Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- The Boeing 767 Cross Section, Part 1 November 24, 2022
- Movie Review: Devotion November 21, 2022
- China will accelerate development of its commercial aerospace sector November 21, 2022
- Bjorn’s Corner: Sustainable Air Transport. Part 46. eVTOL comparison with helicopter November 18, 2022
- The economics of a 787-9 and A330-900 at eight or nine abreast November 16, 2022
Bjorn’s Corner: The challenges of airliner development. Part 11. The Program Plan.
July 9, 2021, ©. Leeham News: Now that we have done the basic market research we should scope the program. To do this we need to understand what aircraft we will develop and to what certification rules. Our… Read More
The true cost of Electric Aircraft. Part 2.
Subscription Required By Bjorn Fehrm Introduction July 8, 2021, © Leeham News: Last week, we looked at the cost of running an electric 19 seat airliner based on energy stored in batteries. We found the energy costs were… Read More
The true cost of Electric Aircraft
Subscription Required By Bjorn Fehrm Introduction July 1, 2021, © Leeham News: In our Friday Corners, we analyze the development challenges of aircraft. We will launch a concrete project Friday where we intend to develop a 19 seat… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 33. Wrap-up: The Eco-system
April 16, 2021, ©. Leeham News: Last week, we wrapped up the operational part of sustainable air transport using hydrogen as an energy source. Now we look at where we are with the all-important Eco-system. It has many… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 32. Wrap-up: Going forward
April 9, 2021, ©. Leeham News: Last week we made a summary of the history of initiatives for sustainable aviation, now we look at the likely developments over the next 10 years. What is the likely development for… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 31. Wrap-up: Where we stand
April 2, 2021, ©. Leeham News: It’s time to wrap up our series on the hydrogen airliner alternative for Sustainable Commercial Aviation. We review the status for sustainable aviation as of today, then look at the future next… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 30. Integrated nacelles.
March 26, 2021, ©. Leeham News: This week, we look at combining the propulsion and hydrogen tank in an integrated nacelle as Airbus proposes in Figure 1. Airbus calls it its “pod” solution. What are the advantages, and… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 29. Gas turbine heat management.
March 19, 2021, ©. Leeham News: This week we look deeper into the gains we can have for a hydrogen gas turbine-propelled airliner. The ideas stem from the work of Chalmers Professor T. Grönstedt’s team in different EU… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 28. Airbus priorities
March 12, 2021, ©. Leeham News: I had the chance to talk about Sustainable Air Transport with Airbus VP Zero Emission Aircraft, Glenn Llewellyn, in the week. The discussion centered around Airbus’ overall direction and the targets with… Read More
Bjorn’s Corner: The challenges of hydrogen. Part 27. Fuel cell APU gains
March 5, 2021, ©. Leeham News: We have discussed different auxiliary power generation principles for a hydrogen aircraft over the last weeks. We found a fuel cell auxiliary power system has many attractions, one being the possibility of… Read More