Leeham News and Analysis
There's more to real news than a news release.
There's more to real news than a news release.
Leeham News and Analysis
- Another One Bites the Dust; alternative energy gives way to realities February 18, 2025
- Howmet tariffs to be paid by customers: CEO February 17, 2025
- Safran hails ‘landmark’ 2024 with record results February 14, 2025
- Bjorn’s Corner: Air Transport’s route to 2050. Part 9. February 14, 2025
- Politics and the FAA February 13, 2025
Odds and Ends: Designing 737 MAX; RR & PW; CFM
737 MAX: Boeing Frontiers Magazine has a long article with lots of pictures describing the designing process of the Advanced Technology Winglets.
RR-PW on big engines: Aviation Week has this article speculating on the prospect of Rolls-Royce and Pratt & Whitney teaming to offer an engine for the Boeing 777X.
CFM says the use of advanced materials will reduce fuel consumption in the LEAP-1A (Airbus) engine by 1.5%, which happens to be the amount John Leahy of Airbus said that PW’s GTF has an advantage over LEAP.
Odds and Ends: Airbus Wants A380 Cost Cuts
http://online.wsj.com/article/SB10001424052702303644004577522643299354320.html
Quote:
Airbus executives have said they expect that by 2015, for the first time, the cost of building each A380 will be less than its sales price.
CFM and CMCs:
aren’t those 1.5% ( or a bit more ) the “shovel of coals” they had added to the specs to siddle up to the GTF?. This news then is about the how of achieving advertised specs and not a further increase in specs, right?
Pratt is also working on CMC in West Palm Beach. They seem to be dismissing and developing it at the same time.
http://www.flightglobal.com/news/articles/in-focus-pw-doubts-readiness-of-key-technology-for-cfm-engine-371586/
The the PW1000-1400 seems conservative apart from the gearbox.
CFM needs CFCs to achieve their targets with acceptable on wing time.
P&W does not. Simple.