Leeham News and Analysis
There's more to real news than a news release.
Wide-body production rates show mix of strength, weakness
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Introduction
May 14, 2018, © Leeham News: Wide-body production rates by Airbus and Boeing are expected to go up modestly during the next three year, with a jump in 2022—if Boeing 777X production rates head for 7/mo in late 2022, as the company projects.
The supply chain was asked last year by Boeing for a Rate Readiness Assessment that suggests a rate of 5/mo in late 2021 and rate 7/mo a year later.
Airbus is expected to boost production of the A350 to 13/mo as early as late next year. Meanwhile, the A330 production rate is coming down due to soft demand.
These rates omit impacts of the US withdrawing from the Iran Nuclear Deal, in which some 100 Airbus orders, mostly wide-body, and some three-score wide-body Boeing orders disappear with the action.
Summary
- Production rate hikes driven by A350, 767, 787.
- A380, A330, 747, 777 remain weak.
- Is entire twin-aisle market continuing a down-gauging?
Scott Hamilton will discuss production rates at the Southeast Aerospace & Defence Conference next month in Mobile (AL). Click here for more information.
Bombardier refocuses the CRJ
By Bjorn Fehrm
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Introduction
May 10, 2018, © Leeham News: American Airlines last week ordered 30 additional regional jets. Of these, 15 were the Embraer E175. No surprise there. It’s the traveler’s favourite and the market leader among US regional jets. But American Airlines also ordered the same number of Bombardier CRJ900. Why? Isn’t it a bit dated?
There are good reasons for this order and Bombardier sees a new spring for the trusted regional. We use our performance model to understand why.
Summary:
- The CRJ900 is still a good choice for the US Scope Clause regulated regional jet market.
- Is strong economics makes it a favourite with the airline’s bean counters.
- In addition, it has the longest cabin, enabling large First-class and Premium economy sections.
- With programmed updates, it will be competitive for years to come.
Demand supports rate 70/mo for A320, 737
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Introduction
May 3, 2018, © Leeham Co.: With the supply chain confirming last Thursday that Airbus and Boeing are exploring single-aisle production rates of 70/mo, Airbus confirmed it was doing so during its Friday earnings call.
Boeing continues to be ambiguous, saying only there is “upward pressure” on its 737 production rates.
The supply chain, notably the engine OEMs, already has heartburn over the current rate of 60/mo and 52/mo for the A320 and 737 families respectively.
Summary
- Engine makers CFM and Pratt & Whitney continue to have technical and production issues.
- Airbus and Boeing each have “gliders,” though Boeing’s is a handful vs the dozens at Airbus.
- CFM’s partner, Safran, cautions against rate 70.
Production rates will be among the topics at the Southeast Aerospace & Defence Conference next month in Mobile (AL). Click here for more information.
Southwest accelerates 737-700 retirements
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Introduction
April 30, 2018, © Leeham News: Southwest Airlines announced orders 80 Boeing 737-8s so far this year and market intelligence indicates the carrier may be far from done.
Another 60 orders may come during the year, though this trend could slow, market intelligence indicates.
The carrier is accelerating fleet retirements of its Boeing 737-700s with the orders. The latest round last week now makes Southwest the largest single customer for the MAX.
Significantly, the orders represent an up-gauging to the 8 MAX from the -700. The similarly-sized, slow-selling 737-7 MAX, of which Southwest is one of only four identified customers, is being bypassed. Southwest previously deferred delivery of 23 7 MAXes four years.
Click on image to enlarge.
Southwest historically operated its 737s for at least 25 years. Some 737-300s were 28 years old by the time they were retired and stored, according to the Airfinance Journal Fleet Tracker.
Summary
- Strong economic business case cited to retire 737-700s.
- 40 737-700s to be retired with concurrent deliveries.
- Retirements occurring at earlier age.
- Aging aircraft issues exist.
Airbus’ Ultra Long Range A350 starts flight test
By Bjorn Fehrm
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Introduction
April 26, 2018, © Leeham News: Airbus Ultra Long-Range version of the A350-900 took off for the first time Monday. The aircraft will conduct a short flight test program before being painted in Singapore Airlines’ colours and handed over after the summer.
Airbus touts the A350-900URL as an aircraft which can fly ultra-long routes with flight times up to 20 hours and distances of 9,700nm. So, what so different with this aircraft to the normal A350-900? We use our performance model to show where the differences are.
Summary:
- The A350-900URL has got a higher fuel capacity to extend its range when used as an Ultra Long Range aircraft when loaded with fewer than 250 passengers.
- At the passenger counts where Singapore Airlines will operate the aircraft, the additional range is about 1,000nm.
- For normal operations, there would be no gains.
Engine makers may face stiffer future ETOPS certification requirements
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Introduction
April 23, 2018, © Leeham News: Even before last week’s Southwest Airlines accident raised the focus on aircraft engines, industry officials were becoming worried that problems with engines powering the Boeing 747-8, 787, 737 MAX and Airbus A320neo may lead to stricter certification standards by regulatory authorities.
There is also emerging evidence that the issues with the Rolls-Royce Trent 1000 on the 787s may negatively impact Airbus’ sales efforts with the A350. The A350 is
powered by an entirely different RR engine, the Trent XWB, which by all accounts has had a virtually trouble-free entry into service.
But it’s a Rolls-Royce engine and airlines affected by or watching RR’s response to the Trent 1000 problems are skeptical about the Trent XWB, LNC is told.
Summary
- How long will it take for the FAA and EASE to restore full ETOPS for the 787?
- Concerns emerge that regulators may be more restrictive of ETOPS for new engines powering new planes, with the Boeing 777X next up.
- Impact seen on reception of Rolls-Royce engines on Airbus A330neo and A350.
- What do the engine problems mean for the Boeing NMA?
Narrowbody and Widebody engine developments, Part 2
By Bjorn Fehrm
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Introduction
April 19, 2018, © Leeham News: In an article last week, we discussed the reason the new narrow-body engines are catching up to the fuel consumption of the wide-body engines.
Today we dig a bit deeper into the efficiency changes of the different engines and discuss which parameter changes have caused what changes in engine efficiency.
We will use our engine modeling software GasTurb to analyze what happens in a Turbofan when we change certain parameters.
Summary:
- The engine’s Core or Thermal efficiency changes with Turbine Entry Temperature (TET).
- To fully utilize such an increase in efficiency we need to adapt the overall design of the engine.
Déjà vu all over again
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Introduction
April 16, 2018, © Leeham News: There’s high turnover in the executive ranks. Major delivery delays cause disruption and unhappy customers. Airlines are cancelling and switching orders. Product strategy is challenged. Your competitor is taking advantage and making significant inroads.
If this sounds familiar, it is.
It’s déjà vu all over again.
Narrowbody and Widebody engine developments
By Bjorn Fehrm
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Introduction
April 12, 2018, © Leeham News: In an article yesterday about Long-Haul LCC costs we observed how the new Narrowbody engines are catching up to the fuel efficiencies of the Widebody engines.
Traditionally the Widebody engines were the efficiency leaders. The Narrowbody companions were designed to be durable rather than efficient.
Figure 1. Cut through of the Narrowbody LEAP engine. Source: CFM
We use the engine modelling software GasTurb to understand why this catching up of the Narrowbody engines has happened.
Summary:
- The new Narrowbody engines for Airbus’ A320 series and Boeing’s 737 MAX are close in specific fuel consumption to the new Widebody engines.
- We use the GasTurb engine modelling software to find the root cause of this change.