Remora
Guest
Hi Andre!
All kidding aside. Food for thought. In the Cdn Military ships divers must be tethered. Clearance Divers do not ( even when not on hose gear). The logic is as you have explained; in conditions of low vis ships divers are able to search/work on the ship's hull and not worry about their buddy. For the Clearance divers it is relative to the nature of the work that they could be performing. Our national police force the RCMP (Can't figure out how the hat keeps it shape underwater )as of today do not dive tethered ( as a norm) They have had a fatality recently (drug search on a hull) that could have been avoided if the dive team was tethered. There may be a resulting move afoot to a tethered requirement.
In the above cases these are professionals that work in water regardless of conditions. I would submit that unless absolutley necessary (extreme low vis)would rec divers want to adopt this practice. It would require training above the normal course structure (much like the ice spec) to become a viable aid rather than a hindrance/danger. I suppose if 6" vis is all the vis you have then a divers gotta do what a divers gotta do!
All kidding aside. Food for thought. In the Cdn Military ships divers must be tethered. Clearance Divers do not ( even when not on hose gear). The logic is as you have explained; in conditions of low vis ships divers are able to search/work on the ship's hull and not worry about their buddy. For the Clearance divers it is relative to the nature of the work that they could be performing. Our national police force the RCMP (Can't figure out how the hat keeps it shape underwater )as of today do not dive tethered ( as a norm) They have had a fatality recently (drug search on a hull) that could have been avoided if the dive team was tethered. There may be a resulting move afoot to a tethered requirement.
In the above cases these are professionals that work in water regardless of conditions. I would submit that unless absolutley necessary (extreme low vis)would rec divers want to adopt this practice. It would require training above the normal course structure (much like the ice spec) to become a viable aid rather than a hindrance/danger. I suppose if 6" vis is all the vis you have then a divers gotta do what a divers gotta do!