Subscription Required
Introduction
August 24, 2015, © Leeham Co. When airlines like Indigo of India, Air Asia, Norwegian Air Shuttle (NAS) and Lion Air have outstanding orders for Airbus A320s and
Boeing 737s that number in the hundreds, far more than operations and growth appears ready to support, the deals raises the natural question: What are they thinking?
As LNC’s Bjorn Fehrm explained Friday, one aspect of these big orders is to “flip” the aircraft every six or seven years, a time that roughly coincides with the maintenance holiday/warranty period. Sale/leasebacks are used to finance these huge purchases.
The practice is hardly new. The USA’s JetBlue Airlines, Ryanair and others practiced this flip for years.
Carriers like the new LCCs mentioned above not only plan to do so to avoid major maintenance costs, but also to fuel their growth. In the case of Lion Air and NAS, these companies also plan to lease out aircraft to other airlines.
But there remain risks involved for the companies and for the industry.
Summary
21 August 2015, ©. Leeham Co: IndiGo Airlines firmed up Airbus’ largest aircraft sale by unit numbers in the week. The order is for 250 A320neos. This means the airline goes from 180 A320neos on order to 430. The airline is just finishing off its first order with Airbus for 100 A320ceos, the final eight being delivered over the next months.
How can an airline that did not exist 10 years ago order 430 A320neos?
There are a couple of things that makes this possible, one of them being the Sale/Leaseback. Before we go to Sale/Leaseback and how this enables this magnitude of business, let’s take a quick look at IndiGo. It has certain similarities to other airlines that also close large aircraft deals.
By Bjorn Fehrm
Subscription required.
Introduction
Aug. 19 2015, ©. Leeham Co: We will now finish our series over Boeing’s changes to its configuration rule sets by looking at how this affects the Very Large Aircraft (VLA) segment.
Airbus and Boeing used to describe the VLAs in their line-ups using three class cabins, albeit with different standards. Now Boeing has changed its standard to a modern three class seating while Airbus has changed to a four class cabin, including premium economy.
We have enough information of the A380 equipped with a three class cabin to be able to make a comparison using three class rule sets. We will therefore apply a three class cabin to the A380 and 747-8 that will have modern seating standards and pair that with Boeing’s tougher payload weights and enroute reserves.
Summary:
07 August 2015, ©. Leeham Co: Now that we have explained the range consequences of weight and fuel limited airplane operations, we might as well explain the last important part of the range of an airliner: Why the practical range is always shorter than what the OEM says.
When an airliner OEM gives the design or brochure maximum range of an aircraft, they do that with an aircraft in a “show-room” configuration and which is loaded with a filled cabin only; no cargo is included in the calculation. Further, in the cargo area, there is only bulk-loaded passenger bags. Container loading of the bags would have cost tare weight for the containers used and weight is to be avoided when stipulating the maximum design range.
In practice, we would have to consider tare weight for bags containers and possible cargo when discussing what practical range an airline can plan for a certain aircraft model. But this is far from the whole story. Here is what has to be considered in addition.
July 30, 2015: Scott Fancher, regarded as the person to come in and take over troubled programs at Boeing, has been named to take over the KC-46A program.

Scott Fancher. Source: Boeing.
Fancher originally came to Boeing Commercial Airplanes from the Boeing defense unit to take over the 787 program at a time when development and design issues were rampant and the plane had yet to be delivered to a single customer.
After that was straightened out, Fancher took over new airplane programs and then moved to oversee development of the 777X, which is Boeing’s response to the Airbus A350 XWB. Although the 777X is a derivative, Boeing’s 747-8 derivative was two years late (in no small part due to the knock-on effects of the 787 program problems). Fancher’s charge with 777X was to be sure it comes in on time and on budget.
Subscription required.
Introduction
July 28, 2015: © Leeham Co. Trying to decipher what the airframe Original Equipment Manufacturers (OEMs) are going to do is a sporty game that is often analogous to Kremlin watching, especially when it comes to Airbus and Boeing.
The OEMs are naturally circumspect about most everything they do: product development, aircraft pricing, sales campaigns, etc.
They also often are like lawyers when it comes to promoting their products in the public domain: cherry-pick the data that supports your product and which puts your competitor’s product in the worst possible light.
Aerospace analysts, consultants and media (as well as the enthusiast) look anywhere and everywhere for information to discern what the OEMs are up to or how the airplanes are performing or whatever the soup de jour is.
There is more information in the public domain than you would think.
July 25, 2015: This is a 45 minute Air Crash Investigation episode about the Qantas Airway Flight 32 Airbus A380 engine failure and the subsequent events. Aside from the interesting circumstances, this demonstrates Cockpit Resource Management. What especially caught our eye was at the end, when the Captain made comment of automation vs human crews. With discussion from time-to-time about having one pilot, no pilots or someone on the ground controlling the airplane (as with a drone), this is why we like having real people in the cockpit. Qantas 32 is a good example of of how pilots on the scene vs human monitoring on the ground is the much better way.
https://youtu.be/vbDqpD80_u0
17 July 2015, ©. Leeham Co: It is summer in south of Europe and we have had over 30°C/86°F for weeks. It makes one realize the conditions where the engines have to work over their flat rating point in the Middle East.
Aircraft engines are a bit fidgety. They don’t like temperature although they are made to sustain that their hottest parts, the nozzle and first turbine after the combustor, gets scalded to 1700°C/3,092°F or more.
Go down to the very back end of the engine and we come to where the key engine parameter, EGT (Exhaust Gas Temperature), is measured. It determines a lot of things, among them the time the engine stays on wing. Things are typically 700°C/1,832°F cooler here and this is where a reliable temperature measurement probe can be placed. Based on its values, the total health of the engine’s core is determined. It is also a key input whether the engine shall be throttled back in a hot take-off like in the Middle East.