Leeham News and Analysis
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Leeham News and Analysis
- Bjorn’s Corner: Air Transport’s route to 2050. Part 25. June 6, 2025
- New RISE powerplant benefits from decades of GE research and development June 5, 2025
- Engine makers emphasizing durability, reliability June 4, 2025
- Boeing CEO: Lessons learned are key to certification of 737-7/10 and 777X June 2, 2025
- Digital twin is a key to JetZero’s hopes for Blended Wing Body entry June 2, 2025
Used B777-200ER or A340-300?
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By Bjorn Fehrm
Introduction
Nov. 26 2015, ©. Leeham Co: In recent articles we have latched on to the debate around the prices for used Boeing 777-200 aircraft. Contrary to the market appraising companies’ ideas about second hand values, our surveys show that not only the Airbus A340-300 is cheap in the market but the Boeing 777-200ER is also available at interesting prices.
This, coupled with sustained low fuel prices, makes for interesting opportunities. Charter destinations can be reached which were not possible with less competent aircraft and it is possible to lease or purchase these long range aircraft to backfill an expanding route network while awaiting or even postponing delivery of the latest technology aircraft.
We decided it was time to take a look at which of the two would be the better choice as a long hauler of 300 passengers to destinations of up to 5,000nm. We use our proprietary model to find out which one is the most suitable given different conditions, such as cabin makeover or not. We will also introduce aircraft deterioration to the calculations to map the reality of an older aircraft.
In this first article, we will establish the base values for the aircraft and find their cash operating costs. In a subsequent article, we will add capital costs where we will look at different purchase scenarios and refurbishing options and how these affect the overall direct operating costs.
Summary
- The 777-200ER and A340-300 are very close in most dimensions.
- The 777-200ER is the slightly larger and heavier aircraft. Thanks to more effective engines, it can compete on fuel costs.
- When the other costs are added to make up cash operating costs, the higher weight and more expensive engines start to eat up any fuel cost advantages the 777-200ER has.
Pontifications: Is the end in sight for program accounting?
By Scott Hamilton
Oct. 26, 2015, © Leeham Co.: Is the end of program accounting, the staple of The Boeing Co. profit and loss reporting, on its way out?
It is in Europe, where it is called contract accounting, the end of its use is required by January 1, 2018. (LNC’s Bjorn Fehrm has talked about contract accounting in the past.) Companies have the option to eliminate it in 2017.
The fundamentals between contract and program accounting are similar: defer costs of the goods or services, and recognize profits sooner.
Europe’s International Financial Reporting Standards (IFRS) 15 says this has to stop.
Bjorn’s Corner: Engine rubbing
09 October 2015, ©. Leeham Co: Last week an Airbus A320neo prototype with Pratt & Whitney’s (PW) GTF had a problem while testing hot and high conditions at Al-Ain airport in Abu Dhabi. The engine suffered a rubbing problem and PW and Airbus decided to replace the engine before returning the A320neo to Toulouse.
I had the opportunity to discuss what happened with PW people at ISTAT this week and decided it makes for a good follow up to our two other engine Corners to write about what happened and how serious it was.
The problem was compressor blades rubbing against the compressors stator wall. PW knew that this engine individual could have that problem. They saw when assembling the engine it was a bit tight in the compressor area. PW said they told Airbus there was a risk with this particular unit, and sure enough, there was rubbing to be seen when they boroscope checked the engine after the test.
Here what it was all about and what to do about it. Read more
Bjorn’s Corner: Engine ratings
By Bjorn Fehrm
02 October 2015, ©. Leeham Co: After the article about the role of bypass ratio on a turbofan’s efficiency, we now look at other aspects of civil turbofan engines that are worth some light. It’s about how the engine OEMs create different versions of the same engine to cater for different aircraft variants.
The aircraft OEMs create different size variants from the same base model of aircraft by means of stretches. There is no better example of that than the Boeing 737. Over the years it has had more than 10 major versions. For the present in-service series, 737NG, there is three official variants, from the -700 to the -900ER. Originally it also had a smaller -600 variant.
These require engines from 20klbf to 27klbf. How this is achieved and what it means for engine characteristics and reliability is the focus of today’s Corner. We will also compare it to a typical long range engine, the Rolls-Royce Trent 1000/7000, which powers the Boeing 787 and Airbus A330neo.
Evaluating airliner performance, Part 2
By Bjorn Fehrm
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Introduction
Sep. 24 2015, ©. Leeham Co: In the second part of our series about comparing and evaluating economic and operational performance of airliners, we look at the parts beyond fuel that make up the Cash Operating Costs (COC) for an airliner.
While fuel consumption, crew costs and aircraft maintenance costs can be evaluated in a way which closely resembles reality, other costs in the COC are too complex to model in their true form.
This is the case for underway or airway fees, landing fees and station fees. Here, just about every country/airport in the world has taken the liberty to invent its own charging principles and formulas. With several hundred different formulae for these charges, the way out is to use industry-accepted approximation for these costs.
Summary:
- We establish how crew cost are modeled for our evaluation missions, taking into account the complex world of work time regulations for pilots and cabin crew.
- We also describe how we handle airframe and engine maintenance costs and how these get allocated to our missions.
- Finally, we describe how the complex underway and landing/station costs are modeled with the accepted approximations these require.
Bjorn’s Corner: USAF Tanker program
By Bjorn Fehrm
25 September 2015, ©. Leeham Co: When Scott Hamilton asked me to give my view on his article “Pontifications: Duelling refuelling tankers” I accepted. I was not involved in the project and was only following it casually over the years.
I will also not give my view on what would have been the most suitable tanker for the US Air Force. I simply don’t have the relevant military competence for that, having never operated my fighters with aerial tanking nor been in an aerial tanker aircraft.
Where I have relevant competence is in writing military specifications for important aircraft procurements and the excerpts I have seen from the tanker RFQ on key specification points don’t impress. Let me explain.
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.
Options for Singapore Airlines to operate direct flights to the US, part 2.
By Bjorn Fehrm
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July 23, 2015 © Leeham Co. After having looked at Airbus’ A350-900 and Boeing’s 777-200LR for filling Singapore Airlines (SQ) need for an Ultra Long Haul (ULH) airliner we now complement the analysis by including Airbus’ and Boeing’s up and coming A350-1000 and 777-8X.
Singapore Airlines has 70 A350-900 on order to replace 25 Boeing 777-200ER. There would also be place in that order to replace the 25 777-300ERs that Singapore operate, most likely with the A350-1000 (SQ has the right to change model).
The 777-8X is Boeing’s replacement aircraft for 777-200LR and direct competitor to A350-1000. It is interesting to compare these two types flying the Trans-Pacific routes non-stop from Singapore to US that we flew with A350-900LR and 777-200LR and to compare the per seat fuel consumption versus the smaller aircraft.
Summary:
- The 777-8X and A350-1000 are a sized larger than both 777-200LR and A350-900LR, and can therefore transport more payload.
- The 777-8X is designed as an ULH aircraft, the A350-1000 not. We explore what this means for the US missions.
- Flying to the US which of these four aircraft will be the most efficient? And carry an interesting payload?
Airbus A380neo not yet a project
Drilling down into the story and checking with Airbus, as well as going back to Bregier interviews at the Paris Air Show and one we did with him at the IATA AGM in early June, it’s clear the Sunday Times was somewhat exuberant in its headline.
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Posted on July 21, 2015 by Scott Hamilton
Airbus, Dubai Air Show, Emirates Airlines, Leeham News and Comment, Qatar Airways, Rolls-Royce
A380, A380neo, Airbus, Dubai Air Show, Emirates Airline, Fabrice Bregier, Qatar Airways, Rolls-Royce, Rolls-Royce Advance engine