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Scuba gas planning is the aspect of dive planning which deals with the calculation or estimation of the amounts and mixtures of gases to be used for a planned dive profile, and can be critical to the safety of the dive. The scuba diver by definition is independent of surface supply and, in general, must carry all gas needed for the dive, though ...
A fourth, logistical reason, is availability of cylinders of suitable capacity. The largest capacity cylinders in general use for scuba diving are 18 litre 232 bar steel cylinders, and they are relatively uncommon. Multiple cylinders may be chosen simply to provide sufficient capacity for the planned profile and specific gas.
Buddy checks may be extended to include aspects of dive planning, to ensure that the divers are agreed on the intended activity and contingency plans. When larger groups and more complex dive plans are involved this would be considered part of the dive briefing. Risk assessment update; Emergency plans; Contingency plans
The dive plan must be understood and followed, and contingency plans should be available for the foreseeable deviations from the plan. [30] DIR divers must be completely dedicated to the buddy system, primarily in the interest of safety, but also because failure to follow the expected procedures is likely to compromise the dive plan.
Cave diving – Diving in water-filled caves; Dive planning – The process of planning an underwater diving operation; Half + 15 bar – Rule of thumb for scuba gas management; Penetration diving – Diving under a physical barrier to a direct vertical ascent to the surface; Scuba gas management – Logistical aspects of scuba breathing gas
Rebreather diver with bailout and decompression cylinders. Scuba gas management is the aspect of scuba diving which includes the gas planning, blending, filling, analysing, marking, storage, and transportation of gas cylinders for a dive, the monitoring and switching of breathing gases during a dive, efficient and correct use of the gas, and the provision of emergency gas to another member of ...
Professional diving teams are required to have emergency plans in place during all operations, and recreational divers are also expected to do so, to the extent appropriate to the dive plan. An alternative meaning, in the context of medicine, is a medical emergency which was initiated while diving, which may also be described as a diving ...
[14] [13] In recreational diving, the diver is free to plan or not, and to change the plan on whim, but technical diving certification agencies generally encourage divers to "plan the dive and dive the plan", as this is considered good practice for safety, and is the same strategy used by professionals. [42] [74]