Thoughts On The Airbus A 390
Ask Google what she knows about the Airbus A 390 and you get this AI Summary.
The Airbus A390 is a three-deck, six-engine aircraft that can carry around 1,000 passengers. It’s based on the A380, but with a third deck and extra engines. The A390 was custom-built for Qantas to fly between Melbourne and New York.
Google got their summary from this page on steemit.
Search for images of the Airbus A 390 and you get several images of this unusual three-deck aircraft, that looks like a widened Airbus A 380 with six engines.
These are some of my thoughts.
Wikipedia Entries
There is no Wikipedia entry for the Airbus A 390.
But.
- There is a Wikipedia entry for the Airbus A 380.
- There is also a Wikipedia entry for the six unusual Airbus Beluga XLs, which are used to transport two pairs of Airbus A 350 wings between factories.
The A 390 is supposedly based on the A 380 and the Beluga XL appears to have a fuselage that is a bit like the Airbus A 390.
Will The Airbus A 390 Fly?
After reading the two Wikipedia entries, I am fairly sure that an Airbus A 390 airliner, as shown in the pictures would be able to fly.
Although, I must say, that I was surprised, at seeing an Airbus Beluga XL on video. This is a Beluga XL landing at Heathrow.
So I think we can say, that Airbus know more than a bit about the aerodynamics of three-deck fuselages.
The Antonov An-225 Mriya
This aircraft designed and built in the Soviet Union , does have a Wikipedia entry.
These three paragraphs from the start of the entry, give some details of this unusual and very large aircraft.
The Antonov An-225 Mriya (Ukrainian: Антонов Ан-225 Мрія, lit. ’dream’ or ‘inspiration’) was a strategic airlift cargo aircraft designed and produced by the Antonov Design Bureau in the Soviet Union.
It was originally developed during the 1980s as an enlarged derivative of the Antonov An-124 airlifter for transporting Buran spacecraft. On 21 December 1988, the An-225 performed its maiden flight; only one aircraft was ever completed, although a second airframe with a slightly different configuration was partially built. After a brief period of use in the Soviet space programme, the aircraft was mothballed during the early 1990s. Towards the turn of the century, it was decided to refurbish the An-225 and reintroduce it for commercial operations, carrying oversized payloads for the operator Antonov Airlines. Multiple announcements were made regarding the potential completion of the second airframe, though its construction largely remained on hold due to a lack of funding. By 2009, it had reportedly been brought up to 60–70% completion.
With a maximum takeoff weight of 640 tonnes (705 short tons), the An-225 held several records, including heaviest aircraft ever built and largest wingspan of any operational aircraft. It was commonly used to transport objects once thought impossible to move by air, such as 130-ton generators, wind turbine blades, and diesel locomotives.
This further paragraph described the destruction of the aircraft.
The only completed An-225 was destroyed in the Battle of Antonov Airport in 2022 during the Russian invasion of Ukraine. Ukrainian president Volodymyr Zelenskyy announced plans to complete the second An-225 to replace the destroyed aircraft.
I feel that the Mriya is significant for the Airbus A 390 for three reasons.
- Mriya was a six-engine heavy-lift cargo aircraft developed from a certified four-engine transport.
- Mriya was starting to make a name for being able to move over-sized cargo around the world.
- Given the parlous state of parts of the world and the ambitions of some of its so-called leaders, I believe, as I suspect others do, that a heavy-lift cargo aircraft is needed for disaster relief.
So are Airbus looking at the possibilities of converting some unwanted A 380 airliners into the heavy-lift aircraft, that they believe the world needs?
- They may even want some for their own purposes.
- Jeff Bezos or Elon Musk may need a heavy-lift aircraft for their space programs.
Converting some unwanted Airbus A 380s into heavy-lift cargo aircraft could be a more affordable route, than designing and building new aircraft from scratch.
Bidders Circle ‘Elvis Airport’ A Decade After The SNP Bought It For £1
The title of this post, is the same as that of this article in The Times.
This is the sub-heading.
Prestwick has cost taxpayers millions since it was nationalised by the SNP in 2013. A consortium plans a bid, but can the Nats let go of Sturgeon-era stateism?
These are the first two paragraphs.
It was always going to be difficult keeping a lid on the arrival of Elvis Presley at a US military base in Prestwick, Ayrshire. “Where am I?” he asked as he stepped off the plane and into the biting wind that whipped off the Firth of Clyde.
March 3, 1960 was a momentous day for the screaming youngsters who engulfed the American singer as he set foot on British soil for the first and only time. For Presley, it was his last stop on his return from Germany after two years of military service. For Prestwick, it meant being immortalised in British trivia for its brief flirtation with The King.
But now it appears that a consortium has a plan for the airport and has made a bid.
These are my thoughts.
Prestwick Airport
Prestwick Airport, which is 32 miles SouthWest of Glasgow, is an airport that has seen busier times.
This OpenRailwayMap shows the Airport.
Note.
- The airport has two runways at right angles.
- The longer runway is 3,000 metres long.
- The red line is the electrified Ayrshire Coast Line, which runs between Glasgow Central and Ayr.
- There is a station at the airport.
- The black line going across the map is an unelectrified railway line, which eventually leads to the West Coast Main Line.
The airport does have four very useful assets.
- A very long runway capable of handling the largest and heaviest aircraft.
- A railway station.
- Plenty of space.
- The airport has plenty of available landing and take-off slots.
I also suspect that a rail connection could be developed to the West Coast Main Line.
Prestwick As A Cargo Airport
Someone commenting in The Times, suggested that Prestwick could become a cargo airport.
- The main runway could accommodate the largest and heaviest cargo aircraft.
- There is space for stands for large aircraft and warehouses.
- A rail link to the electrified West Coast Main Line could be built.
The airport could have a very high capacity.
A Rail Connection To The West Coast Main Line
This could be very beneficial for air-cargo at Prestwick.
- It would be less than ninety miles to the West Coast Main Line.
- It is only single-track as British Rail removed the second track.
- Cargo Services could be run all over the UK mainland.
- There could even be an airport service from Carlisle.
A zero-carbon rail service for freight, passengers and staff from both Glasgow and Carlisle would enhance the green credentials of the airport.
Where Would Planes Fly?
It looks like a modern freighter aircraft like a Boeing 747-8F could fly at maximum weight to nearly all the USA.
But because Prestwick Airport is further North, It does possibly have a wider range of airports, it can reach.
What Is The Closest Airport In North America?
The two airports on Newfoundland; Gander and St. John’s are probably the two closest being about 2,000 miles from Prestwick.
- Both airports have long runways.
- I suspect a rail terminal could be arranged at the airport to take cargo through the Chunnel to Europe.
- Could USAF Galaxies even be used to bring over American tanks and guns for Ukraine? The range of a Galaxy at maximum weight is 2,600 miles.
- They could be delivered by rail to Ukraine.
I suspect there will be times, where the shorter routes could be useful.
Could Cargo Change Planes At Prestwick?
On some routes like perhaps New York and India, might it be more efficient to change planes at Prestwick.
Could Cargo Planes Refuel At Prestwick?
Planes can only fly so far and is Prestwick in the right place to refuel a long flight?
Prestwick Could Be A Viable Cargo Airport For North America?
I am convinced that Prestwick and North American could be a viable air cargo route.
Zero-Carbon Air Cargo
In the next few years, Scotland will have much more electricity, than it needs, due to all the wind farms in the seas around the country and much of the spare electricity could be converted into hydrogen.
So does a cargo operator plan to run zero-carbon aircraft powered by hydrogen between North America and Prestwick?
- Remember it’s only 2,000 miles between St. John’s or Gander and Prestwick.
- The ideal aircraft to convert to hydrogen, must surely be an Airbus A 380, as there’s a lot of space in the fuselage for a hydrogen tank.
- Cargo could be brought to Prestwick in zero-carbon trains from all over the UK.
Amazon might like the idea of zero-carbon parcels across the pond!
Could An Airbus A380 Be Converted To Hydrogen?
This article on Simple Flying is entitled Airbus Plans A380 Hydrogen Flights In 2026 After Successful Power On Of ZEROe Engine.
The header picture shows a visualisation of an Airbus A 380, with a fifth engine with a propeller mounted on the top of the fuselage. The A 380 will be testing this electric engine, so that it can be fitted in the ZEROe Turboprop sometime around 2030.
This is a visualisation of the ZEROe Turboprop.
Note,
- The hydrogen tank will probably be behind the passenger compartment.
- The A 380, that will be testing the engine is no ordinary A 380. It is the very first and Airbus use it as a flying laboratory for new technology.
- I wouldn’t bet against one of its next jobs, is to test turbofan engines running on hydrogen.
I wouldn’t be surprised that in a few years, Airbus demonstrate an A 380 flying between Europe and North America on hydrogen.
A Zero-Carbon Air Bridge Between Europe And North America
Or does Westjet fancy a zero-carbon shuttle service, which would appeal to the Gretas of this world?
It has been rumoured, that the possible buyers of Prestwick are linked to Westjet.
As soon, as someone announces, a flight like this across the Atlantic, I’ll be signing up!
If the worse should happen, which I think would be unlikely, it would surely be a less painful death, than that of my wife’s from a rare cancer.
Conclusion
There are certainly, possibilities at Prestwick.
Would A Dual-Fuel Boeing 747 Or Airbus A380 Save Carbon?
This press release from Airbus is entitled The ZEROe Demonstrator Has Arrived.
This is the introductory paragraph.
2022 marks a new and exciting phase for ZEROe – Airbus’ ambition to develop the world’s first zero-emission commercial aircraft by 2035. The multi-year demonstrator programme has officially been launched with the objective to test a variety of hydrogen technologies both on the ground and in the air.
The ZEROe demonstrator will be the first Airbus A 380 aircraft and it is shown in this Airbus visualisation.
Note.
- The four hydrogen tanks in the fuselage.
- The fifth engine mounted in a pod on the fuselage.
- There’s certainly lots of space inside the fuselage for more hydrogen tanks and test and monitoring equipment.
Take away the fifth engine and the test equipment and this aircraft becomes an A380 with two fuel systems; hydrogen and aviation fuel.
Consider.
- Suppose two engines were hydrogen-capable and two were normal engines running on aviation fuel or Sustainable Aviation Fuel (SAF).
- I don’t think it is impossible to build engines that could run on both hydrogen and Sustainable Aviation Fuel.
- All aircraft use fuel at a higher rate, during take-off and climbing.
- Do long non-stop flights use less fuel, than ones with stops?
- As altitude increases, air resistance decreases.
- Aircraft could fly slower to reduce the fuel needed, as they did in the oil crises in the last century.
- Generally, the most economical way to fly a route, is to climb to maximum altitude, fly level until descending into the destination.
- The aircraft would not carry cargo in the belly-hold.
- There could be a hydrogen-powered APU, as I wrote about in Airbus To Trial In-flight Auxiliary Power Entirely Generated By Hydrogen.
- This document from IATA says that in its liquid form, contains about 2.5 times more energy per kilogram than kerosene.
- The Boeing 747 first flew in 1969 and the Airbus A 380 in 2005, so these aircraft are well known.
I just wonder, if it is possible to work out a flight profile, that would enable these aircraft to fly very long non-stop routes?
- All four engines would be used for take-off.
- An appropriate power setting would be used for the cruise and the descent.
- There would be large numbers of 747s and A 380s in good condition to convert.
- The plane would land with little or no hydrogen left.
The hydrogen used would cut the carbon footprint of the flight.
The ZEROe Demonstrator Has Arrived
The title of this post, is the same as that of this press release from Airbus.
This is the introductory paragraph.
2022 marks a new and exciting phase for ZEROe – Airbus’ ambition to develop the world’s first zero-emission commercial aircraft by 2035. The multi-year demonstrator programme has officially been launched with the objective to test a variety of hydrogen technologies both on the ground and in the air.
The ZEROe demonstrator will be the first Airbus A 380 aircraft and it is shown in this Airbus visualisation.
Note.
- The four hydrogen tanks in the fuselage.
- The fifth engine mounted in a pod on the fuselage.
- There’s certainly lots of space inside the fuselage for more hydrogen tanks and test and monitoring equipment.
I have a few thoughts.
This Aircraft Will Be A Superb Demonstrator
The press release says this about the use of an A 380 as a demonstrator.
The A380 is the world’s largest and most spacious passenger jet ever built – a size that makes it ideally suited to the role of test platform.
Today, the A380 MSN1 test aircraft is earmarked for a new role: to take the lead on testing the technologies that will be vital to bringing the world’s first zero-emission aircraft to market by 2035.
“The A380 MSN1 is an excellent flight laboratory platform for new hydrogen technologies,” says Mathias Andriamisaina, Airbus ZEROe Demonstrator Leader. “It’s a safe and reliable platform that is highly versatile to test a wide range of zero-emission technologies. In addition, the platform can comfortably accommodate the large flight test instrumentation that will be needed to analyse the performance of the hydrogen in the hydrogen-propulsion system.”
Initially, I suspect the aircraft will fly as a four-engined turbofan aircraft running on standard or sustainable aviation fuel.
The performance of the hydrogen engine will be tested in all phases of operation and at different altitudes.
What Size Is The Fifth Engine?
This layout is clever.
If Airbus want to test a smaller hydrogen engine for say an Airbus A 320-sized hydrogen aircraft like the ZEROe Turbofan shown in this Airbus visualisation, they fit it to the fifth pylon.
Note.
- The fifth pylon on the ZEROe Demonstrator could be the proposed pylon for the ZEROe Turbofan.
- The ZEROe Demonstrator could probably carry a lot of hydrogen to test out the hydrogen engine over a long duration.
- The hydrogen engine could be tested out over the full flight envelop of an Airbus A 380.
I would suspect that the tests on the hydrogen engine would be some of the most comprehensive ever carried out on a new engine.
If Airbus want to test a larger hydrogen engine for say an Airbus A 350-sized hydrogen aircraft, they would probably replace one of the four main engines with the hydrogen engine.
It looks like Airbus will be able to test hydrogen engines for all sizes of plane in their current range.
What Will Happen To Current A 380s?
Consider.
- The production of the A 380 has been stopped.
- There are 251 aircraft in service.
- They appear to be a reliable and safe aircraft.
- The aircraft can run on sustainable aviation fuel.
- The oldest aircraft are only thirteen years old.
- They are still reasonably modern aircraft, that if they needed to be updated to the latest standards could probably be easily done so.
- The aircraft have a lot of volume, which can hold over 500 passengers in a typical configuration.
- The flying characteristics and structure of the aircraft is well known.
I suspect there are a lot of aircraft leasing companies, who feel these aircraft are too good to scrap, just because they are not zero-carbon.
Could Hydrogen Be Stored In The Wing Of An A 380?
Hydrogen storage will get more capable in the next few years and we will see hydrogen stored in strange places in vehicles and aircraft using the gas as a fuel.
The A 380 may well have an advantage in that its wing is relatively thick compared to that of other airliners.
- The A 380 has a wing aspect ratio of 7.53.
- The Boeing 787 has a wing aspect ratio of 11.
- Gliders have wing aspect ratios as upwards of 30.
High aspect ratios are generally more economical on fuel.
But this relatively thick wing, may make it possible to store hydrogen in the wing of an A 380.
Could There Be A Hydrogen-Powered A 380?
I suspect part of the Airbus ZEROe progam will be to investigate the possibility of converting existing A 380 aircraft into a capable hydrogen-powered aircraft.
In Could An A320 neo Be Rebuilt As A ZEROe Turbofan?, I looked at the possibility of turning an existing Airbus A 320 neo into a ZEROe Turbofan running on hydrogen.
This was my conclusion.
I very much feel that there will be a route to convert some or all of the A 320 neo aircraft to hydrogen power.
So what will a ZEROe A 380 look like if it follows the same design route as an A 320 neo to a ZEROe Turbofan?
- There would be a large hydrogen tank in the rear fuselage.
- As I explained earlier, there may be a possibility for some hydrogen to be stored in the wing.
- Both passenger decks would be shortened and perhaps be able to hold the 350-410 passengers of the Airbus A350-1000.
- The cockpit, front part of the fuselage, wings, tailplane and landing gear would be unchanged.
- The aircraft would fit existing jetways at any airport, that can handle an existing A 380.
I believe that converting an existing Airbus A380 to a hydrogen-powered aircraft is possible and the conversion falls within Barnes Wallis‘s rule of problem solving.
There is no greater thrill in life, that proving something is impossible and then showing how it can be done.
The quote comes from a BBC program, where he was interviewed by Chris Brasher, who was another for whom impossible was just a minor hurdle in the way of meeting objectives.
Could There Be A Hydrogen-Powered A 380 Freighter?
Consider.
- I think it is likely, that companies like Amazon will come under pressure over their carbon footprint, as they transport increasing numbers of packages around the world.
- In DHL Express Shapes Future For Sustainable Aviation With First Order Of All-Electric Cargo Planes From Eviation, I talk about how DHL Express have ordered twelve Eviation Alice aircraft to create a zero-carbon service. DHL must feel this would be good for their image. So would they like an intercontinental zero-carbon freighter?
- Some people worry about the air-miles on their food!
There could be a worthwhile niche market for a high capacity intercontinental zero-carbon freighter.
Because it has such a large internal volume, an Airbus A 380 might make an ideal aircraft to convert.
Conclusion
Airbus will learn a lot from the ZEROe Demonstrator.
They may even learn how to develop, a long-range hydrogen-powered zero-carbon A 380 variant that could carry four hundred passengers between Europe and Australia.
The Anonymous Widower 