![Shipyard keel authentication ceremony](https://www.marinelog.com/wp-content/uploads/2021/07/NSC10KeelAuthenticationCeremony-300x225.jpg)
Ingalls authenticates NSC 10 keel
Huntington Ingalls Industries’ (NYSE: HII) reports that its Ingalls Shipbuilding division authenticated the keel of Legend-class national security cutter Calhoun (WMSL 759) in a ceremony held July 23. “This is a very