Appearing and Disappearing Aermacchi MB-339CD

[Martin_R]

Is it a glitch or could an Italian Air Force Aermacchi MB-339CD suddenly appear flying in Israel at 10K ft and 450 kt and then disappear? During this time, 4 other of these aircraft are flying around the boot of Italy. That seems 'normal.'

[user12345]

Not enough receivers / feeders in the area.