LEAP TECHNOLOGY - ON THE CUTTING...

28th Annual Commercial Aviation Industry Suppliers Conference March 3-5, 2014

PRESENTED BY:

WILLIAM H. BROWN GENERAL MANAGER, CFM/LEAP MARKETING

LEAP TECHNOLOGY - ON THE CUTTING EDGE

EXPERT INSIGHTS AND RELIABLE INFORMATION FOR THE AVIATION INDUSTRY

Proceedings Sponsored by:

PantoneMatchingSystem

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On the cutting edgeLEAP Technology

CFM, CFM56, LEAP and the CFM logo are trademarks of CFM International, a 50/50 joint company between Snecma (Safran group) and GE. The information in this document is CFM Proprietary Information and is disclosed in confidence. It is the property of CFM International and its parent companies, and shall not be used, disclosed to others or reproduced without the express written consent of CFM. If consent is given for reproduction in whole or in part, this notice shall appear in any such reproduction in whole or in part. The information contained in this document may also be controlled by the U.S. and French export control laws. Unauthorized export or re-export is prohibited.

2 / CFM Proprietary Information subject to restrictions on the cover

LEAP performance, execution and technology

Performance… fuel burn, maintenance cost,

reliability, emissions & residual value

Execution… 21 CFM service entries

on time, on spec

Technology… future of engine materials and

aerodynamics


PerformanceExecution

Technology


LEAP fuel efficiency already demonstrated

Engine efficiency proven in service

15%

better

15%

better

8%

better

*Installed comparative SFC taking size effects into consideration

LEAPGE90(scaled)*

GEnx(scaled)*

CFM56-5B/7B


Engine core drives maintenance cost

Total maintenance cost contribution

LEAP focused on core to control maintenance costLow-pressure system kept simple, low temp. and low-speed

~5%

Fan and booster

LPT

~90% ~5%

Core and front LPT stages• Debris rejection system• Low temp. profile combustor• Cooling, coatings and CMC’s• Same metal temp. CFM56


LEAP designed for engine reliability

Source: Airframer historical reliability data

LEAP accessory gear box Fan mounted

proven designall single aisle engines

easy access1 person, 2 minutes

lower temp.no soak back heat issues

Departure Delay(per million departures)

0

50

100

150

200

250

300

Fan mount AGB -LEAP

Core mount AGB

2x



Technology


CFM experience supports LEAP program execution

1980 1985 1990 1995 2000 2005 2010

CFM56-2CFM56-3

CFM56-5A

CFM56-5BCFM56-7B

CFM56-5C

Entry into serviceEngine upgrade

Tech Insertion CFM56-5B PIPCFM56-7BE

21 entries into service in 30 years …

all on time and to spec

8 engine upgrades certified

600+ million flight hours experience

24,000 + engines delivered


2012 2016201520142011 2013 2017

LEAP development on time

On time

On time

On time

CertificationEntry into service

1st engine to test

Design freeze

Boeing 737MAXsole source

LEAP-1B

Design freeze Certification

Entry into service

1st engine to test

Comac C919sole source

LEAP-1C

Design freeze

1st engine to test Certification

Entry into service

Airbus A320neoLEAP-1A

On time

On time


1st Engine to Test fired Sept. 4th … 2 days early

FETT early to date set 3 years ago

Achieved 50% power on first

day

Full power achieved after a few

break-in runs

Run at power above full rated thrust of 33,000 lbs.

400 cycles, 300 hours

Same engine performed early icing tests



Technology


Carbon fiber fan blade … less weight, more durable

• No relube

• No dovetail wear

• More impact resistant

• 1000 pounds less weight

• Lighter fan disk

• Lighter containment

• Lighter structures

18+

years in service

30+million flight hours

0 AD’s

airworthiness directives


System ejects debris before entering the core… sand & dirt exits through inward opening doors… protects compressor & turbine

Debris rejection … core protection

Detailed view


High compression ratio … fuel efficiency

Advanced sweepairfoils

22:1High pressure compression ratio

End wall contouring

Balanced stage loading

Bowed stators


Lean burn combustor … cooler combustion

Lean burning LEAP combustor• Lean flame reduces peak

temperature

• Improves turbine durability for better time on wing & maintenance cost

Typical rich burn combustor• Combustion air injected thru liner

creates local hot spots

• Hot spots impact downstream part durability

Lean Burn

Rich Burn


Ceramic Matrix Composites … beyond metals

1/3the weight of metal

2x

material strength

20%greater thermal capability

less cooling air

needed

LEAPStage 1 CMC Shroud


Harsh environment technology & testing

CFM56 lessons Debris Rejection

Adv. HPT Cooling

Solid LPT Nozzle

Learn• CFM56 improvements incorporated• GE90 / GEnx system reduces core debris ingestion

Low temp. comb.

Sand ingestion New dust ingestion rig

Design• Rugged High Pressure Compressor• CMAS resistant combustor coating• Eliminate cooling passage blockage

Prove• GE/CFM dust ingestion rig completed• Raw Gobi Desert dust used for ingestion testing

Rugged HPC


LEAP technology extends to manufacturing… additive manufacturing

Design freedom• Complex parts not typically possible

Time savings• Fast turnarounds• Grow complex parts in one build

Material strength• Achieve fully dense properties

Lighter weights• Achieve strength while reducing

weight


Thank you

LEAP TECHNOLOGY - ON THE CUTTING...

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