Aerospace experts have emphasized that replacing the Tejas Mk1A’s F404-IN20 engine would involve far more than a simple engine swap. Integrating alternative powerplants would require modifications to air intake systems, structural mounts, thermal management, avionics integration, flight-control software, and weapons certification processes. Such a transformation would effectively create a new aircraft variant, demanding extensive testing, validation, and certification before operational deployment. The challenge underscores the complexity of fighter aircraft propulsion integration.
