I was wondering the same thing. Seems to me that C-130's are used in some roles that might be similar to what the Navy needs (e.g. maritime search and rescue work with the U. S. Coast Guard, and weather recon with the Air Force). So couldn't the C-130 be adapted for Navy use?
bump
And it's STILL a 45+ year old design. There's much better, more reliable materials, engines, and methods of construction out there that we should be using.