Missing the Point
But Troglo and froggy, surely the whole point of large, powerful, dedicated SAR machines such as the EC225 or S92 is that they don't have to land on the decks to do their job, they can just winch medevacs from the deck from the hover. We're only talking about emergency flights here, so fire fighting cover isn't important and modern SAR aircraft don't require to use the platform or flight-deck lighting as they carry adequate floodlighting capability on board and additionally have FLIR. After all they don't worry about D values, lighting or fire fighting facilities when carrying out rescues from trawlers, supply boats or standby boats in Europe. With the range achievable with either EC225 or S92 they should be able to cover most of the Nigerian oil patch with one in Lagos and one in either Port harcourt or Warri/Escravos.