COMMERCIAL AIRCRAFT ENGINES

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					                 COMMERCIAL
                 AIRCRAFT
                 ENGINES
PROPELLING YOU
THROUGH TIME
AND SPACE
2 SNECMA • COMMERCIAL AIRCRAFT ENGINES
Snecma, world-class
manufacturer of aircraft and
rocket engines
Snecma is the aerospace propulsion specialist in the
international technology group SAFRAN. We design,
develop and produce commercial and military aircraft
engines, as well as propulsion systems for launchers
and satellites. Our products are exported worldwide.




             Commercial engines
             The broadest thrust range on the market
            Working with General Electric of the United States, Snecma
designs, produces, markets and supports the CFM56, the world’s best
selling commercial aircraft engine, and has a stake in the large
turbofans CF6-80, GE90 and GP7200. We are also developing the
SaM146 for regional jets, and preparing a new engine concept for the
high-end business aircraft market.




             Military engines
             Powering 20 types of aircraft in 40 countries

              Snecma designs, develops, produces and supports engines for
              military transport, training and combat aircraft. Our flagship
products are the M53-P2 powering the Mirage 2000, the M88-2 on the Rafale,
and the TP400-D6 turboprop for the new Airbus Military A400M military
transport.




             Space engines
             The best balance of performance, reliability and cost
              Snecma makes propulsion systems for both launch vehicles
and satellites, including the Vulcain®2 and HM7B engines for Ariane 5.
Our PPS®1350 plasma thruster recently set the world endurance record
for electric propulsion.




                                           SNECMA • COMMERCIAL AIRCRAFT ENGINES 3
        Snecma’s engines
        are known for their performance
        and environmental friendliness.




4 SNECMA • COMMERCIAL AIRCRAFT ENGINES
Strategy and market

  Spanning the market
Snecma develops, produces and markets engines and propulsion subassem-
blies for commercial airplanes. Working alone or in partnership, we apply the
propulsion technologies needed to cover all main market segments: commer-
cial airliners with more than 100 seats, regional and business aircraft. The
engines we produce are known for their performance, reliability, economical
operation and environmental friendliness.


  Demanding market, encouraging outlook
The aviation market is a cyclical business. It is currently in a strong growth
phase, with major fleet replacement requirements. There are several reasons
for this trend: the steady growth of low cost carriers; increasingly stringent
operating standards; and a focus on economies of scale in maintenance. Soar-
ing oil prices are another decisive factor, driving greater demand for the lat-
est, most fuel-efficient engines.

Customers, whether aircraft manufacturers, airlines or leasing firms, are very
satisfied with the technological excellence of Snecma’s products. However, they
are also increasingly demanding due to the unending market pressures, and in
particular they expect engines offering the lowest possible cost of ownership.


  Air traffic on the rise
Air traffic has been on a growth curve over the last 20 years. The Asian market
is enjoying buoyant economic growth these days, especially in China and India,
with significant demand for new short and medium-haul aircraft. The regional
aviation market is also very dynamic, specially for 70 to 100-seat planes.
Snecma is therefore focusing its technological and commercial developments
to meet these two market trends.


  Innovation
One of our main priorities is to maintain the technological excellence that
underpins our position as a major player in civil aviation. This depends on sus-
tained investments in research & technology, the development of partnerships,
and proactive technology intelligence.




                                             SNECMA • COMMERCIAL AIRCRAFT ENGINES 5
CFM56 family
The world’s best selling engine
For over 30 years now, Snecma has developed, produced and marketed the CFM56
turbofan family through subsidiary CFM International, equally owned with General
Electric. The CFM56 is the most reliable engine of its generation. Different versions have
been developed to meet customer requirements in the thrust range from 18,500 to
34,000 pounds.

CFM56 engines hold nearly 50% of the engine market for all mainline jets (over
100 seats).


Taking performance to a new plane
Featuring cutting-edge performance and reliability, CFM56 engines are recognized
worldwide for their exceptional time on wing and low operating costs. Another major fac-
tor in their market success is that they easily satisfy new environmental standards and
other regulatory requirements.

We have launched a number of research & technology programs to continue to improve
engine performance, in particular by reducing maintenance costs, noise and pollution.




    Nearly 100% dispatch
    reliability
    Unrivaled market success
    More than 450                        customers
    worldwide
    Powering more than
    6,200 Airbus and Boeing
    aircraft.




6 SNECMA • COMMERCIAL AIRCRAFT ENGINES
                                   CFM International:
        A CFM56-powered aircraft
                                   complementary areas
takes off somewhere in the world   of expertise
                every 3 seconds.   Working through CFM International,
                                   our joint subsidiary with General
                                   Electric, Snecma is responsible for
                                   the following parts of the engine:
                                   • low-pressure section;
                                   • power transmission units;
                                   • several major subassemblies and
                                     components (fuel control and
                                     lubrication systems, electrical
                                     wiring, etc.).

                                   General Electric is responsible for the
                                   following:
                                   • core (high-pressure section);
                                   • engine control system.


                                   Striking the best
                                   balance
                                   Snecma and General Electric split CFM56
                                   assembly, testing and nacelle integration
                                   tasks right down the middle. Responsi-
                                   bility for individual engines depends on
                                     which manufacturer is closer to the air-
                                       craft manufacturer client, mainly
                                        Airbus or Boeing. This approach, a
                                          fundamental part of the Snecma/
                                           General Electric partnership, mini-
                                           mizes costs while maintaining
                                           parity.



                                          General Electric and Snecma have
                                         built a textbook case of trans-
                                         atlantic teamwork over the years,
                                        providing solid foundations to con-
                                      tinue to develop the technologies and
                                    engines that will power aircraft well into
                                   the future.




                                           SNECMA • COMMERCIAL AIRCRAFT ENGINES 7
CFM56 family
                                            The first CFM56 engines
                                            marked a considerable
                                            advance, since they
                                            consumed some 20%
                                            less fuel than the
                  A CFM56-2-powered         engines then in
                      aircraft takes off    service*.
                    somewhere in the
                         world every        *Source: Jane’s Information Group 1996.

                          4 minutes.

                                                          Boeing KC-125,
CFM56-2                                     APPLICATIONS:
                                            C135-FR and KE-3 (tankers),
The pioneer                                 Boeing E3 Awacs, E6 and
                                            RC-135R (electronic surveillance);
The CFM56-2 mainly powers military air-     DC-8 Super 70 reengined in cargo
craft, but kicked off the CFM56’s service   or transport versions.
career by reengining DC-8 jetliners.
                                            THRUST RANGE:         22,000 to 24,000 lb
                                            SERVICE ENTRY:       1982




                                                                                        CFM56-3
                                                                                        The CFM56-3 was chosen as sole-source
                                                                                        power plant for the second-generation
                                                                                        Boeing 737, providing major savings in
                                                                                        spare parts inventories and tools.




                                                                                        APPLICATIONS:    Boeing 737-300, 737-400 and
                                                                                        737-500.
                                                                                        THRUST RANGE:    18,500 to 23,500 lb
                                                                                        SERVICE ENTRY:   1984




                                                                                                           World record holder
                                                                                                      for on-wing time on
                                                                                                   short/medium-haul jetliners.
The CFM56-5A and -5B power
    the entire range of Airbus
 single-aisle twin-engine jets,                  Less than
                                                 one engine-
        and have been chosen                     caused delay
     for more than 60% of all                    for every 1,000
             aircraft in service.                takeoffs.


CFM56-5A                                         APPLICATIONS:
                                                 Airbus A320, A319
Reliability personified                          THRUST RANGE:
Designed for the Airbus A320, the CFM56-         22,000 to 26,500 lb
5A was the first engine in this family to fea-   SERVICE ENTRY:   1988
ture a full authority digital engine control
(FADEC), produced by fellow SAFRAN
Group company Hispano-Suiza. The CFM56-
5A is recognized worldwide for its excellent
dispatch reliability record.




                                                                                               CFM56-5B
                                                                                               Modular design
                                                                                               to reduce costs
                                                                                               The CFM56-5B is the only engine to power
                                                                                               all members of the Airbus A320 family,
                                                                                               from the shortened A318 to the stretched
                                                                                               A321. Its modern technology reduces
                                                                                               noise and nitrogen oxides (NOx) emissions
                                                                     A CFM56-5B-               by 40%, thanks to the dual annular com-
                                                                  powered aircraft takes off   bustor (DAC) offered on option. The fan
                                                                   somewhere in the world      blades feature state-of-the-art 3D aerody-
                                                                      every 30 seconds.        namic design.


                                                                                               APPLICATIONS:    A318, A319, A319 CJ, A320,
                                                                                               A321
                                                                                               THRUST RANGE:    22,000 to 33,000 lb
                                                                                               SERVICE ENTRY:   1994




                                                                                                        SNECMA • COMMERCIAL AIRCRAFT ENGINES 9
CFM56 family
CFM56-5C
Top of the line
The CFM56-5C is the exclusive power plant
for the Airbus A340-200 and -300 long-
range quadjets. Not only is it the most
powerful engine in the CFM family, it is
also one of the quietest in its thrust class,
because of a high bypass ratio and long-
duct nacelle with mixer.



APPLICATIONS: Airbus A340-200 and A340-
300, single source
THRUST RANGE:    31,200 to 34,000 lb
SERVICE ENTRY:   1993




The new CFM56-5C/P, which
entered service at the end of
2003, powers the A340-
300 Enhanced. It
also features 3D
aerodynamic
design for
significantly
reduced fuel
consumption and
maintenance costs,
plus longer on-wing life.




10 SNECMA • COMMERCIAL AIRCRAFT ENGINES
CFM56-7B
The CFM56-7B has taken over from the
CFM56-3 as sole-source power plant on
the third-generation Boeing 737, also
known as the 737 NG or Next Generation.
Developed in conjunction with the cus-
tomer, the CFM56-7B offers a number of
key advantages, including:
• 80% decrease in removal and
  replacement time;
• 15% reduction in maintenance costs
  over the CFM56-3.

These engines can be fitted with an
optional dual annular combustor (DAC),
which reduces nitrogen oxides (NOx) emis-
sions by nearly 40%.



APPLICATIONS: Boeing 737-600/700/800/900;
Boeing Business Jet; Boeing 737 military
application
THRUST RANGE:    19,500 to 27,300 lb
SERVICE ENTRY:   1997




                                 Developed
                        in conjunction with
                          the airframer, the
                        CFM56-7B is almost
                   “an   integral part”
                             of the aircraft.




        SNECMA • COMMERCIAL AIRCRAFT ENGINES 11
CFM56 family
Continuous
improvement
Continuous improvement is a watchword at
CFM International. This is a longstanding
policy, since the dual annular combustor
now offered on CFM56 engines was already
being studied by Snecma and General
Electric 20 years ago. Furthermore, the
CFM56 features a modular design, making it
easy to incorporate new technologies.




TECH56, bringing R&T
to market
CFM International launched the TECH56
research & technology program back in
1998 to anticipate and satisfy customer
requirements for improvements in per-
formance, operating costs and environ-
mental friendliness. Results have been
especially satisfying, since they have
driven significant reductions in mainte-
nance costs, NOx emissions and fuel
consumption.

Some of the solutions developed through
the TECH56 program will be incorporated
on improved versions of the CFM56-7 and
                                              Woven
CFM56-5B engines, powering the B737           composite fan
and A320 families, respectively, and set to   blades.
enter service in 2007 through the Tech
Insertion program. More specifically,
improvements concern the high-pressure
compressor (new blades), combustor
(enhanced dilution) and high and low-
pressure turbines (new blade airfoil,
improved durability).



12 SNECMA • COMMERCIAL AIRCRAFT ENGINES
                                                           Quantum leap
                                                           in technology
                                                           The next generation of engines will have to
                                                           offer higher performance than those now
                                                           in service. Designs will have to strike a deli-
                                                           cate balance, by reducing fuel consumption
                                                           (given unstable, but generally skyrocketing
                                                           oil prices), while still remaining simple
                                                           enough to contain maintenance costs.
                                                           However, perhaps the biggest challenge
                                                           will be to meet increasingly stringent envi-
                                                           ronmental regulations, by significantly
                                                           reducing noise and emissions.

                                                           Meeting these requirements will require a
                                                           quantum leap in technology spanning all
                                                           products. Snecma is already gearing up to
                                                           give aircraft-makers the right engines,
                                                           through new research & technology pro-
                                                           grams such as LEAP56™, coordinated by
                                                           CFM International.




                                                           LEAP56TM:
Some of the technologies under                             Very ambitious goals
                                                           Our new research & technology program
study include:                                             LEAP56™ (Leading Edge Aviation Propul-
                                                           sion) took over for TECH56 in 2005, and is
Light structures for most components                       designed to provide the solid technical
State-of-the-art technologies on fans, transmissions and   foundations for CFM International’s prod-
                                                           ucts over the next thirty years.
control systems
Innovative 3D design technologies (compressor and
turbine)
Incorporation of “more electric” technologies
Optimized accessories

                                                                   SNECMA • COMMERCIAL AIRCRAFT ENGINES 13
Large engines
Snecma is a partner in several large turbofan engine     CF6-80
programs, taking responsibility for modules and
                                                         We have worked with General Electric for
subassemblies within our scope of technical expertise.   several decades on the CF6-80 family of
                                                         engines, which power a number of wide-
Industrial turbines:                                     body jets built by Airbus and Boeing.
derivative powerplant                                    Involved in production, assembly and test-
                                                         ing, Snecma is the only engine-maker
for a growth market                                      other than General Electric to operate an
The LM6000 is an industrial turbine derived              assembly line for this engine.
from the CF6 aero-engine designed and
                                                                     Airbus A300-600, A310, A330,
                                                         APPLICATIONS:
produced by GE. They are mainly used by                  Boeing 747-400, 767, DC-10, MD-11
industry and municipalities to generate
electricity. General Electric has built up a             THRUST RANGE:    50,000 to 72,000 lb
solid position in the market for 40 to                   SERVICE ENTRY:   1972
50 MW turbines, and Snecma naturally
                                                                 PROGRAM SHARE:
participates through its partnership                                      10% for the CF6-80C2
on the CF6. Two LM6000 models are
                                                                           20% for the CF6-80E1
offered, one conventional and the
other a Dry Low Emissions (DLE) version.




                                                         GP7200
                                                         Power for the A380
                                                         Snecma has a 10% stake in the GP7200
                                                         developed by the Engine Alliance (General
                                                         Electric/Pratt & Whitney) for the new Airbus
                                                         A380 super-jumbo jet. We are responsible
                                                         for most of the 9-stage high-pressure com-
                                                         pressor. The first A380 customers having
                                                         chosen the GP7200 are Air France, Emirates,
                                                         Fedex, ILFC and Korean Air.




                                                         APPLICATION:   Airbus A380
                                                         THRUST RANGE: 70,000    to 85,000 lb
                                                         SERVICE ENTRY:   2007 (planned)




14 SNECMA • COMMERCIAL AIRCRAFT ENGINES
The GE90       is tested at Snecma’s
                                                      GE90
                                                      Snecma has a 24% stake in General
Villaroche plant, home to some of the                 Electric’s GE90, a high-thrust turbofan that
                                                      has logged very satisfactory performance
largest engine test                                   and reliability in revenue service. The
                                                      other partners in this program are IHI of

cells in the world.                                   Japan and Avio of Italy.

                                                      The higher-thrust version GE90-115B,
                                                      developing up to 115,000 lb of thrust,
                                                      entered service in 2004. It is the most pow-
                                                      erful engine in the world, and the exclu-
                                                      sive power plant for the Boeing 777-200LR
                                                      and 777-300ER.

                                                      Snecma is involved in the entire program,
                                                      from design and production to support.


                           Snecma also calls on its
                         large turbofan testing
                                                      APPLICATIONS:    all versions of the Boeing 777
                        expertise and resources to
                       carry out advanced design      THRUST RANGE:     up to 115,000 lb
                      studies and testing of resin
                                                      SERVICE ENTRY:   1995
                     transfer molding (RTM)
                    technologies.




                                                                                Snecma’s GE90
                                                                                responsibilities
                                                                          • low and high-pressure
                                                                              compressor modules
                                                                           • composite fan blades
                                                                               • development and
                                                                                 certification tests.




                                                      The most powerful
                                                      aircraft engine in the world.


                                                              SNECMA • COMMERCIAL AIRCRAFT ENGINES 15
Regional and business aviation
Purpose-designed engines for regional aviation
The regional aviation market is booming, especially in North America, Europe and Asia, and is expected to post the highest growth
rate in the air transport industry over the next 20 years. This market demands aircraft and engines that are purpose-designed to meet
specific thrust, cost of ownership and environmental requirements. Snecma is developing an engine tailored for this purpose, the
SaM146. The SaM146 is rated at 14,000 to 17,500 lb of thrust, and is intended for regional jets with 60 to 100 seats on the SM-X
demonstrator, a core design for a new family of engines targeting the long-range business jet market.



                                                                                           Market-oriented
SaM146                                                                                     innovation
and regional aviation                                                                      The SaM146 features advanced technolo-
                                                                                           gies for economical operation. It capital-
Development of the SaM146 kicked off in      The first aircraft-maker to chose the         izes on Snecma’s extensive experience
2003.                                        SaM146 is Sukhoi Civil Aircraft Company       with the market-leading CFM56, both
                                             of Russia, for their new regional jets.       technologically and in terms of services. At
Because of a particularly favorable out-
look in the Russian market, we teamed up                                                   the same time, it takes advantage of our
with Russian counterpart NPO Saturn to                                                     experience with the core hot section on
develop this engine on an equal basis.                                                     the M88 fighter engine.




                                                                                            PowerJet, a single customer
                                                                                               contact
                                                                                                    To facilitate the development
                                                                                                       of the SaM146, Snecma and
                                                                                                         NPO Saturn created the joint
                                                                                                           venture PowerJet in 2004.
                                                                                                            PowerJet is in charge
                                                                                                             of overall program
                                                                                                              management, including
                                                                                                              design, production,
                                                                                                              marketing and support.
                                                                                                              It is the single point of
                                                                                                              contract for the aircraft
                                                                                                             manufacturer, delivering
                                                                                                            a complete propulsion
                                                                                                           system comprising the
                                                                                                          engine and nacelle – a first
                                                                                                        in the regional aviation
                                                                                           market. PowerJet is also the single point
                                                                                           of contact for airline support services.
                                                                                           In 2005 Snecma and NPO Saturn also
                                                                                           created VolgAero, a joint subsidiary that
                                                                                           will produce components for the SaM146.




16 SNECMA • COMMERCIAL AIRCRAFT ENGINES
New engine concept
Snecma is also working on the core design   While it shares certain key technologies
for a new family of engines targeting the   with latest-generation engines such as the
long-range business jet market. It could    SaM146 and CFM56, it will feature a
eventually be used in 40 to 60-seat         brand-new design. This will translate into
regional jets as well. Rated at 8,500 to    a significant 5 to 15% reduction in fuel
10,500 lb of thrust, it incorporates the    consumption and maintenance costs
latest advances from our commercial and     compared to current generation engines,
military engine research & technology       while meeting upcoming environmental
programs.                                   requirements.




                                                                                         SNECMA • COMMERCIAL AIRCRAFT ENGINES 17
Top priorities:
customers and the future
Snecma invests heavily in research, technology,
development and engineering to maintain our market
leadership. We have launched a number of initiatives,
from targeted actions spurring internal synergies to
large-scale programs with research organizations,
universities and other companies in France, Europe
and around the world.



The environment:
an economic and political challenge
As engine manufacturer, we are increasingly concerned by the noise gener-
ated by engines and their ability to meet environmental regulations, which is
both an economic and political challenge. Our environmental policy applies
to all production facilities and all products – in fact, we target some 20% of
our R&T budget to environmental questions. We seek to develop technolo-
gies that offer the best compromise between technical performance, environ-
mental friendliness and total cost of ownership.

European environmental programs
Snecma coordinates or participates in a number of European Union programs*
bringing together partners from industry, academia and research organiza-
tions. The main aim of these programs is to reduce aircraft engine noise and
CO2 emissions.
*SILENCE® – VITAL (Environmentally Friendly Aero Engine) – CLEAN – NEWAC.



Listening to our customers
At Snecma, customers are our top priority. It is only by listening to them, antic-
ipating their needs and keeping innovation at the cutting edge that we will
maintain our status as a major player in this increasingly competitive market.

Support across the board
Our customers focus more and more on the cost and quality of support serv-
ices. To meet their expectations, we deliver a slate of top-flight services
through our specialized subsidiary Snecma Services: consulting, technical assis-
tance for flight-line support, maintenance, repair and overhaul (MRO) and
tracking of spare parts.




18 SNECMA • COMMERCIAL AIRCRAFT ENGINES
         Computer-aided design (CAD)




SNECMA • COMMERCIAL AIRCRAFT ENGINES 19
Applications




                                                                                           . Photos: Corbis/Skyscan/DR, J. James/B. V. Bery/Getty, Alain Vidon/Snecma, Éric Drouin/Snecma, Studio Pons/SAFRAN, DR Snecma, Delafosse Philippe/AIr France – June 2006
CFM56-2
Boeing KC-135, C135-FR and KE-3 (tankers);
Boeing E3 Awacs, E6 et RC-135R (electronic
surveillance); DC-8 Super 70 reengined in
cargo or transport versionsC

CFM56-3
Boeing 737-300, 737-400, 737-500

CFM56-5A
Airbus A320, A319

CFM56-5B
A318, A319, A319 CJ, A320, A321

CFM56-5C
Airbus A340-200 and 300 single source

CFM56-7B
Boeing 737-600, 700, 800 and 900;
Boeing Business Jet; Boeing 737
military application

CF6-80
A300-600; A310; A330; Boeing 747-400;
Boeing 767; DC10; MD11

GE90
All versions of the Boeing 777

SaM146
Small jets




                                                                                           Design and production:
                                             10, allée du Brévent – CE1420 Courcouronnes
                                                       91019 Évry Cedex – France
                                                        Tel.: 33 (0) 1 69 87 09 00
                                                        Fax: 33 (0) 1 69 87 09 02
                                                           www.snecma.com