Bjorn’s Corner: Engine efficiency

By Bjorn Fehrm18 September 2015, ©. Leeham Co: The debate around the market’s two single aisle combatants is quite heated, with fans of the one side saying “the limited space for a high bypass engine on the 737 MAX will cripple it forever” and the other side saying “the tighter design of the 737 will make it highly competitive against the A320neo, it is the A320 which has a weight and size problem”.

One of the arguments is that each inch of engine fan diameter brings 0.5% in increased propulsive efficiency. Therefore the A320 with up to 81 inches fans will win against the 737 MAX, which has a 69 inch fan. Having all the tools to check out if this is really the truth, I fed our airplane model with all the facts and looked at the result. It’s not so easy, guys…

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Airbus ‘confident’ engine makers can ramp up production

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Introduction

Sept. 17, 2015, © Leeham Co., Mobile (AL): Tom Enders, the chairman and CEO of Airbus Group, is “confident” engine makers can accommodate single-aisle airplane production ramp-ups being considered by Airbus and Boeing.

CFM makes about 50% of the engines on the A320 Family and has about 50% of the backlog for the New

Tom Enders, CEO of Airbus Group. Airbus photo.

Engine Option version. Pratt & Whitney has about the same market share for the NEO, depending on what month it is, with a large number of orders for which no engine has been selected.

Airbus and Boeing are each studying whether to ramp up production of the A320 and 737 families above the record rates already planned.

In an interview Sunday with Leeham News and Comment in advance of the A320 Final Assembly Line opening here, Enders said studies continue whether to take A320 production rates to 60 a month. Boeing is studying rates of 60-63 a month.

Summary

  • Decision whether to go to rate 60/mo should come by year end.
  • Suppliers, engine “partner” key to decision.
  • A380 sales “struggling,” but confidence remains.
  • More export sales for A400M program expected.

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A320 FAL “good for US aerospace,” says Airbus

 

Sept. 16, 2015, © Leeham Co., Mobile (AL): The opening of the Airbus A320 Final Assembly Line here achieves a major set of goals set by the company 10 years ago for its own strategic purposes, but officials are also mindful of the larger impact on US aerospace.

David L. Williams, VP Procurement, Airbus Americas. Photo via Google images.

Top executives point out that the Mobile plant reestablished a second commercial aviation assembly site in the US since the last MD-11s and MD-95s rolled out of the former McDonnell Douglas plant in Long Beach (CA) after its acquisition by The Boeing Co in 1997. Boeing continued production of the MD-11 until the end of 2000 (with deliveries occurring in 1Q2001). The last MD-95, renamed the Boeing 717, was produced in 2006. There were 200 MD-11s and 156 717s produced.

With nearly 10 years elapsing between that last 717 and the first A321ceo coming out of Mobile, Airbus officials say the creation of the FAL is not only good for Airbus and Alabama, it’s good for US aerospace.

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New single aisles on home stretch

By Bjorn Fehrm

16 Sep 2015, © Leeham Co.: Boeing released pictures yesterday of the first 737 MAX 8 being on the Renton Final Assembly Line (FAL) having completed the wing-to-body joins. With the Airbus A320neo now flying again with both Pratt & Whitney GTF and CFM LEAP test vehicles and Bombardier completing 85% on CSeries (having passed 2,400 hours of flight testing), one can say the new single aisles are on their home stretch.

737 MAX wing join with pylon

737 MAX on the Final Assembly Line at Renton, Seattle. Source: Boeing.

Original planning had the CSeries entering service in December 2013, nearly two years before A320neo (October 2015) and four years before the 737 MAX (4Q2017). With the 737 MAX now on the FAL one can start to review the Entry into Service (EIS) for all three. It will be tighter than the companies have said.

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Boeing’s 767 revitalized as a MOM stop gap, Part 2

By Bjorn Fehrm

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Introduction

Aug. 31 2015, ©. Leeham Co: Last week we started to look at Boeing’s 767 to see if it can serve the passenger and range space which is not well covered by modern aircraft: the 225 passenger/5,000nm sector. Boeing calls this the Middle of the Market or MOM. Boeing recently said that there is some increased interest for the 767. We analyze why and what can be done to increase any chances of it having a new life as a passenger aircraft.

We started with comparing the 767’s different variants to the most likely MOM aircraft from our series “Redefining the 757 replacement requirement for the 225/5000-sector”. We will now continue and look at the 767 in detail, its strong suits and its less efficient areas. We will also discuss what can be made to address the less efficient areas.

Summary:

  • Boeing’s 767 has the right cross section for passenger transportation in the 225 passenger/5,000nm segment.
  • It also carries cargo containers, not as efficiently this time. We show what the consequences are.
  • Finally the wing is not the slender wing of the modern aircraft. We show what impact it will have on overall efficiency.
  • Combined with engines from the 1990s, this gives less than stellar fuel economics. We investigate what can be done about this and how much of an impact it will have in today’s low fuel prices.

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PW chief credited MRJ with ripple effect leading to CSeries, A320neo, 737 MAX and E-Jet E2

David Hess, former president of Pratt & Whitney, credits Mitsubishi with the ripple effect that led to new developments at Bombardier, Airbus, Boeing and Embraer. Photo via Google images.

Aug. 20, 2015, © Leeham Co.: Conventional wisdom credits Bombardier’s CSeries with being the disruptor that prompted Airbus to launch the A320neo, which in turn caused Boeing to launch the 737 MAX and Embraer to launch its E-Jet E2.

But an academic paper by John Slattery, chief commercial officer for Embraer, reveals that David Hess, the former president of Pratt & Whitney, credits Mitsubishi rather than Bombardier as the catalyst for the dramatic changes that followed.

In a paper entitled Resources & Rivalry, A Case Study of The Single-Aisle Commercial Jet Manufacturing Industry, Slattery interview present and former executives of the Big Four airframe manufactures, the former CEO of ILFC and officials of P&W.

The paper provides a chronicle of thinking leading to decisions to move ahead with new airplane projects, including re-engining the A320 and 737 rather than proceeding with new, clean-sheet designs.

The interviews debunk some of the conventional wisdom surrounding the variety of programs. We’ll periodically report the findings of Slattery’s paper, starting with PW and Mitsubishi.

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Mitsubishi Regional Jet, MRJ, compared with second generation regional jets, Part 2.

By Bjorn Fehrm

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Introduction

04 Aug 2015, © Leeham Co.: Yesterday we started our deeper look at Mitsubishi Aircraft Corporation’s new MRJ90 and compared it with one of the aircraft that it aspires to replace, Bombardier’s (BBD) CRJ900. We outlined similarities and differences in architecture, dimensions, weights and payload capabilities.

We will now finish the analysis with a study of the fuel consumption performance of the two aircraft on a typical regional route network. Finally, we will discuss at what net price a MRJ90 would be motivated against the incumbent regional aircraft CRJ900 from BBD.

Summary:

  • The MRJ’s more efficient engines and more modern wing gives it a lower fuel burn than CRJ900.
  • A lower fuel cost can be compensated with a lower purchase price. We check at what value the per seat mile operating cost of the aircraft would be the same.

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Mitsubishi opens Seattle Engineering Center ahead of MRJ90 first flight

MRJ90 Timeline

The MRJ90 testing and entry into service timeline. Source: Mitsubishi. Click on image to enlarge.

August 3, 2015, © Leeham Co.: Mitsubishi Aircraft Corp. today opened its Seattle Engineering Center jointly with local company AeroTEC in advance of the first flight of the MRJ90 in September or October. During the second quarter of next year, four of five MRJ Flight Test Vehicles will be domiciled in Moses Lake in Central Washington for the bulk of the flight testing over the following year. Entry into service is planned for 2Q2017 with launch customer All Nippon Airways.

The engineering center represents the first in Washington State for an aircraft OEM other than Boeing. Mitsubishi will assign 50 engineers from Japan to the new SEC, in South Seattle a short distance from Boeing Field. One hundred engineers will be hired locally.

AeroTEC and Mitsubishi began discussing working together only last January, said president Lee Human, who added that the seven months from January to the opening of the SEC today was remarkable for the speed in which negotiations, contracts, permits and hiring was achieved.

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Mitsubishi Regional Jet, MRJ, compared with second generation regional jets.

By Bjorn Fehrm

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Introduction

03 Aug 2015, © Leeham Co.: Mitsubishi Aircraft Corporation, the company behind Japan’s new regional aircraft, is inaugurating an engineering center in Seattle today and presenting their testing facility at Moses Lake (WA) Grant County International Airport tomorrow. Against this backdrop we decided to look a bit deeper into the MRJ after having done a first comparison on our January article, MRJ90 vs. Embraer’s up and coming E-Jet 175 E2.

Now we compare the 90 seat version, MRJ90, to the aircraft that it aims to ultimately replace, the most efficient regional jet of the present generation, Bombardier’s CRJ900. With lower fuel prices, will the advantages of a new aircraft still be strong enough to create a compelling business case against the CRJ900?

We start with the examination of the two aircraft and will finish in Part 2 with an efficiency comparison over typical regional routes.

Summary:

  • The MRJ90 and CRJ900 are the same size, around 90 seats single class or 80 seats dual class
  • The CRJ900 has an advantage in that it fits in the present Scope Clause for 76 seats regional operations for mainline carriers. The MRJ is too heavy.
  • The MRJ has by virtue of more efficient engines and a more modern wing a lower fuel burn. With today’s lower fuel price, will the difference be large enough to motivate a higher acquisition cost?

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Rolls-Royce and Safran, major European engine OEMs with different fortunes.

By Bjorn Fehrm

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July 30, 2015 © Leeham Co. Rolls-Royce and Safran, the parent company of CFM partner Snecma, released their Q2 and first half 2015 earnings today. It is interesting to compare these companies as they are in different strategic situations in their dominant business segments, civil turbofan engines.

Civil turbofans constitute 52% of Rolls-Royce total business whereas it makes 54% of Safran’s turn over. Rolls-Royce’s focus has been widebody engines to the point where it exited its part of International Aero Engines, which makes the single aisle V2500 engine, three years ago. Safran on the other hand is heavily invested in the single aisle market through its 50% part in CFM through its Snecma subsidiary.

The present situation and the future outlook for these two companies are intimately aligned with this strategic difference. We look at why and how this will affect their immediate future.

Summary:

  • Rolls-Royce is experiencing migration problems in its widebody turbofan business. Its bread and butter Trent 700 engine is on its way out and it takes until 2018 for the replacement, Trent 7000, to kick in.
  • Other programs are only growing slowly: the Trent 1000 for Boeing’s 787 or Trent XWB for the Airbus A350.
  • Safran civil turbofan business Snecma is enjoying record sales and deliveries through its CFM joint venture with GE.
  • Despite sharing its revenue 50:50 with GE, the business turnover is the size of Rolls-Royce turbofan business today and larger tomorrow. Profit margins are three times higher.

 

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