Normal And Maximum Limits For Air Diving

MK 21 MOD 0 diving equipment, maximum working limit without Emergency Gas Supply (EGS) MK 20 MOD 0 equipment surface-supplied Maximum depth for standby scuba diver using a single cylinder Open-circuit scuba with single scuba bottle Open-circuit scuba, normal working limit Open-circuit scuba, maximum working limit with Commanding Officer's permission MK 21 MOD 1 (air) diving equipment with EGS, normal working limit MK 21 MOD 1 (air) diving equipment with EGS, maximum working limit, exceptional...

Diver Tender

6-9.10.1 Diver Tender Responsibilities. The tender is the surface member of the diving team who works closely with the diver on the bottom. At the start of a dive, the tender checks the diver's equipment and topside air supply for proper operation and dresses the diver. Once the diver is in the water, the tender constantly tends the lines to eliminate excess slack or tension (certain UWSH tasking may preclude this requirement, e.g., working in submarine ballast tanks, shaft lamination, dry...