[PAR35]

yes, but the Fletcher class had 5 5inch guns instead of a single pop gun.

[NorthMountain]

Fletcher class didn't have a helo pad or hangar. You might be missing the point, though.

They're calling this thing a corvette. It has the displacement of a WWII destroyer. Today's Arleigh Burke class destroyers have the displacement of a WWII light cruiser (8000-10000 tons). Tomorrow's Zumwalt class destroyers have the displacement of a WWII heavy cruiser. There has been some serious hull inflation going on ... comparing armament isn't as simple as comparing bore diameter.