The Iranians shooting down an F-35 is a game changer. The F-35 is almost invisible to AMERICAN technology, but they never tested it against FOREIGN technology. And if the Iranians have technology to track it, guaranteed the Russians and Chinese have the technology.

The TLDR: it is now official - the F-35 is obsolete.

Iranians have used conventional optical tech. The promise of the F35 is to be detected late by conventional long range radar. They were never supposed to be invisible or quiet.

Granted that makes the stealth advantage very limited in terms of usage: coming from far away undetected. Then be very visible.

Besides yes, China claims they can detect them with their satellites network and a France military equipment maker is apparently developing a radar that detects stealth jets. So that advantage is apparently not going to last.

And we know just how dependable American ‘promises’ are.

A ‘stealth’ jet can be detected, not by what is ‘visible’, but by what background is NOT ‘visible’. Paint the area with a beam from behind, and where the beam ISN’T is where the jet IS.