Engine Development. Part 7. Engine reliability changes the aircraft market

Subscription Required By Bjorn Fehrm Introduction September 29, 2022, © Leeham News: The 1970s saw the introduction of the High Bypass engine for the medium/long range Boeing 747, Douglas DC-10, and Lockheed Tristar, with Airbus A300 employing an… Read More

Engine Development. Part 3. The early turbofans.

Subscription Required By Bjorn Fehrm Introduction September 1, 2022, © Leeham News: Last week, we looked at the motivation to change from propeller engines to jet engines as higher cruising speeds were sought for airliners. We learned the… Read More

Boeing prepares to swap engines from MAX inventory to new production

Subscription Required By Scott Hamilton Aug. 15, 2022, © Leeham News: Boeing CEO David Calhoun says the company won’t build 737 gliders. That’s what airplanes are called as they exit final assembly without engines. The mitigation ironically comes… Read More

Airbus, Boeing, Embraer, ATR orders at Day Two of Farnborugh

By Alex Derber (c) Airfinance Journal, July 19, 2022 Commercial aircraft – Airline investor 777 Partners placed firm orders for 30 737 Max 8200 aircraft and agreed to a further 36 commitments for the high-density Max model. The… Read More

Flight report for the Boeing B-29

By Scott Hamilton May 24, 2022, © Leeham News: I’ve ridden in the Boeing B-17 and the Consolidated B-24 bombers. There’s the Douglas DC-3, which I had a chance to pilot, the Ford Tri Motor, the Convair 240,… Read More

CFM’s Open Fan targets mid-2030s for entry into service

Subscription Required By Scott Hamilton CFM RISE Open Fan. Credit: CFM. Feb. 1, 2020, © Leeham News: GE Aviation appears confident the CFM open rotor engine—a concept that was flight tested back in the 1980s—is an engine whose… Read More

Pontifications: Bringing some reality on electric airplanes

Nov. 15, 2021, © Leeham News: The momentum and press about electric airplanes is spinning out of control. Earlier this month, there was an article from one of the most respected news organizations by a reporter who apparently… Read More

Pontifications: Biofuels, hydrogen, batteries are nice but far in the future. Solution exists now.

Oct. 11, 2021, © Leeham News: EcoAviation was the Number One topic at the Oct. 3-5 IATA AGM in Boston. IATA, the International Air Transport Assn., set a number of lofty goals to remove carbon emissions from commercial… Read More

De-carbonisation of air transport is ON

By Bjorn Fehrm July 20, 2021, © Leeham News: Last week was a game-changing week for air transport. Three events synchronized to trigger it. EU presented 13 policies to achieve net-zero greenhouse gas emissions by 2050 with concrete… Read More

The A350, Part 9: The A350-1000 versus 777-300ER

Subscription Required By Bjorn Fehrm Introduction   March 11, 2021, © Leeham News: Last week, we started analyzing the Airbus A350-1000 and compared it with the Boeing 777-300ER. We now fly the airplanes on a demanding route, close to… Read More