https://rotor.org/u-s-navy-awards-sikorsky-contract-to-build-9-more-ch-53k-heavy-left-helicopters-in-ct/ The global leader in leveraging, innovating, advocating, and expanding vertical flight Tue, 29 Jun 2021 04:09:56 +0000 hourly 1 https://wordpress.org/?v=6.2.2