SR-72 is the tech now it's officially finished its role in classified operations. That's confirmation enough that there's an "SR-73" in full operation.
What we do know is the declass report of the tech that's now being called SR-72, fits the description of the "aurora" plane and the declass stated it had advanced optical camouflage so that it's underside looked like the sky above back in the 70s (iirc), which we're not there yet.
The black projects are at least 60 years ahead of what we know in the unclassified world.
SR-72 is the tech now it's officially finished its role in classified operations. That's confirmation enough that there's an "SR-73" in full operation.
What we do know is the declass report of the tech that's now being called SR-72, fits the description of the "aurora" plane and the declass stated it had advanced optical camouflage so that it's underside looked like the sky above back in the 70s (iirc), which we're not there yet.
The black projects are at least 60 years ahead of what we know in the unclassified world.