from jatropha trees, in one of its four engines on a flight designed to show that jatropha biofuel is suitable for use in aviation as well as economical to produce.

“This flight strongly supports our efforts to be the world’s most environmentally responsible airline,” said Rob Fyfe, chief executive of Air New Zealand. “Introducing a new generation of sustainable fuels is the next logical step in our efforts to further save fuel and reduce aircraft emissions.”

Two low-flying unmanned aircraft are cruising over Greenland this month to closely observe the melting of the Greenland Ice Sheet and its potential contribution to global sea level rise in the coming century. The flights will help scientists determine whether the ice sheet’s melt rate will accelerate in the future.

The drones are flying out of Ilulissat, half way up Greenland’s west coast, for three weeks through the end of this month. Scientists studying the rapidly vanishing Greenland ice sheet need to fill gaps in their data that was collected through satellite imagery.

Continental Airlines, Boeing, and GE Aviation have scheduled a biofuel test flight for early 2009, citing the desire to identify sustainable fuel alternatives for the aviation industry. Continental may be the first US carrier to do so and, in the words of president and CEO of GE aviation, is “taking an important step in advancing the use of sustainable biofuels in aviation.”

The three companies are working together to identify a non-food based, second-generation biofuel that won’t significantly impact forests or water resources. No details on the fuel are available, but it will have to be production ready in quantities sufficient to power the test-flight and mix seamlessly with kerosene aviation fuel (Jet-A).

Airbus beat Boeing to the punch and flew the first commercial aircraft using an alternative fuel in one engine. The really interesting thing is the two airlines are using different alternative fuels in their test flights.

Boeing announced in January they would test an alternative fuel in one engine of a 747, but did not disclose what that fuel would be. They did, however, talk a great deal about an algae-derived fuel, without being [...]

Commercial aviation is coming under increasing environmental pressure due to its high emissions, noise and rapid growth. Militarily aviation in Switzerland is now starting to feel some of the same pressures.

Swiss hotel owner and environmentalist Walter Knutti has become tired of the noise and concerned by unnecessary emissions from military aircraft on training flights from the nearby airbase of Meiringen. Taking action, Knutti has collected enough signatures to force the issue to a popular vote - under the Swiss system of direct democracy voters have a right to challenge parliamentary laws or pass constitutional amendments by collecting a minimum number of signatures to force a ballot.

Under Knutti’s initiative, Swiss voters will decide next month if military jets should be banned from tourism zones.