Bjorn Fehrm

1 week ago | leehamnews.com | Bjorn Fehrm

May 30, 2025, ©. Leeham News: We do a Corner series about the state of developments to improve the emission situation for Air Transport. We try to understand why development has been slow. We examined alternative, lower-emission propulsion technologies three weeks ago and compared them to the industry’s typical improvement in fuel consumption over time the following week. Last week, we examined the improvements that SAF can offer by 2050.

1 week ago | leehamnews.com | Bjorn Fehrm

Does an A220-500 need a new wing and engines? Part 3. Subscription requiredBy Bjorn FehrmMay 29, 2025, © Leeham News: We are writing an article series about stretching the A220 to a capacity in the A320neo range. The idea is to replace the A320neo over time to make room in the A320/321 production lines for more A3211s and extend the A220 family with a larger variant. We analyzed what we need to change to bring the capacity to the level of the A320neo.

2 weeks ago | leehamnews.com | Bjorn Fehrm

May 23, 2025, ©. Leeham News: We do a Corner series about the state of developments to improve the emission situation for Air Transport. We try to understand why development has been slow. We have since we started in October last year looked at:Alternative, lower emission, propulsion technologies, ranging from electric aircraft with batteries as energy source, different propulsion hybrids, and new concepts for Jet-Fuel and Hydrogen gas turbine engines.

2 weeks ago | leehamnews.com | Bjorn Fehrm

By Bjorn FehrmMay 21, 2025, © Leeham News: Boeing Chief Aerospace Safety Officer Don Ruhmann publishes his 2025 Safety Report today. Leeham was present in briefings both on the report content (this article) and how the safety work is progressing in view of recent problem areas (a Monday article). The report describes the work of the dedicated Chief Aerospace Safety Office, established in 2021. The office is focused on preventing accidents by fostering an active safety culture.

3 weeks ago | leehamnews.com | Bjorn Fehrm

May 16, 2025, ©. Leeham News: We do a Corner series about the state of developments to improve the emission situation for Air Transport. We try to understand why development has been slow. We have since we started in October last year looked at:Alternative, lower emission propulsion technologies, ranging from electric aircraft with batteries as energy source, different propulsion hybrids, and new concepts for jet-fuel and Hydrogen gas turbine engines.