Accidentally deleted the previous post so i’'ll point it out here. Your bug report uses sources only referring to the detector itself.
Now I don’t know how familiar you are with sensors, or the english language for that matter, but this means the FOV of the detector itself is roughly 11x8 degrees. It is established the sensor can rotate within its housing as visible on the IRST itself, with visible pivots
and your bug report has already been responded to demonstrating you are wrong.
63°x40° is the default scan pattern in game. It is not the instantons FoV of the sensor. The FoV of the sensor is the little green square that moves around inside the scan pattern.
There is already a report submitted for PIRATE being able to scan the entire field of regard in MTT mode IRL.
If anything, the FOV of the sensor itself is too low and that report would actually constitute a buff lol. Current AngleHalfSens in the datamine is two degrees and that change would exponentially improve the scan rate.
Seems possible, expecially considering that, while we do not know what the scan zone of the PIRATE is in that example, the targets are updated roughly once a second