Leeham News and Analysis
There's more to real news than a news release.
Aviation Partners Boeing: next step–scimitar for 757, 767
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Introduction
April 14, 2015: Several airlines operate the Boeing 757 across the Atlantic on “thin” routes but sometimes have to do refueling tech stops when high westerly winds
Aviation Partners Boeing plans the Split Scimitar Winglet (SSW) for the Boeing 757 and 767. Officials plan to seek board approval on the 757 SSW this year, the 767 next year. Source: Aviation Partners Boeing. Click on image to enlarge.
occur.
The 757s are aging, with engine maintenance, repair and overhaul costs increasing under the tightly-controlled contract with Rolls-Royce and Pratt & Whitney.
Some airlines want a “757 replacement.” Boeing and Airbus don’t see a market for “just” a 757 replacement and argue the 737-900ER/9 and A321neo/LR are the replacements. Even these fall somewhat short.
Industry observers and pontificators nonetheless are obsessed with a “757 replacement” (except us—we’ve redefined the replacement as one needed for the 225/5000 Sector [225-250 seats, 5,000 miles] and concluded an airplane very similar to the 767-200 is needed).
Patrick La Moria, EVP and chief commercial officer, Aviation Partners Boeing.
While all this debate is going on, Aviation Partners Boeing (APB) is close to seeking board approval to offer a scimitar option for the 757 that will improve efficiency by about another 1.5%. A scimitar for the Boeing 767 may not be far behind.
Summary
- Scimitars and the increased range will eliminate some “tech” stop for fuel.
- Field performance will be better.
- Low fuel prices and prospect of scimitars (as well as lack of availability of new airplanes) may lead to longer retention of 757s and 767s.
Boeing MOM airliner; market coverage
By Bjorn Fehrm
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Introduction
12 April, 2015: In our study of the options for Boeing’s market study called Middle of the Market (MOM), we could conclude that the most likely aircraft to cover their 200-250 seat 4750nm range requirement would be a seven abreast twin aisle aircraft using their patented new oval construction, thereby saving weight and drag.
After finishing the series, Readers requested that we conclude the work by showing what market segment a family of such airliners would cover and how they would relate to the Boeing 787-8. As it is pretty straight forward to see with our aircraft performance model how much of a range of aircraft variants one can make from one base development of aircraft and engine, we decided to fulfill the wish from our Readers.
We have therefore looked at how far the concept MOM airliner could be stretched and what segment in the market would be covered by it. We also studied how much such a family would encroach on Boeing’s 787 Dreamliner market.
Summary
- A base design such as our proposed MOM dual aisle airliner can typically cover a market of 30-40 seat increments per model.
- Limiting factors are the base models wing area and span, together with engine sizing. Much depends on the engine’s stretch capability.
- A MOM airliner family would compete with the 787-8 for short- and mid-haul traffic, there presenting a more economical alternative. The Dreamliner would have long-haul for itself.
Bjorn’s Corner: Intro, LCC long range and CFM’s LEAP
By Bjorn Fehrm
March 19, 2015: This is the first version of my Corner where I will comment on the aeronautical world as I see it. It will be a mix of tech things (I am an engineer) and my view on things from my European vantage point. Enough on reason and style; lets get started.
LCC goes long range: After AirAsiaX and Norwegian, now Ryanair is going long range, according to Irish Times (or not; the latest news from Robert Wall of The Wall Street Journal is that the board has not approved a long range business plan).
Be that as it may with Ryanair, the key thing is that what happened to the majors on short haul is about to hit them on long haul as well. Short haul LCCs brought about a change in airline economics and in single aisle aircraft. The LCCs, followed by Ultra LCCs, started the trend to denser and denser configurations where the latest trends are sub 29 inch pitch slim-seats and lavatories that started at 37 inch getting slimmed to 31 inch. It has also brought about changes in galleys and emergency exits configurations, all leading to aircraft with higher and higher capacities.
This is a pivotal year for the A380 as Airbus considers neo, PIPs
Introduction
March 15, 2015: This is a pivotal year for the future of the Airbus A380.
Tim Clark, the president of Emirates Airline, increased the pressure for development of an A380neo when he said he’d buy up to 200 of the prospective re-engined airplane, potentially doubling the number of neos he previously said he’d buy.
It was widely expected that if Airbus proceeds with a neo, Rolls-Royce will provide the engine. Market Intelligence, however, indicates development of the Advance engine may be running into challenges. Airbus is now talking with Engine Alliance about upgrades to the GP7200.
Summary
- Customers take wait-and-see approach to prospect of a New Engine Option.
- Mixing engine types a consideration for some.
- Some at Boeing quietly rooting for Airbus to proceed.
Pontifications: A350 launch aid, Emirates and the A380, Bombardier and U-Turn Al
By Scott Hamilton
March 5, 2015: A350 Launch Aid: Boeing and the US Trade Representative got in a big twist around 2006 when Airbus said it would accept more than $1bn in launch aid from Germany for the A350. At that time, the US and European Union had recently launched the international trade complaints before the World Trade Organization (WTO), but the A350 came after the complaint was filed and the WTO refused the US request to add it to the proceedings.
Germany, in a political snit, later said it would withhold part of the launch aid because Airbus hadn’t promised the number of jobs in connection with the program to Germany that politicians wanted.
Redefining the 757 replacement: Requirement for the 225/5000 Sector, Part 2.
By Bjorn Fehrm
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Introduction
01 March 2015, c. Leeham Co: In the first part of the article series around the need for a more capable solution for 180-240 seats and 5,000 nautical miles, we went through the derivative aircraft that Boeing could field as competitors to Airbus A321LR and showed why none of them are effective. We also established the market requirements and the likely market size for aircraft that shall cover this segment and the required efficiency and overall cost improvement needed.
We will now look at different solutions to the requirements, first by analyzing what key characteristics does single and dual aisle aircraft have and what consequences will they have for the aircraft’s efficiency parameters like weight, size and drag. Once we have these characteristics we can design adapted aircraft types and calculate their economics such as fuel costs and other costs and we can also establish their operational ground handling times and thereby the consequences single or dual aisle will have on the aircraft utilization.
Having developed and presented these facts it will be possible to forecast what will be the most likely results of Boeing’s New Airplane Study, NAS that we presented 2 November last year. Boeing now uses the name, Middle of the Market (MOM) in place of the NAS.
Summary:
Our second article shows:
- Drag and weight per seat for today’s short and mid-range aircraft vary significantly between single and dual aisle aircraft
- There is a strong correlation between aircraft wetted area and aircraft weight.
- Dual aisle designs in the 180-240 seat segment will have to be highly optimized to be able to compete with single aisle, if at all.
Playing number games with the A380
Feb. 15, 2015: Orders for the Airbus A380 have been slow, almost glacial, since the program was launched in 2000. Despite a 20-year forecast then and every year since by Airbus that suggests there is a need for 1,200-1,700 Very Large Aircraft (including freighters), sales of the A380 and Boeing’s 747-400/8 have never reached a point that support the forecast.
Airbus’ latest forecast now is for around 1,500 VLAs, including freighters.
Slow sales hang over the prospect of developing an A380neo. We concluded last year that Airbus had to proceed with the neo in order to spur sales. The commercial viability is a matter of great debate, but Airbus Commercial CEO Fabrice Bregier said last month Airbus will produce a neo, and even stretch the airplane.
Aviation consultant Richard Aboulafia, a critic of the A380 from the get-go, thinks Airbus would be nuts to launch a neo. At the Pacific Northwest Aerospace Alliance conference last week in Lynnwood (WA), in the heart of Boeing country, Aboulafia renewed his decades-long criticism of the airplane.
Boeing 757 MAX: why its operating economics does not work
By Bjorn Fehrm
Introduction
Feb 12, 2015: In a series of articles during the autumn we covered the replacement scenarios for Boeing’s 757-200 when used for long haul passenger operations. The series also included an interview with Boeing’s head of new airplane studies, Kourosh Hadi, director of product development at Boeing where he outlined what Boeing studied and why.
This week The Wall Street Journal published an article portraying that Boeing seriously considered launching a re-engined 757 as a response to Airbus A321LR. Boeing has since vehemently denied the story and we have given the reasons why it does not make sense for Boeing.
As a complement we show the operational economical analysis that we did at the time of our 757 articles, now updated to the exact modifications suggested by The WSJ, a new engine and new winglets paired with modern avionics.