Business Aviation
Article | December 28, 2021
There’s been a lot of talk lately about airlines around the world beginning to favor smaller aircraft. Not just amid the pandemic but for the foreseeable future as well. The debate was given fuel when Lufthansa’s CEO made comments about potential down-gauging of its fleet ahead. But have we really entered the era of smaller airplanes for good?
Many have argued that even when demand for air travel does return there will be less of it overall because of a precipitous and permanent drop in business travel. And beyond that, even where demand does exist, it will be for convenient, point-to-point service, not on A380s via big hubs – as smaller planes emerge that are capable of flying farther and people shy away from big, crowded airports and the hassle of connecting. All of which calls for smaller planes. I’ve argued recently that this seems a little hasty. Nevertheless, the jury is out, and as they say – only time will tell.
Have smaller planes taken over flying?
One thing we can look at is whether the notion that smaller planes rule the day holds true at major airlines right now. And pulling some Flightradar24 data we can see that this has been happening – mostly. The headline takeaway seems to be that bigger planes do still have their place, but for obvious reasons smaller wide-bodies have proven more desirable on many global routes during the past year.
Lufthansa dropped its Very Large Aircraft quickly
If we look at Lufthansa’s data, the trend is very clear right from the beginning of the pandemic. The A380 and the 747s (both -400 and -8I) took a definitive hit beginning in March 2020. That was it for the A380 and the 747-400 for good, it seems. The small rebound in A380 flights recorded in recent months were storage-related. And since the pandemic started, it’s clear that the smaller A330 has been clearly favored, taking up nearly double the percentage of flying it had at Lufthansa pre-pandemic.
What’s most interesting here is that the 747-8I did come back, in some weeks to pre-pandemic levels. That’s quite a big plane. It is probably hard to fill these days. But it is Lufthansa’s flagship now – it has a First Class cabin and it can carry quite a bit of cargo. As a result it kept flying for a while on the bigger US routes like LAX. However recent dips in demand, and the winter season, saw the smaller and more fuel-efficient A350 come in to replace it on many routes. As I write this the Lufthansa 747-8I is in flight on just two routes – Mexico City (MEX) and Buenos Aires (EZE) to Frankfurt (FRA).
If I were to take a guess, I’d say we continue to see the 747-8I for some time on these bigger routes and in busier seasons. It may turn out to be one of the last options for passengers to fly a 747 a few years from now. Eventually, though, the more efficient 777X will replace it. Though Lufthansa has said it’s looking to shift to smaller airplanes overall, the 777X seems a natural fit for its big hub to hub routes. I don’t think we’ll see a day when the A350 is the largest plane in Lufthansa’s fleet – at least as long as Germany remains Europe’s largest economy.
Delta favors smaller, but only by a little bit
If we look at Delta, which also has a wide range of wide-bodies in its fleet, the picture is a little more complicated. In part that’s because initially its 777s and A350s (both of which fit about 300 seats) took over quite a lot of flying while its smaller 767s (200 to 240 seats or so) were more or less parked.
Since then, however, the 777 fleet has been retired and the 767s (both -300 and -400 series) have been doing nearly 60% of Delta’s wide-body flying. And its smallest Airbus wide-body, the A330-200, has flown much less throughout the pandemic. The A330-300, A330-900neo and A350-900 have filled in the rest of the flying, but while they were doing a majority of the wide-body flying in the first months, they’re not back to flying roughly the same percentage of Delta’s wide-body flights as before the pandemic.
It’s interesting to note that a number of 767s have been retired during this time, and A330-300s have been used to fill the gaps where necessary despite having a higher seat count. If no 767s had been retired it’s likely the total percentage of flights run with the 767 would be even higher.
What’s the bottom line?
It seems that airlines have tended to park their biggest planes, but perhaps not as drastically as some might have expected. That may have had a lot to do with cargo capacity. But cargo capacity will continue to be a consideration post-pandemic as well, so it’s not as if these planes will prove useless once things get back to normal. And if we see the boom in travel demand that some are predicting is on the way, many of these larger aircraft may see they get plenty of use yet.
Will there be less very large aircraft in airline fleets overall? Yes, probably. The A380 is all but done for except at a handful of airlines. And will smaller, long-range planes like the 787 prove popular in the years ahead? No doubt. But the bigger, fuel efficient planes like the 777X and A350-1000 will almost certainly still have their place in the sky too.
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Air Transport
Article | July 26, 2022
Each year airlines begin new sustainability initiatives, experiment with biofuels, and offset their carbon emissions on selected flights; yet, sustainability should not only be a topic of discussion when an aircraft is in the air but also when it’s on the ground.
In just one year, a Boeing 777, 787, Airbus A330, and A350, burn an extra 265,000 litres of fuel due to the 1% increase in drag. As a result, a full year’s operations of such an aircraft costs US$77,600 more than during the previous year. A dirty aircraft exterior is full of microscopic patches of dust and mud that impact the airliner’s operational efficiency by creating turbulent airflow across the whole fuselage. While the problem of additional drag is not new, there are no solutions to combat it other than performing regular cleaning of the aircraft’s exterior.
Reducing drag – through cleaning – on aircraft fuselage, wings, engine cowlings, and stabilizer brings another challenge; how to remain sustainable while performing the exterior cleaning process? A popular, yet wasteful pressurized water cleaning technique requires more than 11,300 litres of water to clean one Airbus A380 aircraft and more than 9,500 litres to clean a Boeing 777. Traditionally, aircraft are cleaned four to five times per year, and with more than 48 thousand airframes in the world, the amount of water used each year is immense. As a result, the positives of clean fuselages are outweighed by the negatives of wasteful usage of expensive and environmentally important resources.
This raises a question: whether it is possible to be eco-friendly in the aviation industry when one solution brings even more challenges than benefits? While the answer may look complicated, the definite answer is yes. The use of robots in household applications has proven that robotification is an inevitable and much-needed process to achieve even more efficient operational performance.
One of the solutions to address the inefficient and time-consuming process of washing an aircraft fuselage is to employ an aircraft exterior cleaning robot. The market offerings like Nordic Dino, have been perfected and adapted to work with a wide range of aircraft fuselage types. Such robots are designed to minimize the use of water and detergent on every wash; saving more than 30% more water when compared to traditional washing methods. At the same time, built with sustainability in mind, the robots can be equipped with electric motors, further minimizing the environmental impact.
“Sustainability and eco-friendliness should not be viewed as challenges or impossible achievements in the aviation industry. By utilizing the right equipment, finding alternatives to polluting methods, and increasing efficiency at every step possible, companies could come one step closer to operational efficiency as well as sustainability targets. Our offering, Nordic Dino can reduce the use of water and detergent and can be powered by electricity, reducing carbon and nitrogen dioxide emissions. By the robotification of the cleaning process we present a solution to MROs and dedicated aircraft cleaning companies to become green.” – commented Jan Brunstedt, CEO of Aviator Robotics AB.
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Air Transport
Article | July 15, 2022
Can the aviation industry have a net zero-carbon emissions? Can technology assist in achieving net-zero emissions?
Presently, customers are taking more flights than ever as the industry is set to grow post-pandemic effects. Data from IATA shows that the UK aviation industry alone ejected thirty-seven million tonnes of CO2 into the atmosphere in 2020. That’s an average of 9% more in tonnes of emission the industry recorded in 2018.
The warnings are transparent. In the latest reports of Intergovernmental Panel on Climate Change (IPCC), the effects of global warming are escalating.
“We know the challenges of climate change the world is facing. It has only continued to intensify,”
-Nicholas Calio, president and CEO of Airlines for America
Airlines are subsequently embracing their actions towards the recovery of their business. There is a need to take even braver, more momentous steps to address this challenge.
Airlines have been focused on carbon offset programs for years. It has previously invested in projects and organizations that assist in reducing the impact of CO2 emissions.
In March 2021, the U.S. airline industry announced that its market leaders are committed to achieving zero carbon emissions by 2050.
The aviation industry is currently rising at between 4% and 5% a year. And the number of passengers will double every 15-20 years. How will the industry let fly with zero emissions? Certain plans strongly focus on the increasing use of sustainable aviation fuel and jet fuel. These fuels are produced from sources such as plant oils, municipal waste, agricultural residue, fossil fuels, and other interim steps.
The blog accumulates some of the best ways that aviation has unveiled on the grounds of zero carbon emissions.
Escalating the Use of Alternative Fuel
The escalating use of alternative fuels is perhaps the most significant proposed carbon reduction initiative for sustainable aviation fuel (SAF) usage. Sustainable fuel is going to be created from plant or animal material. One of the examples is waste oil.
It is studied that SAF has the potential to cut life-cycle emissions from aviation by 80%. It can be blended with conventional jet fuel without making major changes in aircraft designs. But, as technology is concerned with SAF usage, it can be eight times more expensive than conventional jet fuel. SAF currently values less than 0.1% of the almost 300 million tonnes of fuel that commercial airlines use every day.
some companies are taking regulatory incentives in joint efforts with aviation after looking at the costs and ensuring that more SAF is used in the future. Let’s see which corporate companies are setting commendable aviation-related commitments.
Microsoft partnered with Alaska Airlines. Together, they are working to cover CO2 emissions to make their employees’ travel safe by introducing SAF credits.
FedEx has committed to purchase 13 million liters of sustainable aviation fuel from Red Rock Biofuel. It is a part of their long-term net-zero emission strategy.
Express GBT created an alliance to help in increasing supply SAF to under carbon reduction initiative and become zero carbon-emitting by 2050.
Industry-Wide Efforts
The path to climate recovery with zero airline emissions will require a collective effort from all industries. This also includes governments. They must take responsibility for the impact of certain activities, products, and policies have on the environment. The production of fossil fuels is one of them. So, the aviation industry must reduce its dependency on fossil fuels for air travel.
Industries such as energy, road transport, infrastructure, manufacturing, and finance are being collectively responsible for creating a risk-free airline emission. For example, policies of energy transition must include a change in the production plan. Road transport efforts should be advanced by designing electric vehicles. Manufacturers should bring in new technology to support the creation of lightweight engines and aircraft parts. All of them should join hands for a sustainable future for aviation.
The Role of Government Investments
Government bodies play a crucial role in heading up carbon reduction initiatives. The initiative will have solutions such as new aircraft technology and more efficient infrastructure and operations. It also includes the development of zero-carbon energy sources like hydrogen and electric power generation.
According to IATA, 1.8 gigatons of carbon will be required to sustain the aviation industry in 2050. The prediction can achieve 65% of carbon for sustainable aviation fuels.
What are other solutions in demand to commit to addressing a zero-emission environment? It includes:
Fuel-producing companies are to bring large-scale, cost-competitive sustainable aviation fuels (SAF) to the market.
Governments and air navigation service providers (ANSPs) eliminate inadequacies in air traffic management and airspace infrastructure.
Aircraft and engine manufacturers produce more efficient aircraft engines and propulsion technologies.
Airport operators provide the required infrastructure to supply cost-effective SAF.
Airline Firms Decarbonizing Aviation
Presently, aviation is driving towards a new chapter of growth. And the pillars of growth are the firms that are continuously making efforts to make aviation a risk-free industry.
Let’s see how aviation firms are contributing to making a zero-carbon emission sky for safe air travel for the future.
Delta Airlines
Delta and Aviation Climate Taskforce are initiating technological innovation and accelerating the research and development of emerging technologies. Emerging technologies refer to reducing CO2 footprint production. They are focusing on their approach towards medium-term solutions, near-term solutions and long terms solutions.
The mid-term solutions include synthetic fuel. The near-term solutions focus on emerging bio-based Sustainable Aviation Fuel (SAF) pathways. And long-term solutions include hydrogen technologies. ACT will aim to support the advancement of these technologies through two crucial pillars:
An Innovation Network
A Collaboration Forum
JetBlue
JetBlue went carbon neutral for all its flights. It went through carbon offset programs in partnership with the CarbonFund.org Foundation. The investment included solar, wind, and hydrogen-energy project initiatives.
Apart from this, JetBlue also invested in hundreds of global carbon offset programs to support renewable energy efforts.
“views carbon initiative as a platform for other industry-wide environmental improvements that support lower emissions.”
-JetBlue
The best part is that JetBlue also invested in sustainable aviation fuel on flights. They are currently operating from San Francisco International Airport.
American Airlines
American Airlines changed its strategy of using traditional jet fuel. The airline has committed to purchase 9 million gallons of SAF to lower CO2 emissions in the next three years.
Southwest Airlines
On Earth Day 2021, Southwest Airlines announced it would continue to support the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL). NREL works to develop cost-effective low-carbon aviation fuels that are generated from waste.
The airline SAF will play a vital role in getting the atmosphere carbon neutral and will be able to achieve carbon neutrality by 2050. On this, NREL estimates that wet waste typically produces enough energy to provide about 20% of jet fuel consumption.
How Will the Industry Embrace Greener Air Travel Once It Returns to the Sky?
There is a buzz that travelers are now becoming more conscious of the environment. Inspired by Greta Thunberg, a Swedish climate change activist after the pandemic, a growing wave of eco-conscious travelers are choosing to fly with more environmentally friendly airlines. They are also opting for other means of transportation.
As the aviation industry accounts for 2.5 percent of global carbon emissions, travelers now want to be associated with greater environmental awareness. They are taking some essential steps such as:
Asking whether a flight is necessary for travel
Booking a flight that travels nonstop
Keeping a check on airlines that promote carbon reduction goals
On the other hand, airline companies today are opting to monitor themselves. They are doing it within the parameters of emissions, manufacturing, and embracing technological aspects.
Frequently Asked Questions
How can air travel become more environmentally friendly?
You can follow some travel tips such as:
Opt for a direct destination flight
Find alternatives to travel other than flight (if not necessary)
Carry lesser or lighter luggage
Try to produce lesser waste
Choose a sustainable flight
How are airline firms reducing emissions from their flights?
Airline firms are continuously working towards reducing emissions in several ways. They are:
By retiring old aircraft
By updating air traffic routes to reduce fuel consumption
By investing in newer technologies in the manufacturing process and other fields
By participating in electricity generation and other sources of fuel generation
Which are the most eco-friendly airlines?
The most eco-friendly airlines are:
Air France
United Airlines
JetBlue
Delta Airlines
Virgin Airlines
Alaska Airlines
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Air Transport
Article | July 26, 2022
A New System That Aims to Create Carbon-Neutral Aviation
Scientists have achieved an amazing breakthrough in the development of carbon-neutral fuel for the aviation industry. An aviation fuel production system that uses water, sunlight, and carbon dioxide has been put into action. Its design was published on July 20th, 2022, in the journal Joule. The dream of achieving carbon-free aviation could become a reality with this development.
“We are the first to demonstrate the entire thermochemical process chain from water and CO2 to kerosene in a fully-integrated solar tower system.” - Aldo Steinfeld, Professor, Study Corresponding Author, ETH Zurich
The aviation industry accounts for approximately 5% of the global anthropogenic emissions that contribute to global climate change. The industry heavily relies on kerosene, commonly known as jet fuel, a liquid hydrocarbon fuel derived from crude oil. There are no clean options to power commercial flights on a global scale at the moment.
Production of Synthetic Kerosene
This breakthrough, with the help of solar energy, makes it possible to produce synthetic kerosene from water and carbon dioxide instead of crude oil. The amount of CO2 emitted during kerosene combustion in a jet engine equals what is consumed during its production in the solar plant. It is what makes the fuel carbon neutral, especially if the CO2 in the air is captured and directly used as an ingredient, which could be possible in the near future.
As part of the European Union's SUN-to-LIQUID project, Steinfeld and his colleagues put forward a system that uses solar power to generate drop-in fuels—synthetic alternatives to fossil-derived fuels like kerosene and diesel. Solar-produced kerosene is consistent with the current aviation infrastructure for allocation, fuel storage, and use in jet engines. It can also combine with fossil-derived kerosene, according to Steinfeld.
High Hopes for the Future
Steinfeld and his team began scaling the construction of a solar fuel manufacturing plant at the IMDEA Energy Institute in Spain half a decade ago. The plant has 169 sun-tracking reflective panels that redirect and concentrate solar radiation into a tower-mounted solar reactor. This concentrated solar energy then powers redox reaction cycles in the reactor’s porous ceria structure, which is not absorbed but can be reused. It transforms the water and carbon dioxide into syngas, a customized mixture of hydrogen and carbon monoxide. This syngas is then injected into a gas-to-liquid converter and is finally converted into liquid hydrocarbon fuels such as kerosene and diesel. Steinfeld and his team are working on amping up the reactor’s efficiency from the current 4% to more than 15%.
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