Bjorn’s Corner: Sustainable Air Transport. Part 16. Thrust generation

April 22, 2022, ©. Leeham News: Last week, we examined propulsion system alternatives and their principal advantages and disadvantages. Now we go deeper into these alternatives. All propulsion systems for aircraft use a propulsion device like a propeller… Read More

Pontifications: Rolls-Royce and the Next Boeing Airplane

April 18, 2022, © Leeham News: The aviation industry is waiting to see what Boeing will do when it comes to a new airplane. The Next Boeing Airplane (NBA), whatever form it takes, will largely be driven by… 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

2022 Forecast: C919 EIS unlikely before 2023-24

Subscription Required By Scott Hamilton Introduction Jan. 17, 2022, © Leeham News: COMAC, the Chinese aerospace company developing the C919, suffered yet another setback last year. It hoped to deliver the first aircraft, designed to compete with the… Read More

Pontifications: Assessing the future of stand-alone GE Aviation

By Scott Hamilton Nov. 22, 2021, © Leeham News: GE Aviation’s (GEA) spin-off takes the corporate burden off its back and opens that way to move forward just as commercial aviation should be over the COVID-19 pandemic. The… 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

Pontifications: Does Embraer’s turboprop design foretell what Boeing needs?

Aug. 23, 2021, © Leeham News: Could Embraer’s new turboprop design have formed the basis for the 100-150 seat Boeing single-aisle aircraft had the joint venture proceeded? A former Boeing engineer thinks it might have. The aft-mounted, open… Read More

Pontifications: A deeper hole for the Boeing 737 MAX market share

Aug. 9, 2021, © Leeham News: Boeing’s 737 MAX market share vs Airbus is in a deeper hole than may be generally realized. Aviation Week last week complied a list of the top seven low-cost carrier airlines in… Read More

Sunset of the Quads, Part 3

Subscription Required By Vincent Valery Introduction   Aug. 20, 2020, © Leeham News: Last week, we compared the economics of the 747-400 and the A380 on the Los Angeles to Sydney route. We now turn our attention to Airbus’… Read More