So 120 nm is not much off an hour's flight and the aircraft burns circa 1000lb/hr with perhaps an MLA of 100lbs - it doesn't leave you much time on station does it? And the ship is bound to be steaming away from land!
With 20 kts across the disc and only 1.5 hours of fuel left, even a Sea King would be OEI in the hover at that temp
Mark six - did you mean max OGE hover at 5460kg or max OEI OGE hover?