CriticalThought
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IMO Block 3 doesnt deserve a new engine..RD-93 will be enough since composite will be incorporated and AESA is lighter than PESA
The main feature we are looking for in RD-93 MA is FADEC
https://en.wikipedia.org/wiki/FADEC
When truly combined with digital FBW it lessens the pilot's burden by eliminating the need to continuously control the thrust. The resulting freeing up of cognitive facilities can be a decisive factor in a battle of life and death.
The wikipedia page lists the following advantages
- Better fuel efficiency
- Automatic engine protection against out-of-tolerance operations
- Safer as the multiple channel FADEC computer provides redundancy in case of failure
- Care-free engine handling, with guaranteed thrust settings
- Ability to use single engine type for wide thrust requirements by just reprogramming the FADECs
- Provides semi-automatic engine starting
- Better systems integration with engine and aircraft systems
- Can provide engine long-term health monitoring and diagnostics
- Number of external and internal parameters used in the control processes increases by one order of magnitude
- Reduces the number of parameters to be monitored by flight crews
- Due to the high number of parameters monitored, the FADEC makes possible "Fault Tolerant Systems" (where a system can operate within required reliability and safety limitation with certain fault configurations)
- Saves weight