Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Bjorn’s Corner: New engine development. Part 23. Development risks. September 6, 2024
- If a strike occurs, here’s what Boeing can do September 5, 2024
- China banks on C919, but numbers say it still needs Boeing September 2, 2024
- Bjorn’s Corner: New engine development. Part 22. High Turbine technologies. August 30, 2024
- The A330 for medium haul or twice the frequency with A321XLR? Part 1 August 29, 2024
Bjorn’s Corner: The challenges of hydrogen. Part 22. Hydrogen fuel cells
January 29, 2021, ©. Leeham News: Over the last weeks, we looked at Center of Gravity (CG) problems with rear fuselage liquid hydrogen tanks as used in Airbus’ ZEROe turbofan airliner concept. We can conclude that the CG… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 21. Hydrogen airliner weight shift
January 22, 2021, ©. Leeham News: In last week’s Corner, we looked at how the hydrogen consumed in the rear fuselage tanks changes the airliner’s Center of Gravity (CG). Now we discuss how this change of Center of… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 20. Hydrogen airliner weight shift
January 15, 2021, ©. Leeham News: In last week’s Corner, we looked at how hydrogen consumed in the rear fuselage tanks of Airbus’ ZEROe concept affect the airliner’s efficiency. Now we look at other aspects of the rear… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 19. Hydrogen airliner weight shift
January 8, 2021, ©. Leeham News: In our Corner before Christmas we discussed the hydrogen tank placement at the rear of the aircraft for Airbus’ ZEROe concept turbofan aircraft. We now calculate how the weight transfer when emptying… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 17. Hydrogen airliner program
December 11, 2020, ©. Leeham News: We use this Corner to define the time table for our hydrogen airliner program and for what areas we need to conduct risk-reducing research before we embark on an actual design. As… Read More
Bjorn’s Corner: The challenges of Hydrogen. Part 16. A Hydrogen airliner
December 4, 2020, ©. Leeham News: To dig a level deeper into the challenges of hydrogen airliners, as a next step we design such a plane (on a high level), now that we have covered the basics. It… Read More
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.