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By Bjorn Fehrm
June 22, 2023, © Leeham News: Every announcement from aircraft deals, OEM updates, or supply chain news now has the words Sustainable/Sustainability injected in every second sentence. It doesn’t matter what the subject is; if it’s about a gas-guzzling way of transporting people at supersonic or even hypersonic speeds or at the other end in an eVTOL which is only as fast as your car on a US highway.
What is the real news about making our air transport system less polluting behind this misuse of the buzzwords? You have to search behind the headlines and the announcements that you know will not turn the dial. Let’s tour the Paris Air Show 2023 and look at the real developments in Sustainability.
Figure 1. First flight of Universal Hydrogen’s DH8-300 with a hydrogen propulsion system on the starboard side. Source: Universal Hydrogen.
By Bryan Corliss
June 21, 2023, © Leeham News – Machinists Union members at Spirit AeroSystems in Wichita have overwhelmingly rejected a proposed four-year contract, setting the stage for a strike.
The contract between Spirit and IAM Local 839 expires at 12:01 a.m. Saturday. However, Spirit said Wednesday night that it would shut down production starting with Thursday’s first shift.
IAM members were not to report to work Thursday, the company said. They will get paid for their regular shifts, but all overtime is canceled.
Local 839 said that 79% of union members who cast ballots voted to reject Spirit’s offer, and 85% voted to authorize a strike.
“Most of our members have concluded the company’s offer is unacceptable,” union officers said.
Spirit leadership said it was “disappointed” by the outcome.
“We know that no one wins in a work stoppage; however, we respect the rights of our represented employees,” it said in a statement. “Despite this setback, we are not distracted from the task at hand. We look forward to continued meetings with IAM leadership.”
In a statement to Wichita-area news outlets, union officers said they would “regroup and begin planning the following steps to bring the company back to the table.”
There was no word Wednesday night whether the two sides had plans to meet.
A strike at Spirit would have significant ramifications throughout the aerospace industry. The company supplies Boeing with 70% of the aerostructures for the 737, and without those fuselages coming by train from Kansas, work at Boeing’s Renton factory will eventually come to a halt, impacting airlines who are expecting jets, as well as other suppliers who provide parts, components and subassemblies for Boeing’s best-selling commercial aircraft. Spirit also builds the nose sections for the 787, 767 and 777.
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The union’s negotiating committee had recommended approval on the Spirit offer, which it received on Friday.
However, the contract seemed in trouble during a Wednesday morning union meeting, prior to the vote. The Wichita Eagle reported that workers made paper airplanes out of the pages of the contract summary, and covered the floor of the arena where they were meeting with them. In addition, Wichita station KWCH-TV published a photo of its website of workers wearing t-shirts emblazoned with the message “That’s a Big No.”
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By Bryan Corliss
June 19, 2023, © Leeham News – Roughly 6,000 Machinists Union members at Spirit AeroSystems in Wichita will vote Wednesday on a proposed four-year contract that would significantly increase pay for hourly workers.
The bargaining committee for IAM Local 839 is recommending that its members accept the deal.
“This is not an easy decision, but it is one that we believe is a good one,” the committee wrote in a letter to members on Friday.
It noted, however, that “the decision to accept or reject this offer is up to the membership,” and added that however the vote goes, the leadership “stands 100%” behind what the members decide.
At least some of those members are vocally urging the deal be rejected.
“How on earth did you think this is an offer we should accept?” one worker wrote on Local 839’s Facebook page. “You have betrayed us.”
The current contract expires just after midnight Friday, June 23.
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June 16, 2023, ©. Leeham News: This is a complementary article to Part 17. Airframe with lower induced drag. It discusses in detail the simulations we have done on a Truss Braced Wing, using our Aircraft Performance and Cost model to compare it to today’s wings and alternative future concepts.
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By Bjorn Fehrm
June 15, 2023, © Leeham News: In our series on fundamental costs factors that make up Cash Operating Cost, COC (Fuel, Maintenance, Airway/Airport fees, Crew costs), we have started analyzing if the size related cost factors also apply to green propulsion airliners and if the trends stay the same or change.
We use the Heart Aerospace ES-30 project as an example of a battery-based airliner with range extenders. Last week we developed the fundamental aero data for the aircraft with our Aircraft Performance and Cost model; now, we fly representative sectors and look at the energy and fuel consumptions compared to a similar-sized turboprop airliner.
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By Bjorn Fehrm
June 8, 2023, © Leeham News: We have analyzed the costs factors that make up Cash Operating Cost, COC (Fuel, Maintenance, Airway/Airport fees, Crew costs), and how these vary with different size airliners. The aim was to search for fundamental trends and if these disadvantaged a smaller airliner versus a larger one.
We found that a smaller airliner (we analyzed from 190 seats down to 9 seats) has structural cost disadvantages versus a larger model. The analysis was made with conventional gas turbine-propelled planes so as not to complicate the work. Now we introduce airliner types with green propulsion concepts and see if the trends stay the same or change.
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By Scott Hamilton
June 5, 2023, © Leeham News: Boeing continues to face a plethora of paperwork to certify the 737 MAX 7 this year. Officials hope to certify the largest member of the family next year, but won’t commit to this goal.
And there is no reason, at this time, to believe the 777-9 will require an entirely new type certificate despite major changes to the airplane.
So says Mike Fleming, senior vice president-Development Programs and Customer Support. Fleming made his remarks at Boeing’s media briefing on May 31 in advance of the Paris Air Show, which beings in two weeks.
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By Bjorn Fehrm
June 1, 2023, © Leeham News: We attended a briefing on Embraer’s strategy for the years ahead last week. The company has regrouped after the failed Joint Venture with Boeing in 2020 and the tough COVID years.
The focus has been on streamlining operations after the carve-out of the Commercial Aviation division was reversed. The reintegration was followed by efficiency projects in all divisions to lower costs, free capital, and pay down debt.
Only from a strengthened economic base can Embraer go for growth in the years ahead.