Defense and Space
Article | June 8, 2022
Airplane travel is one of the most convenient means of transportation. Consequently, air travel is growing, and aircraft need to be more efficient. Furthermore, in the aftermath of the pandemic, the aviation industry appears to be committed to ensuring a sustainable airflight future. So, for this, aircraft need to be more efficient in production costs and fuel consumption.
An aircraft design depends on three of the most critical aspects. The first is the factor of reliability. Aviation is the only industry where it is impossible to overlook, rectify, or investigate a failed flight mechanism on the spot. The second factor is the need to minimize the weight and volume of its components to withstand load and fluctuating temperatures. And, the third factor is that it shows extreme concern from an environmental perspective. Temperatures on the ground can reach 60 °C and even -80 °C in the stratosphere, with supersonic aircraft reaching temperatures of over 200 °C.
As a result of these factors, the aircraft lubrication system and its requirements are critical. From an economic perspective, servicing and maintenance are a significant part of airlines' expenses after the purchase. In addition, the replacement of parts can cause airplanes to remain grounded for an extended period. Such circumstances can lead to a loss of time and money simultaneously.
From a safety aspect, failures at every level should be avoided. Failures like the shutdown of engines or breakage of engine parts can lead to aircraft failures or even crashes. So, by knowing all these issues around air travel, you can easily understand the interest in aircraft engine oil.
An Innovative Lubrication System for Aircraft Engine
Aircraft turbines revolve at up to 18,000 rpm (revolutions per minute). Due to this, internal temperatures can rise compared to the ambient temperature outside. So, aviation engines need an efficient oil-based lubricant to less pollute the environment and sustain long-distance air travel.
Recently, researchers in the EU-funded ELUBSYS project developed a novel way to use specified aircraft engine oil to promote efficiency and reliability. For this, SAF (Sustainable Aviation Fuel) is in high demand. Moreover, the project's innovative oil production will also help reduce an airline’s operating and maintenance costs. In this way, Europe’s aircraft manufacturers are way ahead in supporting future aircraft engine development.
“Aircraft engine turbines rotate at a very high speed with the help of the classic rubberized oil-seals used in the aircraft engine. The extremes of temperature and friction involved would destroy them. Yet aircraft engines need to stay lubricated.”
-Vincent Thomas of Techspace Aero in Belgium
Apart from this, the piston engine looks promising for the aviation piston engine industry. However, it seems like a piston engine holds an optimistic future in fuel economy. Now, with the inclusion of piston engines, there is more importance to using piston engine oil in the lubrication system for an aircraft engine.
So, how piston engine will be the game-changer for aircraft?
Piston Engine—A Game-Changer in Fuel Economy
Numerous aviation firms are developing a new type of internal combustion engine. Such engines promise a notable boost in fuel economy while also plummeting greenhouse gas emissions. In addition, start-ups like EcoMotors, Achates Power, and Pinnacle Engines are building variations on piston engines with the help of specific piston engine oil.
The engines serve as combustion chambers where fuel is ignited. That makes engines lighter in weight and faster in their operations with greater power density. In this way, piston engines result in less energy waste and thus operate more efficiently.
“The technology is worthwhile. However, it is a completely different concept compared to conventional engines,”
- Dean Tomazic, Vice President of FEV in Auburn.
There are more success stories from the aviation piston engine industry. These stories predict that, indeed, aviation is going through a significant transformation.
Another significant achievement comes from Pinnacle, based in San Carlos, Calif. It is developing a four-stroke, gasoline opposed-piston engine. The company’s founder, Monty Cleeves, invented a sleeve valve that ensures energy is used for propulsion instead of getting wasted after converting into heat.
Functions of the Lubrication System for Aircraft Engine Oils
What are the significant functions of lubricants in aviation oils and engines?
It is the function that realizes the importance of things. Isn’t it? So, to realize the importance of aircraft engine oils, it’s crucial to show the potential of the aircraft lubrication systems.
1 Friction and Wear Reduction
Lubricants reduce friction and wear in an aviation engine. The aircraft lubrication system deals with cooling, sealing, clearing, and fighting corrosion and rust in the engine.
Airplanes that are used seldom need the thorough protection from rust and corrosion that good aviation oils can provide. Also, frequently flying airplanes need lubricants for smooth engine operations and functions to avoid failures.
2 Acts as a Cooling Agent
But it is critical to use good aviation oils as lubricants. Oil is a heat-transform medium. Thus, a suitable oil should be used so that lubricants can keep the engine cool and smooth.
3 A life Saver of Aircraft Engines
Lubricants help in extending the life span of an aircraft engine. If an aircraft uses good aviation oil, for example, SAF, biofuels, and more, then there are fewer chances of any engine repairs. In this case, piston engines are the best fit for aircraft with high demand. Piston engines use highly lubricant piston engine oils, which increase the longevity of aviation engines.
Let’s look at some key takeaways from the market study of aircraft engine oil.
Aircraft Engine Oil: Key Takeaways from its Market Study
Commercial planes and business jets will likely witness high aircraft lubricant oil sales.
According to IATA, mineral oil demand is expected to rise by 25% by 2030.
Bio-based oils will dominate the aviation industry in response to soaring environmental concerns.
Maintenance, repair, and operations (MRO) activities will emerge as crucial parts of aviation to drive the global aviation lubricant market.
Lastly, what’s understood is that aircraft engine oil is the engine's lifeblood. Thus, the engine must function efficiently to encompass the length between overhauls.
Frequently Asked Questions
What does engine oil do in an aircraft?
Engine oil functions as a coolant. Up to 40% of an aircraft’s cooling comes from engine oil. Oil creates a seal between the piston rings, which reduces wear and friction andprovides better compression with increased fuel efficiency.
How is the engine oil lubricated?
Engine oil is lubricated with seals using air, which holds back the oil. Air and oil need to be separated. The air eventually vents out in the form of heat. That is why good oil is necessary for aircraft for lubrication.
What are the essential functions of engine oil?
The essential functions of engine oil are:
Minimizes friction and reduce wear
Cleans the engine
Transfers heat
Prevents corrosion
Forms a seal
Cools the engine parts
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Aviation Technology
Article | July 26, 2022
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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Business Aviation
Article | January 7, 2022
The aviation industry has allowed people to connect the world in unimaginable ways. Due to this, it has contributed massively to social and economic development globally.
However, the aviation sector produces nearly 1.8% of annual carbon emissions. It is almost half of the total growth in carbon dioxide emissions in the last twenty years due to the expansion of flights, increasing routes, and airline sizes.
In the loop, the commercial aviation sector has also been affected by climate change. The change is due to increased noise levels, air pollution, and waste production.
According to the International Energy Agency (IEA), the industry recorded 2.8% of global CO2 emissions in 2019. But now, the industry has pledged to be carbon neutral by 2050 through a focus on a critical low-carbon strategy, says IATA. By looking at this futuristic development, airline businesses are becoming more and more optimistic.
The Action Plan
The aviation industry has taken steps to reduce rising carbon emissions. The industry had framed targets that included carbon-neutral growth before the pandemic. But the pandemic compelled the industry to make some critical decisions. One of them is to fasten the action plan for low-carbon development.
McKinsey recently studied the industry’s emissions. According to the report, the industry's aviation emissions would be reduced by 18 to 35 percent by 2030. However, as the aviation industry’s growth is recorded from Asia, including India, China, and Southeast Asia, decarbonization can only work if airlines from these nations actively participate in the development.
“For aviation, zero-carbon is a bold, audacious commitment. But it is also necessary.”
-IATA Director General Willie Walsh
Airlines and other businesses are under pressure to make rapid progress towards lower emissions. It is because breakthrough technology like hydrogen-powered planes has started manufacturing.
For example, British Airways, Delta Air Lines, Inc., and United Airlines Holding Inc. have already made net-zero commitments by introducing hydrogen-powered planes. Similarly, JetBlue Airways Corp has set a target of 2040 to introduce low-carbon planes in no time.
So, by looking at above comitments, how will aviation progress in terms of low-carbon development? What are those fundamental ways that’ll guide the industry to see a sustainable future in real life?
4 Ways Aviation will Look Forward to Reducing Carbon Emissions
Green Fuel
Aviation considers green fuel as one of the quickest paths to low carbon development. Green fuel can be a game-changer in lessening carbon emission impacts. But, furthermore, it can lead to drastic climate change. Green fuel, also known as sustainable aviation fuel (SAF), is made from renewable sources such as plants or waste.
As per IATA, SAF can cut carbon emissions by nearly 80%.
But specific concerns like cost and availability are equally essential to think about. For example, the United States and other countries consider subsidies to decrease prices and increase supplies. They are practicing this due to limited availability. Also, some airlines are blending small amounts into the fuel they buy for their aircraft.
Other concerns, such as planes running properly on pure SAF, are also highlighted. In addition, flight engines based on petroleum fuel rely on their oily qualities to lubricate parts and function appropriately. So, it's unclear if green fuels offer that amount of strength in their engines to fly a flight.
Despite so many heated concerns (that are valid), the industry still looks good as Boeing (BA.N) studies the above issue. It has even committed to ensuring its planes are certified for 100% SAF by 2030.
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Lower Carbon Technologies
Technological improvements to lower carbon emissions include retrofitting existing aircraft, adopting the latest fuel-efficient aircraft, retiring old aircraft, and others.
Several ongoing electric or hybrid-electric aircraft technology projects are in the pipeline. They are being identified to enter the industry between 2022-2030. In contrast, some of them are already in service.
Developments in Infrastructure
The International Civil Aviation Organisation (ICAO) has created plans to reduce fuel burn and greenhouse gas emissions (GHGs). The plans have been forwarded to optimize communication, navigation, surveillance (CNS), and air transport management (ATM) regarding zero-carbon development.
Apart from this, airlines are also working to align emission cuts with investments. Consumption of fuel usually covers 20-30% of operational costs. It is one of the highest costs of an airline business. So now airlines are considering adopting fuel-efficient flying and airport operations.
Collaborations
Today, aviation needs more stakeholders for a sustainable future. They can only increase the efficiencies and development of SAF.
Stakeholders from technology providers, oil companies, and energy production could drive demand and help bridge the cost gap. For instance, airlines commit to buying SAF at a particular price or at a different price than traditional fuel jets. These factors could eliminate market risks for fuel suppliers.
Next, airlines can work with B2B customers willing to pay for the decarbonization initiative. For example, airlines could use loyalty-program rewards as incentives for every customer to choose airlines that use SAF. Collaborations like these can help the industry accelerate its low carbon emission initiatives.
These Top Airlines Commit to Using New Technologies
Aviation industry leaders aim for 30% of the aircraft to operate with the help of new technologies by 2030. They strongly support the introduction of hydrogen and electric-powered planes to the market in order to reduce the industry's carbon footprint.
So, let’s see the airlines and their commitment to creating a sustainable aviation future.
Air New Zealand
Air New Zealand’s initiatives such as True Target Zero accelerate the adoption of zero-emission aircraft worldwide. Air New Zealand is delighted to work with other industry leaders working towards net-zero goals.
“Air New Zealand pledges to put low carbon solutions in place for all our smaller domestic and regional flights in the future. However, we know that the drive to decarbonize the aviation industry is impossible for one airline to tackle alone. Rather it’s a joint venture, and it's all about joining hands together.”
-David Morgan, Chief Operational Integrity & Safety Officer, Air New Zealand
Mokulele Airlines and Southern Airways
Mokulele Airlines, the largest intra-state carrier in America, has already worked for many years as a maven to bring electrification to its air transportation system.
“We are satisfied to join the World Economic Forum in seeking a global public commitment to promoting sustainable air travel.”
-Stan Little, Chairman & CEO, Mokulele Airlines and Southern Airways
Braathens Regional Airlines
The airline has the ambition to make its flights fossil-free by 2030. The airline has included electric planes, and with its partnership with True Zero Aviation, it is taking steps to accelerate towards actual low carbon emissions.
Can Aviation Make a Difference in the New Path of Development?
There are a lot of positive aviation stories from all over the globe. However, aviation also has some barriers to the new path of low-carbon development. Nevertheless, aviation can undoubtedly make a difference by introducing technologies, implementing result-driven strategies, implementing the right tools, and many more.
But from the customers' perspective, choosing to fly less can be another good reason to reduce an individual’s carbon pollution. The reduction can be up to 50% each year. So even avoiding long-distance flight travel could make a significant difference to aviation.
Business travelers could adopt or choose to use virtual meeting technology. These could be other crucial factors limiting the carbon footprint in the atmosphere.
Whatever you choose to opt for, it is high time to contribute to a more sustainable aviation sector for the future.
Frequently Asked Questions
How can airlines reduce their carbon footprint?
Airlines can introduce more efficient aircraft. Efficiency in technological aspects, reduce flight delays, and increase the use of sustainable lower-carbon or alternative fuels. Also, investment plays a vital role here. They can invest in emissions initiatives and promote low-carbon travel.
How can an airline achieve its carbon-neutral goals?
An airline can explore hybrid and electric aircraft technology to reach carbon-neutral goals, reduce carbon emissions using SAF, and embrace fewer flight routes (distance).
Do aircraft harm the atmosphere?
Aircraft create very polluting elements and are highly challenging means of transport. Indeed, air traffic represents less than 2%-3% of the global CO2 emissions, yet it transmits direct CO2 emissions than cars on roads.
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Design and Engineering
Article | December 28, 2021
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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