The CFM56-5B is the engine of choice for the A320 family, having been selected to power nearly 60 percent of the A318/A319/A320/A321 aircraft ordered. One of the primary factors behind the CFM56-5B's broad-based market acceptance has been its simple, rugged architecture, which gives it the highest reliability, durability and repairability in its class.
about CFM56-5B Engines
PROVEN
The CFM56-5B, a high-performance, low-risk derivative engine of the CFM56 family, was originally developed to power the Airbus A321. Today, it is the only engine that can power every model of the A320 family with one bill of materials. More than 5,000 CFM56-5B engines have been delivered and this fleet has accumulated more than 80 million flight hours.
BREAKTHROUGH
The CFM56-5B was the first engine to introduce advanced double annular combustor (DAC) technology in the mid-1990s. This technology reduced NOx (oxides of nitrogen) emissions by as much as 45 percent.
CFM keeps investing in technology enhancements that make the CFM56-5B even better. In October 2007, Tech Insertion became the production configuration for all CFM56-5B engines. Tech Insertion provides operators with significant improvements in fuel consumption, emissions levels, and maintenance costs.
Most recently, as of November 2011, all deliveries are in CFM56-5B/3 PIP configuration. This new production standard provides 0.5% improved fuel efficiency and 1% lower maintenance cost.
DID YOU KNOW?
The CFM56-5B was the first engine to introduce advanced double annular combustor (DAC) technology in the mid-1990s. This technology reduced NOx (oxides of nitrogen) emissions by as much as 45 percent.
HISTORY OF THE CFM56-5B TURBOFAN ENGINE
The CFM56-5B, a high-performance, low-risk derivative engine of the CFM56 family, was originally developed to power the Airbus A321. Today, it is the only engine that can power every model of the A320 family with one bill of materials. This provides airlines with a distinct commonality advantage, in addition to the lowest cost of operation on this application.
Noise and emissions have become key factors in aircraft fleet planning and operations. The CFM56-5B was the first engine to introduce advanced double annular combustor (DAC) technology in the mid-1990s. This technology reduced NOx (oxides of nitrogen) emissions by as much as 45 percent. With the introduction of Tech Insertion and new combustor technology in 2007, CFM has been able to offer operators comparable improvement in a much simpler design. The optimized Tech Insertion combustor emits 25 percent less NOx to ensure that the engine meets the CAEP/6 regulations that went into effect in January 2008.
In addition to lowering NOx emissions, the CFM56-5B Tech Insertion configuration provides operators with up to 1 percent improvement in fuel consumption over the life of the product compared to the base CFM56-5B engine, which also means fewer carbon emissions.
