Continental Motors Group is expanding its family of diesel aero engines with the CD-265 and CDR-285 engines. The CD-265 is intended for fixed-winged applications while the CDR-285 is designed for rotary wing applications. As the other members of the CD-200 family, the CD-265 and CDR-285 are horizontally-opposed (boxer), four-cylinder, direct-injection,... Read more →

Parker Aerospace offering lubrication, combustion, & thermal management systems to cut aircraft engine weight, fuel consumption, and emissions

Parker Aerospace, a business segment of Parker Hannifin Corporation is introducing technologies designed to enhance the efficiency of aerospace engines in the areas of lubrication, combustion, and thermal management systems. Engine lubrication innovations include the first-time use of composite materials for engine lubrication reservoirs, deploying oil demister technology to reduce... Read more →

At the Paris air show, Airbus Helicopters unveiled the aerodynamic configuration of the high speed demonstrator it is developing as part of the Clean Sky 2 European research program. Codenamed Racer (Rapid And Cost-Effective Rotorcraft), this demonstrator will incorporate a number of innovative features and will be optimized for a... Read more →

New efficient biphasic catalytic process for conversion of biomass to dense jet-range fuels

Most current bio-jet fuels consist primarily of linear or branched chain alkanes; they suffer from low densities (~0.76 g/mL) and low volumetric heating values compared with those of petro-jet fuels. As a result, most alternative fuels have to blend with petro-jet fuels to meet the energy density requirements. Cyclic hydrocarbons... Read more →

In a large-scale test, researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR), together with Lufthansa Technik and the Bundeswehr Research Institute for Materials, Fuels and Lubricants, investigated the chemical and physical properties of particularly promising aviation biofuels. The tests were carried out in a special... Read more →

Singapore Airlines & CAAS partner on “Green Package” flights; biofuels, optimized operations and fuel-efficient A350-950

Singapore Airlines (SIA), in partnership with the Civil Aviation Authority of Singapore (CAAS), has started operating a series of 12 “green package” flights over a three-month period on its non-stop San Francisco-Singapore route. The green package flights are the first to combine the use of biofuels, fuel-efficient aircraft—SIA’s Airbus A350-900—and... Read more →

Technion team devises method for on-demand H2 production from water and aluminum for aviation applications

Aerospace engineers at the Technion-Israel Institute of Technology have developed and patented a process for on-demand hydrogen production from the reaction of activated aluminum powder and water for commercial aircraft applications. The hydrogen produced on-board during flight can be used in a fuel cell to generate electric energy for auxiliary... Read more →

Air Canada to operate biofuel flights in support of environmental research on contrails and emissions

Air Canada is participating in the Civil Aviation Alternate Fuel Contrail and Emissions Research project (CAAFCER), a research project led by the National Research Council of Canada (NRC) to test the environmental benefits of biofuel use on contrails. This project will use advanced sensing equipment mounted on a research aircraft... Read more →

A new study by a team at the International Council on Clean Transportation (ICCT) has concluded that the large-scale deployment of alternative jet fuels (AJFs) and the ability of the aviation sector to mitigate greenhouse gas (GHG) emissions through their use will be capped by a number of factors: the... Read more →

Boeing and Jet Blue back Zunum Aero, startup developing hybrid electric aircraft; focus on regional airports

Startup Zunum Aero, founded in 2013, is developing regional hybrid-electric aircraft for the early 2020s. Zunum is targeting 700 miles of range at launch to more than 1,000 miles by 2030. Zunum Aero intends for its 10- to 50-seat aircraft to enable frequent service to the nation’s network of more... Read more →

A Saab Gripen fighter has for the first time undergone a series of test flights with 100% biofuel. This demonstrates that the aircraft can be flown entirely with an alternative fuel and gives valuable knowledge for future possible use of alternative fuel. The tested fuel—Catalytic Hydrothermal Conversion Jet fuel (CHCJ-5)—was... Read more →

The Extra 330LE aerobatic plane, powered by a propulsion system from Siemens (earlier post), set two new speed records. At the Dinslaken Schwarze Heide airfield in Germany, the electric aircraft reached a top speed of around 337.50 km/h (209.7 mph) over a distance of three kilometers. The speed achieved by... Read more →

Ghent researchers develop new process to convert grass to drop-in hydrocarbon decane

Researchers at Ghent University have developed a process that turns grass into the hydrocarbon decane via a lactic acid intermediate. The process was the basis for the doctoral dissertation of Way Cern Khor. To improve the biodegradability of grass, pretreatments such as extrusion and calcium hydroxide pretreatment were performed; efficiencies... Read more →

The US Department of Energy’s Bioenergy Technologies Office (BETO) has published a report titled Alternative Aviation Fuels: Overview of Challenges, Opportunities, and Next Steps. The report provides an overview of the current state of alternative aviation fuels, as reported in findings by recent working groups, and also presents findings from... Read more →

California ARB staff considering including alternative jet fuel in Low Carbon Fuel Standard

The staff of the California Air Resources Board (ARB) staff is considering including alternative jet fuel (AJF) in the Low Carbon Fuel Standard (LCFS). ARB staff is hosting a public working meeting today to consider the matter. In 2009, the ARB approved the LCFS regulation to reduce the carbon intensity... Read more →

NASA-led study finds 50 vol% biofuel blend reduces soot particle emissions during aircraft cruising; reduced climatic impact of contrails

A 50:50 by volume blend of conventional Jet A aviation fuel and an aviation biofuel made from Camelina reduces soot particle number and mass emissions from the aircraft by 50 to 70% compared to conventional fuel, according to a new study published in the scientific journal Nature. The findings are... Read more →

The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and the Brazilian aerospace agency Agência Espacial Brasileira (AEB) have successfully completed the first burn tests for two newly designed injection heads enabling the development of a new rocket that is fueled with oxygen and alcohol. The final injection... Read more →

An electric-drive Extra 330LE aerobatics plane recently set a world record in ascent in the category of “Electric aircraft weighing up to 1,000 kilograms. The pilot reached an altitude of 3,000 meters in only four minutes and 22 seconds, beating the previous record by one minute and 10 seconds. The... Read more →

US DOD to award $55M for advanced drop-in biofuels production; 10M gallons/year

The US Air Force Research Laboratory, Materials and Manufacturing Directorate (AFRL/RX) has issued a funding opportunity (FOA-RQKM-2017-0006) for up to $55 million to design, retrofit, construct, operate, validate and qualify domestic, commercial-scale, an integrated biorefinery(s) capable of producing bio-equivalent fuels suitable for military use with a rated capacity of at... Read more →

Port of Seattle, Boeing and Alaska Airlines release aviation biofuel infrastructure findings

​The Port of Seattle, Boeing and Alaska Airlines released a first-of-its-kind study that identifies the best infrastructure options for delivering aviation biofuel to Seattle-Tacoma International Airport. In pursuit of its goal to power every flight at Sea-Tac with sustainable aviation biofuel, Sea-Tac is among the first airports in North America... Read more →

DOE awards LanzaTech $4M for low-carbon jet & diesel demo plant; 3M gpy; Audi evaluating fuel properties

LanzaTech has been selected by the Department of Energy’s Bioenergy Technologies Office (BETO) to receive a $4-million award to design and plan a demonstration-scale facility using industrial off gases to produce 3 million gallons/year of low-carbon jet and diesel fuels. The LanzaTech award was one of six totaling $12.9 million.... Read more →

Researchers in China have developed an integrated two-bed continuous flow reactor process for the direct synthesis with high carbon yields (~70%) of dodecanol (C12H26O) or 2,4,8- trimethylnonane (C12H26O2)—a jet-fuel-range C12 branched alkane—from methyl isobutyl ketone (MIBK), which can be derived from lignocellulose. The dodecanol as obtained can be used as... Read more →

Growth in greenhouse gas (GHG) emissions from shipping and aviation, based on demand for liquid fossil fuels, will undo nearly half (43%) of the savings expected to be made by the rest of transport in Europe through to 2030, according to a new study by consultant CE Delft, commissioned by... Read more →

Engineers at NASA Glenn are testing a new boundary layer ingesting (BLI) inlet-fan combination—the first of its kind ever to be tested. Originally conceived of as a propulsion system for generation-after-next (N+2), the BLI system could increase fuel efficiency by 4-8% more than the advanced engines airlines are beginning to... Read more →

WSU Tri-Cities researchers receive $50K NSF grant to test market potential for lignin pathway for biojet

Researchers at Washington State University Tri-Cities have been awarded a $50,000 National Science Foundation I-Corps grant to explore the commercialization potential of their new pathway for biojet from biomass waste. The WSU process, described in a 2015 paper in the RSC journal Green Chemistry, uses hydrodeoxygenation (HDO) of dilute alkali... Read more →

Researchers at Washington State University have developed a novel route for the production of jet fuel range alkanes at high carbon yields from plastics. The process combines catalytic microwave-assisted degradation of low-density polyethylene (a model compound of plastics waste) followed by hydrogenation. In a paper published in the journal Fuel,... Read more →

BP takes $30M stake in Fulcrum Bioenergy; 500M gallon renewable jet offtake agreement

Fulcrum BioEnergy and BP signed a major strategic partnership that includes a $30-million equity investment in Fulcrum by BP. With Fulcrum’s first plant under construction, this partnership accelerates the construction schedule for Fulcrum’s next renewable jet fuel plants. Fulcrum and Air BP, the aviation division of BP, have also agreed... Read more →

Scientists at Imperial College London have demonstrated a highly efficient inductive method for wirelessly transferring power to a drone while it is flying. Theoretically, this wireless power transfer (WPT) technology could allow flying drones to stay airborne indefinitely by simply hovering over a ground support vehicle to recharge. The team... Read more →

NASA is developing and validating a system that will allow part of an aircraft’s wing to fold in flight to increase efficiency through wing adaptation. Engineers at NASA’s Armstrong Flight Research Center in California, Langley Research Center in Virginia, and Glenn Research Center in Ohio, are working on the Spanwise... Read more →

Engineers at the NASA Electric Aircraft Testbed (NEAT) at NASA Glenn Research Center ran the new facility’s first test in September. Dr. Rodger Dyson, NASA Glenn Hybrid Gas Electric Propulsion technical lead, and his team used 600 volts of electricity and successfully tested an electrical power system that could realistically... Read more →

New three-step process for conversion of vegetable oils into cycloparaffinic and aromatic biofuels in jet fuel range

A team from the University of Science & Technology of China in Hefei has developed a three-step process for the conversion of vegetable oils (triglycerides) into cycloparaffinic and aromatic biofuels in jet fuel range. This process cracks vegetable oils into light aromatics over the zeolite catalyst (HZSM-5(80)), followed by the... Read more →

Gevo produces first cellulosic renewable jet fuel specified for use on commercial airline flights

Gevo, Inc. has completed production of the world’s first cellulosic renewable jet fuel that is specified for commercial flights. Gevo successfully adapted its patented technologies to convert cellulosic sugars derived from wood waste into renewable isobutanol, which was then further converted into Gevo’s Alcohol-to-Jet fuel (ATJ) fuel. (Earlier post.) This... Read more →

ICAO agrees to market-based measure to address aviation CO2

The UN International Civil Aviation Organization (ICAO) has agreed to recommend adoption of a final Resolution text on a new global market-based measure (GMBM) to control CO2 emissions from international aviation. ICAO’s Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) is designed to complement the basket of mitigation measures... Read more →

A new report from the International Council on Clean Transportation (ICCT) identifies significant potential to reduce aviation emissions through emerging fuel efficiency technologies. The study summarizes the results of the first independent, bottom-up cost assessment of near- (2024) and mid-term (2034) technologies to improve new aircraft fuel efficiency. Carried out... Read more →

The US Navy has completed flight testing of a 100% advanced biofuel in the EA-18G “Green Growler” at Naval Air Station Patuxent River, Maryland. The US Navy is a leader in incorporating alternative fuel into operational supplies, in order to increase mission capability and flexibility. The catalytic hydrothermal conversion-to-jet (CHCJ)... Read more →

JetBlue enters 10-year renewable HEFA SPK jet fuel purchase agreement with SG Preston; 33M gallons of 30% blend per year

JetBlue announced a ten-year renewable jet fuel purchase agreement with SG Preston, a bioenergy company. The airline will purchase renewable jet fuel made from rapidly renewable, bio-based feedstocks that do not compete with food production. This marks one of the largest renewable jet fuel purchase agreements yet, and the largest,... Read more →

In a milestone for the low-carbon fuel project, LanzaTech has produced 1,500 gallons of jet fuel from waste industrial gases from steel mills via a fermentation process for Virgin Atlantic. Virgin Atlantic and LanzaTech have been working together on the project since 2011. HSBC joined the partnership in 2014. The... Read more →

Researchers from Zhejiang University; SINOPEC’s Fushun Research Institute of Petroleum and Petrochemicals; Nanjing Tech University; and Xinjiang Technical Institute of Physics and Chemistry have developed an “atom-economic” approach to produce renewable drop-in aviation-range hydrocarbons and aromatics from oleic acid (C18H34O2, a fatty acid that occurs naturally in various animal and... Read more →

Researchers at MIT have produced the first assessment of the annual costs of IQ losses from aircraft lead emissions in the US. Their study, published in the ACS journal Environmental Science & Technology, found that that atmospheric lead pollution attributable to leaded aviation gas (avgas) contributes to US$1.06 billion (the... Read more →

With funding from Bioenergy Technologies Office (BETO), Pacific Northwest National Laboratory (PNNL) has been working with industry-partner LanzaTech to convert alcohols derived from captured carbon monoxide, a byproduct in the production of steel, into synthetic paraffinic kerosene, a non-fossil-based jet fuel. The technology not only provides a viable source of... Read more →

The Solar Impulse 2—the solar airplane that recently completed a round-the-world flight—used batteries from Kokam, based on that company’s advanced Ultra High Energy Lithium Nickel Manganese Cobalt (NMC) Oxide (Ultra High Energy NMC) technology. The Solar Impulse uses four 38.5 kWh Kokam Ultra High Energy NMC battery packs—one in each... Read more →

Researchers from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, have developed a new route for the synthesis of jet-fuel range C10 and C12 cycloalkanes using diacetone alcohol (the self-aldol condensation product of acetone under mild conditions)—which can be derived from lignocellulosic biomass—and hydrogen. A paper on their... Read more →

Tufts team finds aviation impact on particle number concentrations downwind of airport; correlation with flight activity

Jet aircraft emit ultrafine particles (UFPs; aerodynamic diameter of <100 nm) at high rates. In a study with implications for populated areas near airports, a team from Tufts University in Boston has found that the impact of aviation on ambient ultrafine particle number concentrations (PNCs) extend many kilometers downwind of... Read more →

A team from MIT and Saab AB has found a way to bond composite layers in such a way that the resulting material is substantially stronger and more resistant to damage than other advanced composites. Their results are published this week in the journal Composites Science and Technology. The team... Read more →

The Obama Administration has released the Federal Alternative Jet Fuels Research and Development (R&D) Strategy (FAJFS), which maps out a unified federal plan to advance R&D as well as science and technology solutions to support deployment of alternative jet fuels (AJFs) in both civil and military aviation. The strategy provides... Read more →

Orbital ATK and ECAPS partner on high performance green propulsion system; bringing LMP-103S to market

Orbital ATK signed an agreement with leading European green propulsion technology firm ECAPS to develop, demonstrate and market a high performance green propulsion (HPGP) system. The HPGP system, which offers significant cost advantages and reduces the environmental risks associated with traditional monopropellants, is aimed at both attitude control and main... Read more →

Biojet fuels will be key to achieving the aviation industry’s pledge to cut CO2 emissions to 0.2 billion tons (GT) in 2050—half the 2005 figure—as opposed to the staggering 2.1 GT projected by current growth rates, according to a new report from Lux Research, “Biojet Fuel Technology Roadmap.” Lux forecasts... Read more →

Boeing, South African Airways (SAA) and low-cost carrier Mango celebrated Africa’s first passenger flights with sustainable aviation biofuel. The flights coincided with Boeing’s 100th anniversary and centennial celebrations worldwide. The SAA and Mango flights carried 300 passengers from Johannesburg to Cape Town on Boeing 737-800s using a blend of 30%... Read more →

GE Aviation will enter the Farnborough Air Show on Monday with a wave of new product and technology introductions while expanding its factory network to deliver on a record $154-billion industrial backlog of product and services. From running the first full GE9X engine for the Boeing 777X (earlier post)—fired more... Read more →

European ultracapacitor manufacturer Skeleton Technologies will join French firm Flying Whales’ program to build a 60-ton Large Capacity Airship (LCA60T, for the global transport market. Skeleton Technologies will join the program to help design and build hybrid propulsion for the LCA60T’s electric power systems. Average operational power is expected to... Read more →