S-61 in the SAR role was just a ordinary oil and gas cab with a winch strapped on at the beginning. As the years went on mods and avionics were added to make it a good alround SAR aircraft, but it was never purpose built. Best for me was the Sea King. At least it had a hot water boilerto make tea coffee, pot noodles on those long slogs out to the west, something sadly missing from the S-61 and it's replacement, the S-92.