4 ms·
True, though they could publish several zones and not announce which will be used. Though the transponders from various ships would eventually give that away.
by jccooper 6y ago
True, though they could publish several zones and not announce which will be used. Though the transponders from various ships would eventually give that away.
But even if it's not technically secret there's a big difference between a NOTAM and putting out press releases with specific locations, which they did this time.