Safran overcomes supply chain woes as revenues soar

By Tom Batchelor February 15, 2024, © Leeham News: French engine, equipment and interiors specialist Safran said revenues soared by more than a fifth in 2023 despite a “challenging supply chain environment” and inflationary pressures. Announcing the company’s… Read More

Bjorn’s Corner: Engine efficiency revisited

18 December 2015, © Leeham Co:Part of the discussion following last week’s article around quad or twin engine airliner designs was about engine efficiency and specifically around the engine’s thermal efficiency as a function of Pressure Ratio, PR. I… Read More

Bjorn’s Corner: Engine efficiency

18 September 2015, ©. Leeham Co: The debate around the market’s two single aisle combatants is quite heated, with fans of the one side saying “the limited space for a high bypass engine on the 737 MAX will… Read More

Fundamentals of airliner performance, Part 3

By Bjorn Fehrm In our first article about how to understand the performance of a modern airliner we defined the main forces that are acting on an aircraft flying in steady state cruise. In our clinic we use the… Read More

Odds and Ends: MAX EIS dates; McNerney on business climate; A320 Tianjin plant only breaks even

MAX EIS dates: Aviation Week has this story that lists the planned MAX EIS dates: 737-8, 2017 (we previously reported 4Q2017); 737-9 in 2018 and 737-7 in 2019. AvWeek also reported the bypass ratio for the LEAP-1B is… Read More