A 37 mm flare typically refers to a type of flare gun or flare cartridge that fires a 37 mm signal flare. These flares are used for a variety of purposes, including distress signaling at sea, during emergencies, or for specific military applications. The 37 mm size indicates the diameter of the projectile, which can deliver bright light or smoke signals when fired. They are often employed in maritime safety to indicate a vessel in distress, to signal for assistance, or to mark locations.
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