brochure snecma gamme civile va ok
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PROPELLING YOUTHROUGH TIMEAND SPACE
COMMERCIAL
AIRCRAFTENGINES
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2 SNECMA COMMERCIAL AIRCRAFT ENGINES
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Snecma is the aerospace propulsion specialist in theinternational technology group SAFRAN. We design,develop and produce commercial and military aircraftengines, as well as propulsion systems for launchersand satellites. Our products are exported worldwide.
Snecma, world-class
manufacturer of aircraft androcket engines
SNECMA COMMERCIAL AIRCRAFT ENGINES 3
Commercial enginesThe broadest thrust range on the market
Working with General Electric of the United States, Snecmadesigns, produces, markets and supports the CFM56, the worlds bestselling commercial aircraft engine, and has a stake in the largeturbofans CF6-80, GE90 and GP7200. We are also developing theSaM146 for regional jets, and preparing a new engine concept for thehigh-end business aircraft market.
Military enginesPowering 20 types of aircraft in 40 countriesSnecma 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 enginesThe best balance of performance, reliability and cost
Snecma makes propulsion systems for both launch vehiclesand satellites, including the Vulcain2 and HM7B engines for Ariane 5.Our PPS1350 plasma thruster recently set the world endurance recordfor electric propulsion.
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Snecmas enginesare known for their performanceand environmental friendliness.
4 SNECMA COMMERCIAL AIRCRAFT ENGINES
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SNECMA COMMERCIAL AIRCRAFT ENGINES 5
Spanning the marketSnecma 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 outlookThe 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 Snecmasproducts. 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 riseAir 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.
InnovationOne 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.
Strategy and market
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CFM56 family
The worlds best selling engineFor 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
100seats).
Taking performance to a new planeFeaturing 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% dispatchreliability
Unrivaled market success
More than 450 customersworldwide
Powering more than6,200 Airbus and Boeingaircraft.
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CFM International:
complementary areasof expertiseWorking 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 bestbalanceSnecma 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, afundamental 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.
A CFM56-powered aircrafttakes off somewhere in the world
every 3 seconds.
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CFM56 family
The first CFM56 engines
marked a considerableadvance, since theyconsumed some 20%less fuel than theengines then inservice*.
*Source: Janes Information Group 1996.
CFM56-2The pioneerThe CFM56-2 mainly powers military air-
craft, but kicked off the CFM56s service
career by reengining DC-8 jetliners.
CFM56-3
The CFM56-3 was chosen as sole-sourcepower plant for the second-generation
Boeing 737, providing major savings in
spare parts inventories and tools.
A CFM56-2-poweredaircraft takes off
somewhere in theworld every4 minutes.
APPLICATIONS: Boeing KC-125,C135-FR and KE-3 (tankers),Boeing E3 Awacs, E6 andRC-135R (electronic surveillance);DC-8 Super 70 reengined in cargoor transport versions.
THRUST RANGE: 22,000 to 24,000 lb
SERVICE ENTRY: 1982
APPLICATIONS: Boeing 737-300, 737-400 and737-500.
THRUST RANGE: 18,500 to 23,500 lbSERVICE ENTRY: 1984
World record holder
for on-wing time onshort/medium-haul jetliners.
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The CFM56-5A and -5B power
the entire range of Airbussingle-aisle twin-engine jets,
and have been chosenfor more than 60% of all
aircraft in service.
CFM56-5A
Reliability personifiedDesigned for the Airbus A320, the CFM56-5A was the first engine in this family to fea-
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.
APPLICATIONS: A318, A319, A319 CJ, A320,A321
THRUST RANGE: 22,000 to 33,000 lb
SERVICE ENTRY: 1994
APPLICATIONS:
Airbus A320, A319
THRUST RANGE:
22,000 to 26,500 lb
SERVICE ENTRY: 1988
Less thanone engine-caused delayfor every 1,000takeoffs.
A CFM56-5B-
powered aircraft takes off
somewhere in the world
every 30 seconds.
CFM56-5BModular design
to reduce costsThe 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
by 40%, thanks to the dual annular com-
bustor (DAC) offered on option. The fan
blades feature state-of-the-art 3D aerody-
namic design.
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APPLICATIONS: Boeing 737-600/700/800/900;Boeing Business Jet; Boeing 737 militaryapplication
THRUST RANGE: 19,500 to 27,300 lb
SERVICE ENTRY: 1997
SNECMA COMMERCIAL AIRCRAFT ENGINES 11
CFM56-7BThe 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%.
Developed
in conjunction with
the airframer, the
CFM56-7B is almost
an integral partof the aircraft.
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12 SNECMA COMMERCIAL AIRCRAFT ENGINES
CFM56 family
TECH56, bringing R&Tto marketCFM 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 beenespecially 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
CFM56-5B engines, powering the B737
and A320 families, respectively, and set toenter 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).
Continuous
improvementContinuous 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.
Wovencomposite fan
blades.
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LEAP56TM:Very ambitious goalsOur new research & technology program
LEAP56 (Leading Edge Aviation Propul-
sion) took over for TECH56 in 2005, and is
designed to provide the solid technical
foundations for CFM Internationalsprod-
ucts over the next thirty years.
SNECMA COMMERCIAL AIRCRAFT ENGINES 13
Some of the technologies understudy include:
Light structures for most components
State-of-the-art technologies on fans, transmissions andcontrol systems
Innovative 3D design technologies (compressor andturbine)
Incorporation of more electric technologies
Optimized accessories
Quantum leap
in technologyThe 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 byCFM International.
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Industrial turbines:derivative powerplantfor a growth marketThe LM6000 is an industrial turbine derived
from the CF6 aero-engine designed and
produced by GE. They are mainly used byindustry and municipalities to generate
electricity. General Electric has built up a
solid position in the market for 40 to
50 MW turbines, and Snecma naturally
participates through its partnership
on the CF6. Two LM6000 models are
offered, one conventional and the
other a Dry Low Emissions (DLE) version.
Snecma is a partner in several large turbofan engine
programs, taking responsibility for modules andsubassemblies within our scope of technical expertise.
14 SNECMA COMMERCIAL AIRCRAFT ENGINES
Large engines
CF6-80We have worked with General Electric for
several decades on the CF6-80 family of
engines, which power a number of wide-
body jets built by Airbus and Boeing.
Involved in production, assembly and test-
ing, Snecma is the only engine-maker
other than General Electric to operate an
assembly line for this engine.
APPLICATIONS: Airbus A300-600, A310, A330,Boeing 747-400, 767, DC-10, MD-11
THRUST RANGE: 50,000 to 72,000 lb
SERVICE ENTRY: 1972
PROGRAM SHARE:
10% for the CF6-80C2
20% for the CF6-80E1
GP7200
Power for the A380Snecma 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)
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SNECMA COMMERCIAL AIRCRAFT ENGINES 15
GE90Snecma has a 24% stake in General
Electrics GE90, a high-thrust turbofan that
has logged very satisfactory performance
and reliability in revenue service. The
other partners in this program are IHI of
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.
APPLICATIONS: all versions of the Boeing 777
THRUST RANGE: up to 115,000 lb
SERVICE ENTRY: 1995
The most powerfulaircraft engine in the world.
The GE90 is tested at SnecmasVillaroche plant, home to some of thelargest engine testcells in the world.
Snecma also calls on its
large turbofan testingexpertise and resources to
carry out advanced designstudies and testing of resin
transfer molding (RTM)technologies.
Snecmas GE90responsibilities
low and high-pressurecompressor modules
composite fan blades development and
certification tests.
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Regional and business aviation
Purpose-designed engines for regional aviationThe 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.
16 SNECMA COMMERCIAL AIRCRAFT ENGINES
Market-oriented
innovationThe SaM146 features advanced technolo-
gies for economical operation. It capital-
izes on Snecmas extensive experience
with the market-leading CFM56, both
technologically and in terms of services. At
the same time, it takes advantage of our
experience with the core hot section on
the M88 fighter engine.
The first aircraft-maker to chose the
SaM146 is Sukhoi Civil Aircraft Company
of Russia, for their new regional jets.
SaM146and regional aviationDevelopment of the SaM146 kicked off in
2003.
Because of a particularly favorable out-
look in the Russian market, we teamed up
with Russian counterpart NPO Saturn to
develop this engine on an equal basis.
PowerJet, a single customercontact
To facilitate the developmentof the SaM146, Snecma and
NPO Saturn created the jointventure PowerJet in 2004.
PowerJet is in chargeof overall programmanagement, includingdesign, production,marketing and support.It is the single point ofcontract for the aircraftmanufacturer, deliveringa complete propulsion
system comprising theengine and nacelle a first
in the regional aviationmarket. PowerJet is also the single pointof contact for airline support services.In 2005 Snecma and NPO Saturn alsocreated VolgAero, a joint subsidiary thatwill produce components for the SaM146.
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SNECMA COMMERCIAL AIRCRAFT ENGINES 17
New engine conceptSnecma is also working on the core design
for a new family of engines targeting the
long-range business jet market. It could
eventually be used in 40 to 60-seat
regional jets as well. Rated at 8,500 to
10,500 lb of thrust, it incorporates the
latest advances from our commercial and
military engine research & technology
programs.
While it shares certain key technologies
with latest-generation engines such as the
SaM146 and CFM56, it will feature a
brand-new design. This will translate into
a significant 5 to 15% reduction in fuel
consumption and maintenance costs
compared to current generation engines,
while meeting upcoming environmental
requirements.
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18 SNECMA COMMERCIAL AIRCRAFT ENGINES
Snecma invests heavily in research, technology,development and engineering to maintain our marketleadership. We have launched a number of initiatives,from targeted actions spurring internal synergies tolarge-scale programs with research organizations,universities and other companies in France, Europe
and around the world.
Top priorities:
customers and the future
The environment:an economic and political challengeAs 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 programsSnecma 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 andCO2 emissions.
*SILENCE VITAL (Environmentally Friendly Aero Engine) CLEAN NEWAC.
Listening to our customersAt 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 boardOur 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.
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Computer-aided design (CAD)
SNECMA COMMERCIAL AIRCRAFT ENGINES 19
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CFM56-2Boeing 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
10, alle du Brvent CE1420 Courcouronnes91019 vry Cedex FranceTel.: 33 (0) 1 69 87 09 00Fax: 33 (0) 1 69 87 0902
www.snecma.com Designandproduction:
.Ph
otos:Corbis/Skyscan/DR,J.James/B.V
.Bery/Getty,AlainVidon/Snecma,ricDrouin/Snecma,StudioPons/SAFRA
N,DRSnecma,DelafossePhilippe/AIrFranceJune2006
Applications