Lala the S-92 at Stornoway is good for over 250nm with no more prep than filling the tanks up that are on board (plus still having some payload left)... Is it the same for the Sea King?
Having never flown one.. Is 120KIAS the typical cruise speed of the Sea King? It's about 140-145 in the S-92 for reference.... Though long range speed is a little less.
Cheers
Lioncopter