Onboard ‘Flight100’ – the first transatlantic flight powered by 100% sustainable aviation fuel
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On Tuesday, I was one of an exclusive group of 110 people on board Virgin Atlantic’s ‘Flight100’.
If you haven’t been following along, this was a demonstration flight operated by Virgin Atlantic in conjunction with Boeing, Rolls-Royce and four other companies and universities to prove that current aircraft are able to fly on 100% sustainable aviation fuel. A few weeks ago, I visited Rolls-Royce in Derby to learn more about their testing program.
The Department for Transport, which kicked off the challenge, provided £1 million in funding which Virgin matched.
Since winning the competition to operate the flight in November 2022, Virgin Atlantic and its partners have been beavering away to make it a reality, but also to ensure that the flight would be as safe as any other commercial flight.
As this was a demonstration flight, no paying passengers or cargo were allowed on board. In fact, the Civil Aviation Authority would only permit a maximum of 120 people on board who had to have a specific interest in the flight itself. That included staff from all the consortium partners as well as a small selection of broadcasters and journalists such as myself to document the experience.
Whilst we boarded the flight just after 10am on Tuesday, work has been underway for some time to prepare the aircraft. Holly Boyd-Boland, VP Corporate Development and Sustainability at Virgin Atlantic, told me:
“It’s been a process over the last six to eight months, where we have been identifying the fuel and doing a lot of testing, primarily through our partners at Rolls-Royce and in collaboration with Sheffield University.
But getting ready for today and going back a week or so, the fuel arrived from Europe and the US at the beginning of last week and was blended on the Isle of Grain by AirBP last Tuesday. Last Thursday, it was tankered in two specific bowsers up to Heathrow. On Friday we fueled the engines, which took a couple of batches. So we fueled the initial, then did some additional testing, then we fueled the whole thing up. And between Friday and now the aircraft’s been under pretty tight maintenance watch to make sure that it was fit for purpose.”
The fuel used yesterday was a specific blend of two different types of sustainable aviation fuel, in order to create what is called a ‘drop in’ fuel. This means that no modifications need to be made to the aircraft in order for it to fly: it can be used just like normal jet fuel, without having to recertify the engines and fuel systems. Said Corneel Koster, Virgin’s Chief Customer & Operating Officer:
“We knew from full testing on the ground that this blend, which is 88% HEFA, basically fatty acids and waste oils; and 12%, synthetic, aromatic kerosene, which is made from waste from corn. This combination is unique. But we tested this extensively on Rolls Royce on the ground for an entire full flight profile of a flight to New York. And then the next day we tested the normal Jet A fuel and saw that it’s absolutely comparable.”
Maria Laine, President United Kingdom, Ireland & Nordic region for Boeing added:
“That’s the beauty of sustainable aviation fuels. It truly is a drop-in solution. That’s one of the purposes of this flight, to serve as proof that we can easily slide it into commercial operations so that no major impacts to infrastructure or anything else needs to be carried out.”
Nonetheless, Virgin Atlantic was still keen to run a little dress rehearsal before the main event on Tuesday, particularly given the exceptionally high interest in the story. Corneel said:
“We were fully certified and ready to fly today, without having done it before. But look, quite clearly the world is watching today. We wanted to make sure that everything goes right. So we de-risked the project and some of our ground procedures by doing a very short, very quiet flight on Saturday as a dress rehearsal, to go above and beyond and to make sure that everything was ready for Tuesday. It was completely uneventful!”
The dress rehearsal paid off. VS100 took off smoothly at 11:49am as expected, and for those of us on board it felt like any other flight to New York. From the flight itself it was indistinguishable that we were running on sustainable aviation fuel. The only giveaway was the excitement on board and the cheer after take-off!
Flight100 wasn’t just testing sustainable aviation fuels, however. Virgin Atlantic also incorporated a suite of fuel-saving measures including one of the most direct routings from London to New York that’s possible, saving a predicted 1,000kg+ of jetfuel.
Other measures included more efficient ascent and descent procedures and single-engine taxiing at JFK. In total, an estimated 3,242kg of fuel were saved, equivalent to just over 10,000kg of CO2.
After 7:16 hours, we came in to land in an overcast and ice-cold JFK Airport, with the entire flight having operated as expected.
I’d be lying if I said the flight was eventful: as I mentioned above, to us it felt like any other regular service between London and New York. But that’s the beauty of sustainable aviation fuel: it can reduce our carbon footprint by over 70% on existing infrastructure and without needing to re-invent the wheel. This makes it the only practical solution for decarbonising aviation in the next few decades before future technologies such as hydrogen or battery flight become a commercial reality.
What’s next? Supply continues to be a major problem, with SAF currently contributing less than 0.1% of all aviation fuel globally. Scaling up production will be key. Just to get to Virgin Atlantic’s target of 10% by 2030 will require a hundred-fold increase.
Sadly, SAF production in the UK is extremely thin on the ground with no dedicated SAF refineries in operation. The fuel used for our flight was imported from the EU and US. At present, five commercial plants are due to start construction by 2025
If everything goes to plan, though, Virgin Atlantic will be flying with 10%+ SAF in just over six years.
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You can also earn Virgin Points from various American Express cards – and these have sign-up bonuses too.
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