Originally Posted by
Kabobble
Your photo shows XE688, not XE668 as listed above. Is it showing up on ADS-B with the wrong ident?
Not exactly.
The aircraft's ID
on Mode S/ADS-B is its callsign "SC33". The (incorrect) identity "XE668" has been added by whichever flight-tracker the screenshot is taken from (there are so many of them nowadays that I don't recognise which one it is).
Strictly speaking, the identity "XE688" is incorrect, too. The real XE688 was written off more than 60 years ago, and the current aircraft (like many surviving Hunters) is a composite of bits from different aircraft. Most of the airframe is from another Hunter XE704, originally built as a single-seater F.4 and then converted after retirement from the RAF to a two-seat T.72 trainer for sale to the Chilean Air Force, after which it went to Embraer in Brazil.