[fso301]

Elmendorf in near Anchorage and mountains are to the North and Northeast.

The plane may have suddenly "dropped" from ATC radar due to being shadowed by a mountain or becoming part of a mountain. Then again, how was ATC radar able to track the $200 million stealth fighter?

For those thinking about a "Dash to Cash" in Western Siberia, the plane would have needed to fly another ~800 miles.

[ex 98C MI Dude]

ATC would have it via IFF transponder, not a skin paint. Which is why when the transponder went off, it dropped off the operator’s screen.

I suspect a rock filled cloud may have been the end for that flight. RIP, Raptor pilot.

[A.A. Cunningham]

Then again, how was ATC radar able to track the $200 million stealth fighter?

Eureka! Another one has finally seen the light.

[Non-Sequitur]

Then again, how was ATC radar able to track the $200 million stealth fighter?

Through it's transponder.

[3niner]

Then again, how was ATC radar able to track the $200 million stealth fighter?

The planes have transponders that make them show up very well during training operations.

[PapaBear3625]

Then again, how was ATC radar able to track the $200 million stealth fighter?

ATC radar works off transponders in the aircraft. The aircraft has to deliberately "want" to be seen.