26 Sep 2017, 19:29
I just want make two points crystal clear:
1. The DSI technology has not been developed in the mid 1980's when the F-22 inlet configuration was designed and chosen. It is obvious that the F-22 inlet has met all performance requirements of the ATF program. I do not believe that DSI was ever being considered for the Raptor in that time frame.
2. Here in 2017, almost thirty years later, someone can certainly perform an in-depth hypothetical study as to the appropriateness of using DSI for the Raptor to met all ATF performance requirements. However, this study needs to include all the knowledge base and the latest state-of-the-art techniques to bear. Whatever our discussions here maybe, they could all be personal conjectures and preferences at this stage.