Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- GE testing of giant GE9X engine aims for maturity at entry into service June 30, 2025
- Bjorn’s Corner: Air Transport’s route to 2050. Part 28. June 27, 2025
- Parent agency, FAA often at odds as politics outweighs safety June 26, 2025
- Electric Flight and the Ugly Duckling June 25, 2025
- Engine makers tout “Plan A” but have “Plan B” backups in R&D June 23, 2025
Bjorn’s Corner: The challenges of Hydrogen. Part 15. Hydrogen cost
November 13, 2020, ©. Leeham News: In our series on hydrogen as an energy store for airliners, we now look at the cost of hydrogen. The current cost-efficient production is predominantly by reforming natural gas, meaning it’s a… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 13. The supply of Hydrogen
October 30, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliners we now address the problem of liquid hydrogen supply for air transport. Before we go into the ecosystem and its costs,… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 12. Safety
October 23, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliners we look deeper at the safety of a hydrogen airliner. Do the safety rules for the aircraft or the airport need… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 11. Emissions
October 2, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliners we look deeper at the emissions from a hydrogen airliner and compare it to the emissions from today’s carbon fueled aircraft.
Airbus announces zero-emission airliner concepts.
By Bjorn Fehrm September 21, 2020, © Leeham News: Airbus held a webcast today, announcing three zero-emission airliner concepts called the ZEROe line (Figure 1). The two conventional designs, the turbofan airliner and the turboprop use hydrogen as… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 9. Hydrogen Gas Turbines
September 18, 2020, ©. Leeham News: In our series on hydrogen as an energy store for airliners we analyze the conversion of the present Turbofan and Turboprop airliner engines to hydrogen as fuel instead of carbon-based fuels. We… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 8. Fuel cell electric or Turbofan propulsion?
September 11, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliners we look at whether we use an LH2 burning Turbofan as propulsion or as the EU study proposed, a Parallel Hybrid… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 7. The fuel system.
September 4, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliners we look at the rest of the fuel system after we looked at the hydrogen tanks over the last weeks. The… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 6. Tank placement.
August 28, 2020, ©. Leeham News: In our series on Hydrogen as an energy store for airliners we look at the challenge of placing the hydrogen tanks efficiently. Different from carbon fuels, liquid hydrogen needs specially shaped and… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 4. Hydrogen safety.
August 14, 2020, ©. Leeham News: In our series on hydrogen as an energy store for airliners we are closing in on the design problems for a hydrogen-fueled airliner. One of the aspects we must understand before discussion… Read More