Heart Aerospace Relocates Corporate Headquarters To Los Angeles, California
The title of this post, is the same as that of this news item from Heart Aerospace.
This is the sub-heading.
Hybrid-electric airplane manufacturer Heart Aerospace has announced the relocation of its corporate headquarters from Gothenburg, Sweden to Los Angeles, California. This strategic move aims to bolster the company’s product development in the United States, supporting the upcoming experimental flights of its Heart X1 prototype and the future Heart X2 prototype.
These two introductory paragraphs add ,ore detail.
Scheduled for its maiden flight in 2025, the X1 marks a major milestone in Heart’s innovation journey, setting the stage for X2.
“Our move to Los Angeles marks a new chapter in Heart Aerospace’s journey—one that prioritizes iterative development and deeper vertical integration,” said Anders Forslund, co-founder and CEO of Heart Aerospace. “For the X2, we’re developing key technologies like batteries, actuation systems, software, and hybrid-electric hardware in-house. This approach allows us to refine and enhance our systems continuously, just as we’ve done with the X1 prototype, which has seen extensive testing and major design updates since its initial rollout in 2024.”
In some ways, I find this move to California slightly sad, as I suspect most of those associated with the airliner, would have liked to see the development stay in Sweden.
This paragraph gives more details on the reasons for the move.
“We are deeply grateful to our team in Sweden for being part of this chapter of Heart’s journey, and for all the support we have received in Sweden,” said Anders Forslund. “However, as our customers, partners, and investors are increasingly based in the U.S, we see greater opportunity in focusing our resources here. By consolidating our operations in Los Angeles, we can accelerate development, strengthen collaboration, and better position Heart Aerospace for the future.”
They are not mentioned, but I do hope, Trump’s tariffs have nothing to do with it.
Firm Develops Jet Fuel Made Entirely From Human Poo
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
A new aviation company has developed a type of jet fuel made entirely from human sewage.
These are the first three paragraphs.
Chemists at a lab in Gloucestershire have turned the waste into kerosene.
James Hygate, Firefly Green Fuels CEO, said: “We wanted to find a really low-value feedstock that was highly abundant. And of course poo is abundant.”
Independent tests by international aviation regulators found it was nearly identical to standard fossil jet fuel.
It certainly seems to have a lot going for it.
I have some other thoughts.
What About Disposable Nappies?
I wrote Are Disposable Nappies A Wasted Resource?, about making hydrocarbon fuels from disposable nappies.
Should Disposable Nappies Be Collected Separately?
My food waste is collected separately in a special bin. Hackney Council say this is what happens to food waste.
Food waste from households in Hackney is sent to an anaerobic digestion facility in south east England, where it’s turned into renewable energy to power homes and biofertiliser to be spread on local farmland to grow crops.
Surely, a similar or appropriate process could be used for disposable nappies.
Biomethane From Sewage Works
In Centrica Signs UK Biomethane Agreement With Yorkshire Water And SGN Commercial Services, I wrote about how Centrica have found a way to distribute biomethane from sewage works using the UK’s gas grid.
Could Firefly take the solids and Centrica the biomethane?
Given that water companies are regularly blamed for spilling sewage could there be an opportunity for a large sewage works to be a major producer of green fuels for agriculture, aviation, industry and road transport.
Net-Zero Concept Aircraft: Which Designs Are The Current Front Runners?
The title of this post is the same as that of this article on Simple Flying.
The article is a good summary of what may happen in the field of Net-Zero aircraft in the next ten or twelve years.
Rolls-Royce And Gulfstream Give Wings To Sustainable Business Aviation
The title of this post, is the same as that of this press release from Rolls-Royce.
These are the first two paragraphs of the press release.
Rolls-Royce and Gulfstream Aerospace Corp. are leading the way towards sustainable business aviation by conducting the first original equipment manufacturer test flight of an ultralong-range business jet powered by 100% Sustainable Aviation Fuel (SAF). The test took place on the BR725-powered Gulfstream G650 twin-jet over Gulfstream’s headquarters in Savannah, Georgia.
Demonstrating that current Rolls-Royce engines for business jet and large civil applications can operate with 100% SAF as a full “drop-in” option, this test lays the groundwork for moving this type of fuel towards certification. At present, SAF is only certified for blends of up to 50% with conventional jet fuel and can be used on all current Rolls-Royce engines.
Note.
- The BR725 is described in this Wikipedia entry.
- The Gulfstream G650 is described in this Wikipedia entry.
- All current Rolls-Royce engines can run with blends of up to 50 % SAF and conventional jet fuel.
The BR725 or other engines in the family have other applications.
- It is used in the Bombardier Global Express.
- It was used in the Boeing 717 airliner.
- The military version of the BR725 will be used to re-engine the USAF’s Boeing B52-H Stratofortresses.
- The Dassault Falcon 10X will be powered by a development of the BR725.
I can certainly see, the owners of business jets being very interested in operating a sustainable business jet.
But would the USAF be interested in running a seventy-year-old bomber on 100% Sustainable Aviation Fuel?
The Fuel Used In The Test
This paragraph of the press release describes the fuel.
The SAF that was used in the test consists of two components: HEFA (Hydroprocessed Esters and Fatty Acids), produced from waste fat and waste plant oils by low-carbon fuel specialist World Energy in Paramount, California, and (SAK) Synthesised Aromatic Kerosene made from waste plant-based sugars by Wisconsin-based Virent Inc. This innovative and fully sustainable fuel in development eliminates the need for the addition of further petroleum-based components and enables a 100% drop-in SAF that can be used in existing jet engines and infrastructure without any modifications. This sustainable fuel has the potential to reduce net CO2 lifecycle emissions by about 80% compared to conventional jet fuel, with the possibility of further reductions in future.
That sounds impressive.
A Sustainable Airliner
The Boeing 717 is a hundred seat airliner, with about a hundred still in service. They appear to have a good safety record.
One of the operators is Hawaiian Airlines and might be the sort of airline, that would like to decarbonise their flights.
So might we see some airlines using the Boeing 717 on SAF to attract passengers?
I wouldn’t rule it out and after certifying the engine on the Gulfstream, certification on another type wouldn’t be the most demanding of certifications.
I also think, it is quite likely, that an aircraft manufacturer could use engines in the BR 725 family to create a hundred seat sustainable airliner.
The Anonymous Widower 