Leeham News and Analysis
There's more to real news than a news release.
Singapore 777-9 order pressures, but does not kill A380
Feb. 16, 2017, © Leeham Co.: Last week’s order by Singapore Airlines for 20 Boeing 777-9s and 19 Boeing 787-10s immediately was viewed by some as the death
Boeing 777-9.
knell for the Airbus A380.
The 777-9 order would start the final spiral down for the A380, some contend.
This overstates the case and misunderstands the nature of the order.
The A380 is in trouble, there no doubt about that. The 777-9 is putting pressure on the A380. There’s no doubt about this, either. But the contention the Singapore 777-9 order sends the A380 on a death spiral is wild fantasy.
An Airbus official appears today at the annual conference of the Pacific Northwest Aerospace Alliance (PNAA) in Lynnwood (WA). Undoubtedly, he will maintain the party line that the future of the A380 is solid. This, too, overstates the case. There can be a future for the airplane, but some major decisions must be made.
Bjorn’s Corner: Aircraft engines in operation, Part 3
By Bjorn Fehrm
February 3, 2017, ©. Leeham Co: In the last Corner, we went through how our airliner engine reacts to the different phases of flight, including what happens when we operate in a hot environment.
We also showed how engine manufacturers make a series of engines with different thrust ratings by de-rating the strongest version through the engine control computer.
Figure 1. Principal picture of a direct drive turbofan. Source: GasTurb.
We will now look deeper at how engines are controlled and why so-called flat-rating is important. Read more
MRJ regional jet delayed until mid-2020
By Bjorn Fehrm
January 23, 2017, ©. Leeham Co: Mitsubishi announced a further two years delay of the MRJ regional jet project in a press conference in Tokyo today.
The 90-seater variant of the aircraft will be delivered to the first customer, All Nippon Airways (ANA), mid-2020.
The previous scheduled Entry Into Service (EIS) of mid 2018, was announced December 2015. In total, the MRJ program has announced five delays, totaling seven years. Read more
The regional market and scope clauses
By Bjorn Fehrm
January 17, 2017, ©. Leeham Co: Union contract Scope Clauses–the provision limiting the weight, capacity or number of aircraft operated by airlines for major carriers–are unlikely to be modified any time soon, panelists at the Air Finance Journal conference in Dublin said.
The restrictive Scope Clauses are predominate in the US. These limit the ability of small airplane manufacturers to sell aircraft in the US. Most affected are Embraer, Bombardier and newcomer Mitsubishi.
Contract negotiations in December, concluded before Christmas, resulted in no changes, surprising some. This will impact planned purchases of aircraft.
We sat with Bombardier’s Ross Mitchell, vice president of commercial operations, to understand why the scope clauses are so important and why they did not change. Read more
Bjorn’s Corner: Geared turbofans
By Bjorn Fehrm
January 13, 2017, ©. Leeham Co: The time has come to go through the reasons why some turbofan engines are designed with a gearbox between the fan and the low pressure shaft.
The principle design is shown in Figure 1. It’s a graphical representation of a geared turbofan from the engine analysis software GasTurb.
Figure 1. GasTurb principal representation of a geared turbofan. Source: GasTurb.
The base idea is to have the low pressure spool of the engine to run at a considerably higher RPM than the fan. Read more
Airbus sets new delivery record for 2016
By Bjorn Fehrm
January 11, 2017, ©. Leeham Co: Airbus Commercial Aircraft presented a new record in yearly deliveries at its Press Briefing in Toulouse today. The division of an integrated Airbus (therefore Airbus Commercial Aircraft, ACA) delivered 688 aircraft during 2016, thereby beating its target of 650 aircraft for the year.
Airbus A321neo with Pratt&Whitney engines was certified end 2016. Source: Airbus.
Orders were also higher than expectations at 731 net orders, giving a Book to Bill of 1.06. The market, including LNC, widely expected Airbus to fall somewhat short of a 1:1 book:bill.
There were no formal forecasts given for 2017. ACA President Fabrice Bregier stated that he expects it to be over 700 deliveries but full details will given at the Airbus Group’s financial press briefing in February.
Bjorn’s Corner: Turbofan developments in 2017
By Bjorn Fehrm
January 06, 2017, ©. Leeham Co: Before we finish of our series on airliner turbofan technology, let’s spend this Corner on what will happen on the airliner engine front during 2017.
While there is no totally new engine that comes into the market during 2017 there are a number of new variants of existing engine families that will be introduced.
Figure 1. GasTurb principal representation of a three shaft turbofan like our reference Rolls-Royce Trent XWB. Source: GasTurb.
If we start with the engines for regional/single aisle aircraft and then climb the thrust scale, we will cover the engines in climbing thrust class.
Assessing the MC-21 future
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Introduction
Feb. 9, 2017, © Leeham Co.: Russia’s Irkut designed a mainline jet to compete with the Airbus A320 and Boeing 737 families that, from a passenger experience
Irkut MC-21 at roll-out. Photo via Google images.
viewpoint, is the best in class.
The MC-21 has a wider fuselage than the A320 (which is wider than the 737). Seats and the aisle are the widest in the class. The overhead bin space is plentiful.
But the airplane is hampered by its environment: Russia itself.
Summary
Read more
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Posted on February 13, 2017 by Scott Hamilton
Airbus, Boeing, China, Comac, Irkut, Leeham News and Comment, Pratt & Whitney, Premium, United Aircraft
737, A320, Airbus, ARJ-21, Boeing, C919, C929, Irkut, MC-21