IRL (and I know that Lock-On is not) there are NO H-47's landing on Aircraft Carriers! The H-46 used by the Marines for medium lift capacity and used by the Navy for SAR, land on aircraft carriers. You wont find Marine H-46's on CVN's, the only helos that typically land on CVN's are MH-53's, MH-60's and H-3's. CH-53's CH-46's (soon to be replaced by V-22's) AH-1W's and UH-1N's are found on amphibious carriers LHD's and LHA's.
IMO I think ED should remove the H-47's ability to land on ships. It falls along the same lines as the argument: the F-15 has an arrestor hook, why cant we land on ships?
Here is a reference for those confused about the difference between S**thooks and phrogs
http://www.globalsecurity.org/military/systems/aircraft/ch-467.htm