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 4. Propulsive efficiency April 19, 2024
- Boeing unlikely to meet FAA’s 90-day deadline for new safety program April 18, 2024
- Focus on quality not slowing innovation, says GKN April 18, 2024
- Boeing defends 787, 777 against whistleblower charges April 17, 2024
- Dissecting Boeing CEO’s statement next new airplane will cost $50bn April 15, 2024
Bjorn’s Corner: Why e in ePlane shall stand for environment, Part 14. Parallel Hybrid.
March 20, 2020, ©. Leeham News: In this week’s Corner, we continue our analysis of what it means for a regional airliner to go from Turbofan propulsion to Hybrid Electric propulsion. Last week, we looked at a Serial… Read More
Bjorn’s Corner: Why e in ePlane shall stand for environment, Part 13. Serial Hybrid.
March 13, 2020, ©. Leeham News: In this week’s Corner, we address an often forgotten aspect of Electric and Electric-Hybrid aircraft design. The battery as an energy source, as the only or assisting source, has the same weight… Read More
Bjorn’s Corner: Why hybrid cars work and hybrid airliners have challenges
June 14, 2019, ©. Leeham News: In last week’s Corner we discussed why aircraft with batteries as an energy source will be short ranged for decades to come. The battery energy density is too low and it won’t… Read More
Airbus, Rolls-Royce and Siemens develops Hybrid-Electric demonstrator
By Bjorn Fehrm November 29, 2017, © Leeham Co.: Airbus, Rolls-Royce and Siemens yesterday announced they will fly a hybrid-electric demonstrator by 2020, E-Fan X (Figure 1). The aircraft, a BAe 146 four engine regional jet, will have… Read More
Outlook 2024: Milestone year for alternative energy development
Subscription Required By Scott Hamilton and Bjorn Fehrm Jan. 18, 2024, © Leeham News: Twenty twenty four is 10 years after the Sustainable Aircraft discussions started when Airbus flew its battery-powered E-Fan before the world’s OEMs and press… Read More
Outlook 2024: Can ATR finally achieve its production target?
By Judson Rollins Jan. 15, 2024, © Leeham News: For the second year in a row, ATR fell short of its stated production targets. ATR delivered just 25 new aircraft in 2022 and 35 in 2023. The latter… Read More
2024 Outlook: A Mixed Bag for Propulsion OEMs
Subscription Required By Chris Sloan and Gordon Smith January 11, 2033, © Leeham News: In 2023, a slew of problems plagued propulsion providers, with Pratt & Whitney’s GTF Engine and supply-chain shortcomings grabbing the bulk of negative headlines… Read More
Outlook 2024: Embraer’s continued recovery
Subscription required By Bjorn Fehrm January 8, 2024, © Leeham News: Embraer was hit by a double whammy before and during COVID. The non-closure of the merger of Boeing’s and Embraer’s Commercial Aircraft Divisions and the halving of… Read More
Bjorn’ s Corner: New aircraft technologies. Part 43. Delivery
December 22, 2023, ©. Leeham News: We are discussing the different phases of a new airliner program. After covering the Design, Prototype phase, and Production, we now look at the first deliveries. After about seven to nine years… Read More
The Exception to the Green Propulsion Rule
Subscription required By Bjorn Fehrm November 30, 2023, © Leeham News: The interest in Green alternative propulsion for airliners started in earnest at Farnborough Air Show 2014, where Airbus flew the E-Fan battery-electric aircraft. What followed was a… Read More