There have been several F-16 successful USAF deadstick landings, and a number of losses due to engine failures - but these almost always have occurred over land. There have also been plenty of precautionary engine shutdowns of F-18s, a number over water - luckily, the other engine almost always was working. All in all, it's nice to have options, particularly when your jet costs $150M.
Last edited by Maus92; 10th Feb 2014 at 13:31.