Characteristics
Winston S. Churchill sets the final physical pattern for all subsequent Flight IIA ships by mounting the Mk. 45 mod 4 – 5" (127 mm)/62 caliber gun, a major improvement over the previous Mk. 45 mod 3 – 5 in (127 mm)/54 caliber gun—the longer barrel allows more complete combustion of the propellant, reducing barrel flare and improving projectile velocity and firepower against ship and shore targets. Additionally, the Mk. 45 mod 4 uses a modified gunhouse, designed to reduce its radar signature.
Read more about this topic: USS Winston S. Churchill (DDG-81)