Which NWC chock is approved for all shipboard aircraft except H-2 helicopters?

The NWC-4 chock is specifically designed and approved for use with all shipboard aircraft except H-2 helicopters. This chock type is engineered to meet the unique needs of various aircraft involved in naval operations, ensuring stability and safety during mooring and operations on deck.

The NWC-4’s omission of H-2 helicopters from its approved use likely reflects specific requirements or considerations pertaining to those aircraft, such as size, weight, or design features that may necessitate a different type of chock for effective securing.

Understanding the distinct applications and approvals of the various chock types is crucial for ensuring safety and operational efficiency on naval vessels, as each chock type meets different specifications that align with the characteristics of the aircraft it is designed to support. Such knowledge is vital for personnel engaged in the handling and operations of aircraft onboard ships.