Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Bjorn’s Corner: Air Transport’s route to 2050. Part 18. April 18, 2025
- Natilus: Composite BWB, entry-into-service by 2029, 570 on order April 17, 2025
- China bans Boeing, US parts imports in tariff war April 15, 2025
- Boeing welcomes COMAC competition as Asia-Pacific demand soars April 15, 2025
- How good is the C929? April 14, 2025
Regional operations with the Turboprop, prop-jet or Jet
- We examined the future of turboprop airliners Jan. 5, 2015, analyzing the backlogs of Bombardier and ATR–and the ATR overwhelming dominance of the current turboprop sector. This is the second of a series looking at this sector.
By Bjorn Fehrm
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Introduction
08 Feb 2015: Passenger traffic is growing the world over on a regional, domestic and international level. For domestic and international airlines the choice of mainline transport aircraft is clear today: there are only two vendors, Boeing and Airbus, and they produce similar products.
For regional transportation there is more choice. First of all, one can chose type
of aircraft, turboprop or jet. Within jet, there are several OEMs that are active. The choice in turboprop is more restricted. In practice, the choice stands between the classical turboprop with ATR and a faster type from Bombardier, the Q400 “Prop-Jet” as it is called, as its speed lands between the classical turboprop and regional jet.
The question is, what are the real differences between them in terms of design, passenger comfort and economics and what is the right choice for a market segment? We will take a deeper look into this by analyzing the ATR72 as the classical turboprop, the Bombardier Q400 as the Prop-Jet and CRJ700 as the regional jet.
Summary:
- The ATR72-600, Bombardier Q400 and CRJ700 are all about the same size, around 70-80 seats single class or 60-70 seats dual class.
- They offer different comfort levels, and it is not all about speed.
- In developing the economics in two steps we seek the crossover points between the different types.
Areas of investigation of TransAsia GE235 accident
A TransAsia ATR 72 crashed yesterday on take off from downtown airport.
Investigators will look at the following:
- Because the reported Mayday call indicated engine flameout, there will be initial focus on the engines and with it, anything that contributes to flameouts, such as fuel contamination, bird or other foreign object ingestion, and mechanical issues;
- They will look at why the airplane didn’t climb out under power of one engine, as airplanes are designed to do;
- Did only one engine flame out or did both;
- What caused the airplane to drop off dramatically on one wing to a perpendicular position as it crossed the highway–did the plane fall off on one wing due to flight conditions or did the pilot, believing he was going to lose the plane, bank sharply in a desperate attempt to avoid crashing into the city;
- Pilot actions in handling the flameout and subsequent actions in flying the airplane;
- Did the pilots deliberately head for the river to avoid crashing into buildings;
The mechanical history of the airplane; and - The history of the pilots.
Recovery of the flight data recorder and cockpit voice recorder should provide information quickly to answer many of the questions above but the full investigation typically takes a year or more.
Odds and Ends: Rescuing a polar bear cub; new turbo-prop, sort of
Rescuing a polar bear cub: Long-time readers of this column know we’re fascinated with polar bears, so when we received the following press release, we couldn’t help but share the story with you.
Mi-26 saves polar bear cub
The crew of a Russian Mi-26 military helicopter from the Eastern Military District Army Aviation airbase saved a baby polar bear from starving to death in the Arctic, after the young bear became separated from its mother.
The Mi-26 was carrying out a routine transport flight in the Arctic zone, delivering goods from Anadyr to Wrangel Island, when one of the crew spotted a lone polar bear cub wandering along the Chukotka shore. The crew carried out several sweeps of the area, but there was no trace of the cub’s mother. The decision was therefore taken to pick up the polar bear cub.
Bombardier woes go beyond CSeries
The news last week that Bombardier reorganized its business units, laid off another 1,800 employees and saw the retirement of Guy Hachey, president and CEO of the aerospace division, was viewed by some media and observers as an indictment of the CSeries program. While it’s certainly true that delays in the program weigh heavily on BBD, the problems don’t stop with CSeries.
Bombardier has 203 firm orders and 310 commitments for CSeries. This delivery stream doesn’t include any potential rescheduling as a result of the grounding of the Flight Test fleet from May as a result of the engine incident.
Slow sales of the CRJ, Q400 and business jets–as well as program development issues with a new corporate jet–all combined to drag down financial performance and bleed cash. Bombardier doesn’t have the balance sheet strength of Boeing or Airbus, nor strong sales of other airplane family members, to weather the challenges of new airplane development programs.