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A blue cross on white.
Also known as: X-ray flag, Code flag X-ray
Sometimes confused with: X pennant
The International Code of Signals flag for the letter X-ray, whose single-flag meaning is: Stop carrying out your intentions and watch for my signals.
Flown alone, signals: Stop carrying out your intentions and watch for my signals.
Contexts: Public information, Navigation
Commonly confused with the Romeo flag, which reverses the same colours and cross arrangement.
Contexts: Public information, Navigation
A white rectangular flag carrying a blue upright cross whose arms reach the edges.