Tag Archives: 5-inch gun

Updated: Navy Researching Firing Mach 3 Guided Round from Standard Deck Guns

Updated: Navy Researching Firing Mach 3 Guided Round from Standard Deck Guns

USS Ross (DDG-71) test fires the MK45 5-inch lightweight gun on April 30, 2015. US Navy Photo

USS Ross (DDG-71) test fires the MK45 5-inch lightweight gun on April 30, 2015. US Navy Photo

CORRECTION: This post has been updated to include a new statement from Naval Sea Systems Command that changes one previously given to USNI News revising the planned speed of hyper velocity projectile fired from a Mk 45 naval gun from Mach 5 to Mach 3.

The U.S. Navy’s deck guns could take on new relevance if ongoing tests to fire a guided round at three times the speed of sound from their muzzles are successful, USNI News has learned. Read More