Which distance is correctly matched with its weapon's DANGER CLOSE value?

• A. Artillery - 600 meters
• B. Naval 5 in - 1000 meters
• C. Mortar - 750 meters
• D. 16 in - 600 meters

Answer: (A)

Danger Close is the distance at which weapon effects (blast and fragmentation) endangering nearby personnel must be taken into account and safety measures heightened. For artillery, a standard Danger Close distance used in many training references is about 600 meters. That makes the pairing with artillery at 600 meters the best match because it aligns with the typical risk radius commanders plan for when friendly troops are near the impact area.

The other pairings don’t fit the commonly taught values. Naval guns like a 5-inch or a much larger 16-inch weapon produce larger blasts and wider fragmentation patterns, so their Danger Close distances are generally larger than 600 meters. Mortar Danger Close numbers vary with caliber and fuze, but 750 meters isn’t the standard value cited in common practice.