You’re right, of course. But, I must admit to being at least a “little” curious.
Of course we all are. The issue is actually trying to find out - if they maintain OPSEC properly, we wont until it’s on it’s way to obsolescence, as it should be. There’s still avionics items I dealt with back in the late 80’s/early 90’s that are somewhat out in the public sector that I will not discuss because they have never been declassified.