Low fuel burn
All critical parts of the engine are designed for low fuel burn, giving airlines significant savings: - Optimized fan blades and low-pressure compressor
- Reduced weight on all critical parts (fewer fan blades and lower number of high pressure-compressor and turbine stages, aluminum case)
- High combustion efficiency
- Enhanced HPT efficiency
The engine provides the best SFC of its class, plus reduced weight and enhanced aerodynamic design (nacelle and fan diameter). | | | |  |
Low direct maintenance costs
The SaM146 features a simple architecture drawing on CFM‘s experience, with a 20% reduction in parts count: single-stage high-pressure turbine, plus high-pressure compressor and low-pressure turbine with significantly fewer stages and parts. Along with improved production methods and reduced parts costs, this considerably lowers maintenance costs.
The engine design strikes the best compromise between performance and operating costs. All materials have been chosen to maximize operating life and repairability.
In particular, Life Limited Parts (LLP) are designed for an on-wing life of 20,000 cycles, providing the best tradeoff between service life, weight and cost.
Maintainability was designed in from the outset. Using 3D digital models, the engine is optimized for easy installation and maintenance operations (engine change in less than 2 hours, LRU replacement less than 30 min). Digital modeling was also used to develop the tooling and maintenance training software.
High resale value
The SaM146 was designed to maximize customer value across the board.
In addition to offering significant margins in relation to current environmental standards, the PowerJet SaM146 will retain value throughout its service life because of its long-term product strategy and on condition maintenance design.
