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STA 49,5: EGT mesuring plane
N1 (~ 5000 RPM at 100%)
N2 (~ 15000 RPM at 100%)
5 7
5 bearings
1 B
2 R
3 B
4 R
5 R
2
4
9
3
2
3
Flow path air temperature rise
15
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
SAME ENGINE FOR 2 A/C APPLICATIONS
CFFM5566--55A FFaamiillyy
-5A1
25 Klbs
-5A3
26.5 Klbs
-5A4
22 Klbs
-5A5
23.5 Klbs
A320
A319
Engine Ratings & Applications
16
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
1. Coniptical Spinner
Minimizes ice accretion
Maximizes hail ingetion capability
2. Fan
36 titanium fan blades
3D aero design efficiency 90%
3. Booster
4 stages
New 3D aero design
4. HPC
High Pressure Compressor ed
Hard coated blades
HIGH PERFORMANCE
LOW DETERIORATION DESIGN
5. HPT
High Pressure Turbine
ECU optimized HPTCC
IMPROVED EFFICIENCY & IMPROVED DURABILITY
6. LPT
Low Pressure Turbine
LPTACC modulated cooling flow
IMPROVED PERFORMANCE & INCREASED T°CAPABILITY
1
2
3
4
5
6
CFM56 -5B
7
7. Combustion Chamber
20 Fuel nozzles
2 Igniters
Burner Staging Valve
DAC option
40 fuel nozzles
LOWER EMISSIONS
17
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
CFM5566--55B//P
IIMPPRROOVVEEMEENNTTSS
1
2
3
1. HPC
3-D aero HPC compressor
2. HPT
Latest HPT blade design
• Increased cooling
3. LPT
Redesigned New LPT stage 1 nozzle
KKeeyy CChhaannggeess
18
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
-5B1/P
30 Klbs
-5B2/P
31 Klbs
-5B3/P
32 Klbs
-5B4/P
27 Klbs
-5B5/P
22 Klbs
-5B6/P
23.5 Klbs
-5B7/P
27 Klbs
-5B8/P
21.6 Klbs
-5B9/P
23.3 Klbs
A321
A320
A319
A318
SAME ENGINE FOR 4 A/C APPLICATIONS
Engine Ratings & Applications
CFFM5566--55BFFaamiillyy
Thrust rating
CFM56-5BX/P CFM56-5BX/2P
New 3D aéro design
DAC option
19
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
CFM56-55B33//P Naameeppllaattee
The reference certified thrust level at Take Off for CFM56-5B3/P is 32,000lbf
(nameplate)
• It corresponds to a sea level static thrust level
The CFM56-5B3/P thrust rating has a Mach Bump to maximize aircraft performance
Thrust
equivalent to Current 5B3/P rating ( including Mach Bump)
33,000lbf
32,000lbf
Usual fixed rating
Mach Number
To emphasize the real capacity of the engine during T/O phase, CFM marketed its
CFM56-5B3/P engine as an equivalent 33,000lbf T/O thrust engine.
6422H - 03/01
20
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
CFM56-55A vvss ––55B Deessiiggnn
CFM56-5A
CFM56-5B
36 Fan blades, 68,3 inchØ
Coniptical Spinner
4 Stage LPT
4 stage Booster
36 Fan blades, 68.3 inchØ
3 stage Booster
Conical Spinner
4 Stage LPT
Spinner shape
• Conical: Provides best ice
accretion characteristics
(minimizes)
• Elliptical: Provides best hail
ingestion capability
• Coniptical: A compromise
between ice accretion
characteristics and hail
ingestion capability
Conical
Elliptical
Coniptical
21
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
Ennggiinnee Coonnttrrooll Syysstteem
Engine Air Contr ol System
Engine Fuel Control System
Engi ne St ate / R equ est
Aicraft S tate / R eques t
Pilot Requ est
2
1
Pilot Request
FMC
Engine Sensors
ECU
HMU
FADEC (Full Authority Digital Engine Control)
No mechanical connection cockpit to engine
Analogous to “fly by wire” aircraft control system
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CFFM556 Flight Operations Support(3)
