Supply chain focus: Safran’ s first 2020 quarter

By Bjorn Fehrm May 5, 2020, ©. Leeham News: Next out in our COVID19 supply chain focus is Safran Group. Safran, together with GE Aviation, is the largest supplier of turbofan engines to the World’s airliners. Their success… Read More

Engine OEMs forecast big hit to aftermarket revenue

Subscription Required Now open to all readers. By Scott Hamilton May 5, 2020, © Leeham News: The COVID crisis will damage the aerospace aftermarket in ways that are only beginning to be understood. As key companies report 1Q… Read More

Pontifications: Engine problems are getting worse

May 14, 2018, © Leeham News: The engine problems are getting worse. These have moved beyond the technical issues with the Rolls-Royce Trent 1000, GE Aviation GEnx, Pratt & Whitney GTF and CFM56. The problems are trickling down… 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

Bjorn’s Corner: Aircraft engine maintenance, Part 1

March 3, 2017, ©. Leeham Co: We will now go through how airline turbofans are maintained. First, we will describe the typical work which is performed, then look into the markets for engine maintenance. In the markets for engine… Read More

Bjorn’s Corner: Aircraft engines in operation, Part 5

February 17, 2017, ©. Leeham Co: In our journey of an airline engine’s life, we will now look at the maintenance which is necessary to keep it fit for flight. An engine is only in top condition once in… Read More

Bjorn’s Corner: Aircraft engines in operation, Part 2

January 27, 2017, ©. Leeham Co: In the last Corner, we began looking at the in-service operation of a Turbofan. We covered how thrust and fuel consumption varies in the different phases of an airliner’s mission. Now we will… Read More

Bjorn’s Corner; Turbofan engine challenges, Part 7

December 16, 2016, ©. Leeham Co: After the turbine comes the engine’s exhaust system. This is where the thrust characteristics of the engine are formed. It is also the environment that defines the back pressure for the fan and… Read More

Bjorn’s Corner; Turbofan engine challenges; Part 6

December 08, 2016, ©. Leeham Co: We have now come to the turbine in our trip through a modern turbofan.  The turbines make up the rear of the engine, before the propelling nozzle. The turbines are the workhorses in… Read More

Bjorn’s corner; Turbofan engine challenges; Part 2

November 04, 2016, ©. Leeham Co: We will now start to go through a modern turbofan airliner engine and look at the technologies which are used and what are their technical challenges. We will start today with the engine… Read More