Leeham News and Analysis
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Leeham News and Analysis
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Pontifications: JADC 20-year forecast: VLA, NMA and other data
By Scott Hamilton
July 24, 2017, © Leeham Co.: The Japan Aircraft Development Corp (JADC) just published its 2017-2037 jet and turboprop forecast. JADC forecasts a demand for 33,336 jet airliners and some 2,000 turboprops.
JADC is partly owned by Mitsubishi, which is developing the MRJ70/90 and which is on several Boeing programs.
I like the JADC forecast because it segments the seating categories in more detail than Airbus and Boeing and somewhat differently than Bombardier and Embraer.
I also view JADC as having less of an axe to grind than the Big Four OEMs.
A couple of quick take-aways:
Business case for NMA remains uncertain
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Introduction
July 17, 2017, © Leeham Co.: We’re half way through 2017. Boeing reported orders through July 11, a week ago. Airbus won’t update its July orders until the end of the month.
Through July 11, Boeing reported 116 net wide-body orders: 15 for the 767, 33 for the 777 and 75 for the 787. Net cancellations of -7 for the 747 are included in the net 116 figure.
The 15 767s were not commercial models, however, but 767-2C tankers for the USAF.
Over at Airbus, none of China’s 40 commitments announced July 5 for 40 A350s are in the June summary, and won’t be in the Orders tally until the commitments turn into firm orders. Through June, airbus had net 26 widebody orders: three A330-200s and 29 A350-900. There were cancellations of four A330-800s and two A380s.
If the 40 China A350s were included, this would bring Airbus to 66 widebody orders, still well short of Boeing’s YTD figure.
Summary
- Airbus product gap widens as A330-200/800 stalls.
- Boeing 787 strength comes from 787-9; 787-8 remains minor player.
- Middle of the Market business case still unproved.
Interest seen in Boeing’s “797,” says lessor
May 16, 2017, © Leeham Co.: Air Lease Corp., one of the world’s leading lessors, sees
John Plueger, CEO of Air Lease Corp.
a “quite a bit” of interest from its customers in the prospective Boeing Middle of the Market aircraft, says its CEO, John Plueger.
Speaking at the Airfinance Journal conference in New York today, Plueger acknowledged with some push from moderator Mark Streeter of JP Morgan that pricing needs to be in today’s dollars in the $70m-$75m range.
How Airbus can kill the Boeing 797
Artisit concept of the Boeing 797. Rendering via Google images.
May 10, 2017, © Leeham Co.: Airbus can kill the business case for the prospective Boeing 797, the New Midrange Aircraft also known as the Middle of the Market Airplane,
- Reuter’s Tim Hepher has this story.
- CNN’s Jon Ostrower has this story.
All it has to do is move first, instead of waiting for Boeing to launch the 797, something considered likely next year.
If Airbus launched what is commonly called the A322, a larger, longer-range version of the A321neo, the new version would become a true replacement for the Boeing 757, meet economics of the smaller 797, which has a working title of the 797-6, at a much lower capital cost.
Could an NMA be made good enough? Part 6
By Bjorn Fehrm
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Introduction
April 27, 2017, © Leeham Co.: We have in several articles gone through the sizing of an NMA (New Midrange Aircraft). We looked at the fuselage, cabin, wings and engines. Now we will sum the exercises and look at the performance of the resulting aircraft.
Boeing is seriously considering launching an NMA. The key to the launch decision will be the airplane’s economics: for development and production as well as operation.
The idea is the NMA shall have “twin aisle comfort with single aisle economics.” We will now use or performance model to analyze if the final aircraft has these characteristics.
Summary:
- An NMA designed to the principles in our articles will have a seven abreast dual aisle cabin. The cabin will increase passenger comfort in the 200 to 260 seat range and speed ground operations.
- Careful design of the fuselage, paired with a modern wing and engines, would produce an NMA with “dual aisle comfort and single aisle economics.”
Could an NMA be made good enough? Part 5
By Bjorn Fehrm
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Introduction
April 20, 2017, © Leeham Co.: After defining the fuselage and wings, it’s now time for the engines. We go through the sizing criteria for engines for airliners and find the size of engine that is needed for the NMA.
The NMA will need engines which are larger than the single aisle engines for Airbus’ A320neo and Boeing’s 737 MAX. But they will be smaller than the next size up for modern engines, the GEnx-2B for Boeing’s 747-8.
Figure 1. The NMA takes more and more the shape of a 767 replacement (A United 767-200). Source: United
This means the NMA will need new engines, at least 50% larger than the present engines designed for A320neo and 737 MAX.
Summary:
- An NMA engine will be sized by V2 safety speed or Maximum Continuous Thrust (MCT) criteria.
- The normal Top of Climb (ToC) sizing point will be less stressing for a twin engine airliner like NMA.
Could an NMA be made good enough, Part 4?
By Bjorn Fehrm
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Introduction
April 13, 2017, © Leeham Co.: Last week we finished the sizing of the fuselage for an NMA design. Now we continue with the wing. We go through the key parameters that will decide the performance of the wing and the aircraft.
The NMA is a critical design case. The performance envelope has to be just right. Too high and the economics of the aircraft won’t work, both for purchase price and operational costs.
Figure 1. The NMA takes more and more the shape of a 767 replacement (A United 767-200). Source: United
Summary:
- Wing design is the mixing of conflicting requirements to a successful compromise.
- The NMA wing will use the design principles of the Boeing 787/777X wings but will be different in area, size and plan-form.
- The wing is sizing the engines, something we will look at in the next article.
Could an NMA be made good enough, Part 3?
By Bjorn Fehrm
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Introduction
April 6, 2017, © Leeham Co.: After sizing the cabin of the NMA, the time has now come to size the fuselage. Can a fuselage be designed that gives an NMA “dual aisle comfort with single aisle economics”?
Figure 1. The NMA takes more and more the shape of a 767 replacement (A United 767-200). Source: United
We will investigate the dimensions, the drag and the weight of an NMA fuselage. It will be based on the cabin and design techniques we described in Part 2. We then compare the efficiency of the result with the fuselages of the Airbus A321LR and Boeing 767. This will show if the necessary efficiency can be achieved.
Summary:
- It’s possible to design a dual aisle fuselage with the same perimeter per seat abreast as a single aisle fuselage.
- This will make the central, cylindrical, section have competitive weight and drag characteristics.
- The larger diameter of the dual aisle fuselage will increase the size of the tapered front and rear sections however.
- It’s still possible for an NMA fuselage to be as weight-efficient as a single aisle fuselage, measured per transported passenger.
Could an NMA be made good enough, Part 2?
By Bjorn Fehrm
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Introduction
April 3, 2017, © Leeham Co.: In the first part of our investigation on how good an NMA can be, we explored low weight and drag fuselage design. We will now continue with the design consequences for the fuselage construction and the cabin.
What drives whether one goes for an Aluminum or CFRP (Carbon Fiber Reinforced Polymer) fuselage?
Figure 1. The NMA takes more and more the shape of a 767 replacement (A United 767-200 pictured). Source: United.
What will be the typical dimensions for an NMA fuselage and what will be passenger capacities?
Summary:
- An elliptical fuselage will force a CFRP design.
- The fuselage door configuration will be critical for cabin capacity and flexibility.
7M7 is key to Boeing’s future
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Introduction
An enthusiast’s concept of the Boeing 797. Image via Google.
April 24, 2017, © Leeham Co.: Boeing faces growing challenges this year as airplane sales slow, production of the 777 Classic declines, its new Global Services unit prepares to formally launch and a decision whether to authorize a sales offering for the New Midrange Airplane looms.
We’ve spent a lot of time covering slowing sales and declining 777 production. Tomorrow, we’ll have a special report on the ambitious Global Services strategy.
We’ve also spent a lot of time on the Boeing NMA. LNC’s Bjorn Fehrm last week presented number three in a paywall series on the NMA, looking at it from a technical viewpoint. We’ll take a look at it from a strategic point of view today.
Summary
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6 Comments
Posted on April 24, 2017 by Scott Hamilton
Airbus, Airlines, Boeing, Leeham News and Comment, Middle of the Market, MOM, Premium
737-10, 737-9, 747-8, 787, 787-8, 787-9, 7M7, A321LR, A321NEO, A330-200, A330-800, A380, A400M, Airbus, Boeing