A 1960s light fighter now mostly flying as an adversary aircraft. Live F-5 Tiger II positions.
No F-5 Tiger II is transmitting ADS-B at the moment.
Military aircraft are not obliged to broadcast, so this happens regularly. The count refreshes every thirty seconds.
Nothing of this type is up right now.
Most of the F-5s visible here are pretending to be someone else. The US Navy and Marine Corps fly the F-5N as an adversary aircraft, simulating an opposing fighter for aircrew working up to deployment, and those units transmit ADS-B far more readily than a front-line fighter squadron does.
The airframes themselves are older than the pilots. Many US Navy F-5Ns are ex-Swiss Air Force aircraft bought second hand and refurbished, which is why the type persists half a century after Northrop designed it as a cheap export fighter.
Elsewhere it is still a real fighter. Brazil, Iran, South Korea, Taiwan, Thailand and others operate upgraded F-5s, though few of those transmit in a way this feed would pick up.
Because adversary training does not need a modern aircraft, it needs a cheap, agile one available in numbers. The F-5N costs a fraction of a front-line fighter to fly and behaves enough like a small opposing jet to be useful.
Mostly Switzerland. The Swiss Air Force sold a large batch of low-hour F-5E and F-5F airframes, which were refurbished and re-serialled for American use.
Closely. Both are Northrop designs from the same programme — the T-38 Talon is the trainer and the F-5 is the fighter developed from it. The family resemblance is obvious in the fuselage.