Leeham News and Analysis
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Leeham News and Analysis
- Aerospace supply chain still ailing; Sustainable Aviation Fuel isn’t the answer to go green October 4, 2024
- Bjorn’s Corner: New engine development. Part 27. Long developments October 4, 2024
- Longshoreman strike adds to Airbus, Boeing woes October 1, 2024
- Southwest Airlines Slashing Capacity Growth Shakes Up Their Fleet Plan September 30, 2024
- Bjorn’s Corner: New engine development. Part 26. New versus old, Trent 1000 vs. XWB September 27, 2024
Looking ahead in 2015 in commercial aviation
Here’s a visualization of events to look for in commercial aviation in 2015.
Click to enlarge for crisp view.
Boeing 777-300ER and its replacements; A350-1000 and 777-9X.
By Bjorn Fehrm
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Introduction
Dec. 21, 2014: Last week we did a deep analysis of A380 and its competition. It has been windy weeks for the aircraft since the Airbus Global Investor Forum and it was time to bring some needed facts on the table. These facts showed there is a clear difference between the hype being perpetuated in the media and the reality. As we cleared the situation around the A380, we also touched on the large twins that could fulfill at least parts of its missions.
There has been a lot of discussion around these aircraft as well as they form the battle of titans one level down from A380, the large, long-haul market today dominated by Boeing’s 777-300ER (the A380 does not have a real competitor–the 748i is clearly smaller, in fact so much smaller that it will be engulfed by the 777-9X).
Summary
- The 777-300ER had an exclusive run in its size until launch of the A350-1000;
- The A350-1000 doesn’t enter service until 2017;
- 777-9 EIS set for 2020, with hopes to advance by six months;
- We undertake a full economic analysis which gives good cues as to the future dominance of Boeing or Airbus in this highest margin segment of the market.
A380, a deep analysis of its competitiveness
By Bjorn Fehrm
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Introduction
Dec. 18, 2014: In our Monday article we go behind the scenes of the doubts that were spread over the A380 by Airbus last week. To complete the picture we now update our competitive analysis that we did in February this year. We then compared the A380 to Boeing’s 747-8i, the 777-300ER and the forthcoming 777-9X. We also included Airbus closest aircraft, the A350-1000.
A lot has happened since then. Airbus has done a lot of work on the passenger area of the A380 to offer increased passenger densities and the pictures of the emerging Boeing 777-9X and Airbus A350-1000 is now clearer.
Sales efforts of the A380 has also progressed, with meager results despite adding a leasing proposition what should make the hurdles of operating a small sub-fleet of A380s lower. To understand why, we interviewed Mark Lapidus, the CEO of Amedeo, the leasing company which specializes in financing and leasing of A380s. We wanted specifically to talk to Lapidus about the reactions of the airlines to the A380 and what problems he saw in selling an aircraft of this type.
In preparing the article we also gathered additional info from Airbus and Boeing, from the former around their work on the cabin configurations and densities, from the latter the maintenance costs for the up and coming 777-9X.
Summary
- In our February article we established that an A380 is roughly equal on fuel per passenger transported to the benchmark in the present non-VLA long haul market, the Boeing 777-300ER. We also found that this is highly dependent on how many passengers one assumes for both aircraft in the comparison.
- We could also see that come 2020, when the replacement of the 777-300ER would be available, the 777-9X, A380 would trail with up to 20% in fuel efficiency, once again dependent on how many seats were used in the comparison.
- At the time we only looked at a fuel consumption comparison; we did not include crew cost, maintenance costs, landing and en route fees to generate Cash Operating Costs (COC) or capital costs to come to Direct Operating Cost (DOC). In today’s updated analysis we add these costs items.
- Finally we have talked with Amedeos CEO Mark Lapidus, asking about his discussions with the Airline CEOs and their teams, to understand what the reactions are from the airlines and why has he not placed any A380 with customers yet.
As we did this deeper study, a more nuanced and different picture emerged from the one seen in February. The results busts a number of deeply engraved myths, one being that four engines are more expensive to fly and maintain than two.
737 MAX 8 could be enabler for some LCC Long Haul
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By Scott Hamilton and Bjorn Fehrm
Introduction
Figure 1. Nominal range of 737 MAX 8 from Oslo Source: Great circle mapper, Boeing. Click on Image to enlarge
Dec, 8, 2014:The Boeing 737-8 MAX is the successor to the 737-800 and has largely been thought of in this context.
Our analysis, prompted by Norwegian Air Shuttle (NAS) plans to use Boeing 737-8 MAXes to begin trans-Atlantic service on long, thin routes, comes up with a conclusion that has gotten little understanding in the marketplace: the 8 MAX has enough range and seating to open a market niche below the larger, longer-legged 757, and the economics to support profitable operations for Low Cost Carriers interested in some trans-Atlantic routes or destinations beyond the range of the -800.
Summary
- We based our analysis on our proprietary, economic modeling, assumed Norwegian cabin configuration standards.
- We compared the operating costs of the 737-8 with Norwegian’s present long haul aircraft 787-8 in a similar cabin configuration.
- The comparison range is the max endurance range for an LCC long haul 737-8, eight hours or 3,400nm air distance (no wind included).
Fundamentals of airliner performance, Part 5; Approach and landing
By Bjorn Fehrm
Dec. 2, 2015: The time has now come to cover descent and landing in our articles around airliner performance. As many aspects of descent are similar to climb we will repeat a bit what we learned in Part 4:
- For high speed operation the pilots fly on Mach as this gives him maximum information around possible effects on the aircraft when he is close to the high speed limit, the maximum Mach number. Beyond this the aircraft gets into supersonic effects like high speed buffeting or unsteady flight.
- For operations under the cross over altitude for Mach 0.78 to 300 kts IAS the pilot flies on Indicated Air Speed (IAS) which gives him maximum information how the aircraft reacts should he go close to the aircraft’s lower speed limits.
Lets now start to go through the steps that our 737 MAX 8 performs after leaving its cruise altitude.
MTU investors day: views of its engine programs, future airplane timelines; separately, Embraer COO interview
Figure 1. Technical milestones have been passed on PW GTF programs for the applications on Bombardier, Airbus, Mitsubishi and Irkut airplanes and are approaching for Embraer. Source: MTU Investors Day. Click to enlarge.
Nov. 30, 2014: MTU Investors Day: MTU is a major participant in engine development and supplies, participating on the GEnx, GTF and GEnx program. It’s also a member of the joint venture in International Aero Engines and it’s a major player in the aftermarket Maintenance, Repair and Overhaul (MRO) sector, providing a serious competitive alternative to the aftermarket contracts offered by the engine OEMs. Its held an investors day conference Nov. 25. Highlights included:
- Milestones have been passed on the Pratt & Whitney Geared Turbo Fanengine for the Bombardier CSeries, Airbus A320neo family, the Mitsubishi MRJ and Irkut MC-21; and are on schedule for the Embraer E-Jet E2.
- The success of the GTF is requiring huge production commitments.
- The large number of airplane/engine programs require a major ramp-up of production during the next few years.
- The major investment in new engines is largely over for now, leading to the expectation of long-term revenue from MRO.
Fundamentals of airliner performance, Part 2.
By Bjorn Fehrm
In our first article on how to understand the fundamentals that make up airliner performance we defined the main forces acting on an aircraft flying in steady state cruise. We used the ubiquitous Boeing 737 in its latest form, the 737 MAX 8, to illustrate the size of these forces.
Here a short recap of what we found and then some more fundamentals on aircraft’s performance, this time around the engines:
When flying steady state (Figure 1) we only need to find the aircraft’s drag force to have all important forces defined.
Figure 1. Elementary forces acting on an aircraft at cruise. Source: Leeham Co.
The lift force is given as equal to and opposite to the aircraft’s weight and the tail downforce that we need to add to this was small. We also presented the two classes of drag that we will talk about:
- Drag independent of lift or as we often call it drag due to size as almost all drag components here scale with the aircraft’s size.
- Drag due to lift or drag due to weight as we call it as this drag scales with weight when one flies in steady state conditions.
We could see that the aircraft’s flight through the air created a total drag force of 7900 lbf, Figure 2 ( lb with an f added as we prefer to write it as this is a force and not a measure of mass. Mass we denote with just lb or the metric units kg or tonne = 2205 lb).
Figure 2. Drag of our 737 MAX 8 and how it divides between lift and non lift drag. Source: Leeham Co.
We also learned that if the drag is 7900 lbf then the engine thrust is opposite and equal. It is then 3950 lbf per engine when cruising at our mean cruise weight of 65 tonnes or 143.000 lb on our 1000 nm mission. Drag due to size consumes 63% of our thrust and drag due to weight 37%. Read more
Zhuhai Airshow: China’s aircraft industry is gaining speed
The 10th Chinese airshow at Zhuhai opened today. It was a day with fewer announcements than expected from the usual suspects (Airbus, Boeing…) but the Chinese industry did not disappoint. China is now showing more and more of its coming might as a player on the aeronautics arena.
The most prominent displays at this show were on the military side, where China has two stealth aircraft projects flying (the large Chengdu canard J-20 and the smaller Shenyang J-31) while their canard Chengdu J-10 was flying the display circuits overhead (Figure 1).
Figure 1. Chinas latest fighter developments; the J-31 and J-20 stealth fighters and the canard J-10. Source: China internet.
All aircraft are of latest structural and aerodynamic design if not in engines and systems. This is a big difference to previous shows where the Russian Sukhoi and MIG aircraft and their local copies did the flying display until 2008. Since then everything has changed and now China and USA are the only countries in the world with two different stealth designs flying. USA has one in operation (F-22) and one close to (F-35) whereas China still has many years to go until they have their new aircraft operational. But it is significant that the old aeronautical behemoths Europe and Russia have none respective one (PAK-50) stealth fighter in flight test.
Boeing 737 MAX 8 as a long and thin aircraft and how it fares in general versus Airbus A320neo.
Subscription required.
By Bjorn Fehrm
Introduction
Over the last weeks we have looked at Boeing’s 757 replacement possibilities on its long and thin network niche, including a ground breaking launch interview for the A321neoLR with Airbus Head of Strategy and
Marketing, Kiran Rao. In the series we have seen that the A321neo has the potential to replace the 757-200 on long and thin international routes. Boeing’s equivalent single aisle entry, 737 MAX 9, has problems to extend its range over 3,600nm. It is too limited in the weight increase necessary to cover the longer range.
Many have asked how the less- restricted Boeing 737 MAX 8 would fare, suitably equipped with the necessary extra tanks. This is the subject of this week’s sequel on the theme long and thin. At the same time we look at Airbus entry in this segment, the A320neo, to see how it stacks up to the 737 MAX 8, both in their normal 1,000 to 2,000nm operation and then also in a long and thin scenario.
Let’s first summarize what we found so far in our four articles around the Boeing 757 and its alternatives:
Summary
Figure 1. Boeing 737 MAX 8 overlaid with Airbus A320neo. Source: Leeham Co.
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Posted on November 9, 2014 by Bjorn Fehrm
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