naval apache helicopter?

hi, does anyone know if there was ever a planned version of the apache attack helicopter? it seems to be able to carry a good warload, has 2 engines for safety and decent speed for a helo. as the American Marines use the older twin engine Sea Cobra, has anyone ever made or designed or talked about a naval version of the Apache? it would seem easy to navilise it. if so, what weapons could it carry and would it use a version of the Longbow radar but with a longer range? a naval Apache seems a good idea but will it forever be just that? :diablo: