Dr Demiroglu, the new MD of Tusas says a great deal but doesn’t give any specifics that would quench our thirst.
He is talking about sixth generation fighter program. Sounds nice to the ear. But let us walk before we can run. We still don’t have a fully operational 5th generation plane yet. Let us mature that program and then discuss being number one in the world in 6th generation technology. (That doesn’t mean don’t work on it. But be more subtle and humble)
One of the prerequisites of a sixth generation plane is it’s Adaptive Cycle Engine. We don’t even have an operational 5th generation engine. Heck! We don’t even have an operational turbofan engine yet. GE and P&W are the only companies that have a working Adaptive Cycle Engine in the world that we know of. GE’s XA100 ran in 2020. Pratt & Whitney has an industry demonstrator engine XA101 that they are still developing. It ran first time in 2021. These engines develop 45000lbf thrust. To do this they need extreme TIT values. (Turbine Inlet Temperature). In F135 engine TIT values reach 1980 degrees Centigrade. Even with latest generation Single Crystal turbine blade usage, the engine life is detrimentally affected under these high temperatures. So use of CMC components is the way forward. Currently only some domestic airliner engines (like CFM Leap engine) are using the CMC materials in operational aircrafts, in Combuster Liner components, vanes, disks, hubs, rails, blade outer air seals and other turbine components. There is still a great deal of ground to be covered to mature this technology.
What makes a plane 6th generation?
The jury is still deliberating on the answer to that question.
But there are basics that almost everyone agrees on.
AI, Sensor Fusion, Better Stealth Characteristic, Large Data Transfer Rates Capabilities, Self Repair Capability, Longer Range Engagement Capabilities, Adaptive Cycle Engines, use of high powered Directed Energy Weapons.
The degree of application of these new technologies will vary and make one fighter better than the other. But they will still be one step ahead of current 5th generation planes with some degree of overlap between the two generations as there is a very fine line that separates both.
Proof of the pudding is in the eating.
We need to see how Dr Demiroglu will perform in the coming months with the execution of his promises. He has big shoes to fill.
He said that TEI has progressed well deep in to the production of the Indigenous engine for the KAAN. But he did not specify any dates for delivery of a prototype and at what level of progress they are at. This is a vital point for the success of the MMU programme.
Engines are the soft belly of our defence industry. Right steps have been taken in some areas. But only after a gun was pointed at our head. Let’s hope that we have learned from our mistakes.
CMC performance tests:
Non CMC part
CMC part
As well as being high temperatures tolerant, these components are very tough.
GE’s Adaptive Cycle Engine