Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- How good is the C929? Part 2. April 24, 2025
- Boeing First Quarter Results Update: China is 10% of the backlog, with 500 in “Unidentified” April 24, 2025
- Boeing First Quarter Results: Tariffs, Return flights, $10.55bn asset sale April 23, 2025
- RTX Q1 2025 Earnings: GTF Talk Takes A Back Seat To Tariffs April 22, 2025
- Tariffs Tumult Takes Over GE Aerospace Q1 2025 Earnings Call April 22, 2025
Bjorn’s Corner: New aircraft technologies. Part 9. Engine core advances
By Bjorn Fehrm.
April 21, 2023, ©. Leeham News: This is a summary of the article New aircraft technologies. Part 9P. Engine core advances. The article discusses how developments for the next-generation airliner engine cores will increase the thermal efficiency of next-generation engines.
Figure 1. The Pratt & Whitney PW1100G engine with its compact core enabled by a geared high RPM design. Source; Pratt & Whitney.
Bjorn’s Corner: New aircraft technologies. Part 9P. Engine core advances
Subscription required
By Bjorn Fehrm
April 21, 2023, ©. Leeham News: This is a complementary article to Part 9. Engine core advances. It discusses in detail the next-generation propulsion system cores and what efficiency improvements to expect from different technological advancements.
The Airbus A220-500, a deep-dive analysis, Part 2
Subscription required
By Bjorn Fehrm
Jan. 23, 2023, © Leeham News: Following Thursday’s article about an up-and-coming Airbus A220-500, we now look at the operational cost for the A220-500 and compare it with the A320neo it should replace.
We put the data we discussed in Thursday’s article in our Aircraft Performance and Cost model, fly the aircraft on a typical single-aisle mission and look at the results.
Figure 1. A rendering of an A220-500 that takes 157 passengers. Source; Leeham Co.
Summary:
- The A220-500 would be a viable replacement for an A320neo.
- With the changes/improvements we discussed, it beats the A320neo on operational costs. The differences are not of the speculated level, however.
Airbus CCO: “When,” not “if” A220-500 comes; a deep-dive analysis
Subscription Required
By Scott Hamilton
Jan. 18, 2023, © Leeham News: Airbus chief commercial officer Christian Scherer has been open: it is a matter of “when,” not “if” Airbus proceeds with a stretched A220-500.
A220-500. Credit: Leeham News.
The A220-500 would be the third member of the A220 family. The A220-100 is a 110-seat airplane in a typical two-class configuration. The A220-300 seats 135 passengers. The A220-500 would seat around 157, competing head-on with the Airbus A320neo at 152 and the Boeing 737-8 at 164.
The -500 was projected by Bombardier as the CS500. Bombardier focused its commercial aviation future on the C Series. In doing so, it neglected sales efforts on the CRJ and Q400 regional jet and turboprop. Development of the C Series, like programs at Airbus and Boeing, ran billions of dollars over budget. Developed concurrently with two corporate jet programs that also ran well over budget, Bombardier was on a path toward bankruptcy.
Airbus purchased a controlling interest in the CSeries program in 2017 and now owns 75% of the program. But so far, Airbus hasn’t stemmed the losses that began under Bombardier. Without the heft of Airbus’ buying power, Bombardier entered costly contracts with suppliers. Airbus has been renegotiating the contracts, with some success, but not enough. Ramping production up to 14 a month by 2025 from the current 6/mo is a key goal. Demand is there and the higher rate will lower costs.
But the A220-500 will compete with Airbus’ own A320neo. So, the plan to launch the A220-500 has this cloud over the decision.
Some believe that the A220-500 will be so much more efficient than the 737-8 that it will “kill” Boeing’s backbone airplane. LNA doesn’t agree.
This article is the first of three that analyzes the A220’s position in the market and the economics of a potential A220-500 vis-à-vis the A320neo and 737-8 MAX.
Summary
- Is the A320neo already on its way out, prompting plans for the A220-500?
- Talk of adding CFM LEAP to provide an engine choice.
- How does A220-500 compare economically with A320neo, 737-8?
Pontifications: A lost decade for new airplanes
By Scott Hamilton
Subscription Required
Dec. 5, 2022, © Leeham News: In September 2020, LNA wrote that commercial aviation was facing a “lost decade.”
The impetus for this prediction was the COVID-19 pandemic crisis.
“Commercial aviation is facing a lost decade due to COVID,” we wrote. “Yes, most forecasts target 2024-2025 as returning to 2019 passenger traffic and aircraft production levels. However, LNA in July published its own analysis indicating full recovery may not occur until 2028.”
Nobody predicted that effective vaccines would emerge as quickly as they did. Drug makers in the US and Europe moved heaven and earth to produce vaccines to fight COVID-19. These have been, by and large, extremely effective. (I’ve had two shots and three boosters and have not caught COVID, despite being at one major conference with 13,000 people.)
China created its own vaccine, which failed to stem the tide there. President Xi quickly adopted total lockdowns at the first sign of outbreaks. Despite this, China is now setting records for new infections. Commercial aviation recovery there remains underperforming. China’s performance illustrates the underlying reasoning we had in concluding commercial aviation was facing a lost decade.
This sector still faces a lost decade, though for some fundamentally different reasons.
UPDATE: Calhoun upbeat on cash flow despite fifth consecutive quarterly loss
By Bryan Corliss
Oct. 26, 2022, (c) Leeham News: The Boeing Co. posted a loss from operations of nearly $2.8 billion for the third quarter, citing losses on fixed-price defense development programs that offset an overall 4% growth in revenues.
The consensus of Wall Street analysts earlier this week was that Boeing would announce profits of 13 cents a share and would break a streak of four consecutive losing quarters. Instead, Boeing posted a loss of $5.49 a share.
However, in a conference call with stock analysts later in the morning, Calhoun was upbeat, emphasizing Boeing’s positive operating cash flow of nearly $3.2 billion for the quarter.
“This quarter was a big one for us,” he said. “We hit a marker … to generate positive cash flow.”
Boeing booked losses of roughly $1.95 billion on two defense programs, CFO Brian West said: KC-46 tankers and new Air Force One presidential transports. Both are fixed-price contracts for commercial jet conversions that forced Boeing to eat any cost overruns.
“We aren’t embarrassed by them,” Calhoun said. “They are what they are.”
But in an interview with CNBC’s Phillip LeBeau Wednesday, Calhoun said Boeing will not do fixed-price defense contracts in the future. “That is not our intent.”
Summary:
- BCA: 737 and 787 deliveries resume; engines in short supply
BDS: ‘Labor instability’ hurts key programs
Calhoun: Boeing ‘supports China’ but is re-marketing planes
Read more
Engine Development. Part 9. Gearbox or not?
Subscription Required
By Bjorn Fehrm
Introduction
October 13, 2022, © Leeham News: In our series, we look at the development of the latest single-aisle engines. Should these be geared? What do you gain and risk with a geared design? Is this a new development, or has it been around for a long time?
We examine the development of single-aisle engines since 2000, their fuel efficiency, and operational reliability.
Summary
- A geared design fixes some fundamental problems in a two-shaft turbofan.
- CFM proves you could just as well further develop what you have.
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 updated variant of the DC-10 engine for medium range missions.
In the following decades, these engines introduced improved technology and matured into new levels of reliability. With the increase in reliability came changes in how long-range aircraft were designed.
Figure 1. The Boeing 777-200 was introduced by United Airlines in 1995. Source: Wikipedia.
Summary
- The engine development after the introduction of the high bypass turbofans in the 1970s focused on reliability and higher efficiency rather than new design principles.
- The change in reliability made the two-engined long-range aircraft the winner over three and four-engine aircraft.
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 or a fan to generate forward thrust. We use this article to understand how these work and their characteristics before we go into how we create the shaft power to drive them.
Figure 1. The propulsive efficiency as a function of speed for different thrust generating concepts. Source: Aircraft propellers, is there a future? MPDI document.
Pontifications: The soup du jour
March 14, 2022, © Leeham News: You might call it the soup du jour.
By Scott Hamilton
EcoAviation is all over the place at aviation conferences these days. It was a key topic at last October’s Annual General Meeting of the International Air Transport Association (IATA). Likewise at last month’s annual conference of the Pacific Northwest Aerospace Alliance (PNAA). EcoAviation also was an element of the Speed News conference in Los Angeles early this month and at another event the following week. Investor Day events now routinely include ecoAviation discussion.
This is all well and good, but at last, some key members of the industry are putting caution and realism to the pie-in-the-sky stuff that is sucking up investment like the Dot Com era a few decades ago. Only a few ideas and technologies will be successful.