Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Bjorn’s Corner: Air Transport’s route to 2050. Part 21. May 9, 2025
- Does an A220-500 need a new wing and engines? Part 2. May 8, 2025
- Embraer downplays tariff impact on 2025 results May 6, 2025
- JetZero readies effort for private equity fund raising May 5, 2025
- Bjorn’s Corner: Air Transport’s route to 2050. Part 20. May 2, 2025
The Airbus A350F versus Boeing’s 777-XF.
Subscription Required
By Bjorn Fehrm
Introduction
August 5, 2021, © Leeham News: Two weeks ago we compared the launched Airbus A350 freighter with Boeing’s in-service 777F. We found the 777F is a freighter with a very high payload capability, but it faces an ICAO emission and noise ax by 2028, should the present engines be kept.
Boeing’s CEO David Calhoun recently said a freighter version of the 777X might replace the 777F. With seven years to 2028, a development decision for a 777-XF is then imminent. We use our performance model to look at how an A350F and 777-XF would compare.
Summary
- A new Boeing 777-XF freighter, based on the 777-8 (picture), has to equal or beat an Airbus A350 freighter both on payload and economics.
- Beating an A350F on capacity and payload is straightforward, the 777-8 is the larger aircraft. On operating costs, it’s a tighter race.
Bjorn’s Corner: The challenges of airliner development. Part 11. The Program Plan.
By Bjorn Fehrm, Henry Tam, and Andrew Telesca.
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 market research tells us to develop a 19 seat aircraft that can operate as a passenger and/or cargo aircraft outside the US and as cargo aircraft in the US. This enables us to certify it to FAA Part 23 and the equivalent rules of other National Aviation Authorities where we want to sell the aircraft.
Figure 1. The new Cessna SkyCourier Cargo/19 seat utility airliner. Source: Cessna.
Bjorn’s Corner: The challenges of airliner development. Part 2. Why Certification?
By Bjorn Fehrm, Henry Tam, and Andrew Telesca.
May 7, 2021, ©. Leeham News: The major challenge with developing commercial aircraft is the certification process. You can’t just develop the aircraft based on your unique knowledge and ideas, you must do it according to a detailed rulebook written with the knowledge from thousands of accidents and incidents.
From the beginning of the design process when you’re thinking about how big your engines would need to be or whether you can carry enough passengers to have a competitive advantage the certification rules influence (and sometimes govern) your design decisions.
Beyond just scrutiny of the design of the vehicle and its components, the process by which it is designed, the production site & methods used, and the organization doing the work all go through certification processes.
Figure 1. The FAA certification rules website. Source: FAA.