CFM56-5ATurbofan Engine
22,000 - 26,500 POUNDS THRUST
The CFM56-5A is the powerplant that powered Airbus' entry into the single-aisle market -- the A320. Entering service in 1988, more than 1,100 engines are in service with more than 40 million flight hours. The -5A maintains dispatch reliability above 99.9%.
QUICK FACTS
- First to power the A320
- First ETOPS on the A320
- Highest overall reliability on the A320
- First use of FADEC in CFM56 family
- Most experienced engine on the A320
- Low operating temperatures
- Use of advanced materials
APPLICATIONS
Airbus A319
Airbus A320
THE TECHNOLOGY BEHIND THE CFM56-5A TURBOFAN ENGINE
|
Engine Model
|
5A1 | 5A3 | 5A4 | 5A5 | |||||
| Takeoff Conditions (sea level) | |||||||||
| Max. takeoff (lb) | 25,000 | 26,500 | 22,000 | 23,500 | |||||
| Airflow (lb/sec) | 852 | 876 | 816 | 842 | |||||
| Bypass ratio | 6.0 | 6.0 | 6.2 | 6.2 | |||||
| In-Flight Performance (installed) (35,000 ft - Mach - 0.80 ISA) | |||||||||
| Max climb thrust (lb) | 5,260 | 5,260 | 5,260 | 5,260 | |||||
| Overall pressure ratio at max. climb | 31.3 | 31.3 | 31.3 | 31.3 | |||||
| Max. cruise thrust (lb) | 5,000 | 5,000 | 5,000 | 5,620 | |||||
| Engine Characteristics | |||||||||
| Length (in) | 95.4 | 95.4 | 95.4 | 95.4 | |||||
| Fan diameter (in) | 68.3 | 68.3 | 68.3 | 68.3 | |||||
| Basic dry weight (lb) | 4,995 | 4,995 | 4,995 | 4,995 | |||||
|
Applications:
|
A320 | A320 | A319 | A319 | |||||
DEVELOPMENT TIMELINE
| Milestone | Date | Milestone | Date |
| Initial development contract | September 1984 | Engine certification | August 1987 |
| First engine to test (FETT) | January 1986 | Entry into service | April 1988 |
| First flight on B707 FTB | June 1986 |
DID YOU KNOW?
The CFM56-5A demonstrates an impressive dispatch reliability rate: less than one delay or cancellation per 1,600 aircraft departures due to engine causes for the A320/CFM56-5A association.