Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Airbus 1Q2024 results: Airbus CEO: “A350 in-service experience drives positive reputation and orders” April 25, 2024
- A350-1000 or 777-9? Part 3 April 25, 2024
- Boeing CEO promises company is turning around…again April 24, 2024
- Solid start for stand-alone GE Aerospace despite cuts to LEAP output April 23, 2024
- SPEEA, Boeing at impasse over safety program, union says April 23, 2024
Bjorn’s Corner: Supersonic transport revival, Part 7
September 21, 2018, ©. Leeham News: In the last Corner we looked at the heating of the aircraft when cruising at high Mach. Now we will address the biggest problem for supersonic airliners, the engines and nacelles.
Bjorn’s Corner: Supersonic transport revival, Part 6
September 14, 2018, ©. Leeham News: In the last Corner we looked at the change of aerodynamic center when passing Mach 1 and the resulting trim change. We also discussed the high pitch angle of a delta like… Read More
Bjorn’s Corner: Supersonic transport revival, Part 5
September 7, 2018, ©. Leeham News: In the last Corner we looked at the drag hump which is created by several supersonic effects when an SST (SuperSonic Transport) passes Mach 1. Now we will look at other aerodynamic… Read More
Bjorn’s Corner: Supersonic transport revival, Part 4
August 31, 2018, ©. Leeham News: In the last Corner we discussed supersonic lift wave drag and how suddenly the length aspect ratio is more important than wingspan aspect ratio. Now we talk about the problem of going… Read More
Bjorn’s Corner: Supersonic transport revival, Part 3
August 24, 2018, ©. Leeham News: In the last Corner we discussed how supersonic wave drag can be higher than any other drag for a blunt fuselage trying to fly at supersonic speeds. If we try to fly… Read More
Bjorn’s Corner: Supersonic transport revival, Part 2
August 17, 2018, ©. Leeham News: In the last Corner we outlined several challenges facing a supersonic airliner or business jet. We will now go through these challenges one by one. We start with the aerodynamic challenge.
Bjorn’s Corner: Supersonic transport revival
August 10, 2018, ©. Leeham News: The interest in civil supersonic flight has been revived in the last years. Aerion Supersonic is well advanced with its AS2 supersonic business jet and there are several projects looking at restarting… Read More
Aerion’s supersonic engine presented
By Bjorn Fehrm Subscription Required Introduction February 26, 2018, ©. Leeham Co: Aerion Supersonic’s CEO and Executive Chairman, Brian Barents, presented the first pictures of the Aerion AS2 biz jet’s engine at the recent PNAA conference in Seattle. It’s… Read More
The Supersonic dilemma
By Bjorn Fehrm December 20, 2017, ©. Leeham Co: The Super Sonic Transport (SST) has a new spring. Aerion announced its new partner Lockheed Martin Friday and Boom got a new investor in Japan Airlines (JAL) the week before…. Read More
Bjorn’s Corner: New engine development. Part 4. Propulsive efficiency
April 19, 2024, ©. Leeham News: We have started an article series about engine development. The aim is to understand why engine development now dominates new airliner development when it comes to the needed calendar time for development… Read More