Hi Nick,
http://www.topedge.com/alley/text/f14a/f14aloss.htmI think if you read the wiki, you will find that the losses are mostly from accidents.
As far as combat losses are concerned, I wasn't aware of any. However, after a few googles. I see there was one combat loss. Not a bad record.
http://en.m.wikipedia.org/wiki/Grumman_F-14_Tomcat"The U.S. Navy suffered its only F-14 loss from enemy action on 21 January 1991 when BuNo 161430, an F-14A upgraded to an F-14A+, from VF-103 was shot down by an SA-2 surface-to-air missile while on an escort mission near Al Asad airbase in Iraq. "
I can't claim to be an expert on what is acceptable as far as loss rate is concerned.
But considering the design dates from the Vietnam war, and was one of the first fighters to have variable geometry wings. I think the planes record needs to be taken in contex.
Also, consider the number of sorties. 700 aircraft operating off of as many as 11 of 13 active carriers (in the 1980's) (note: base on what i have read, of the 13 active carriers in the 80s only the FDR and Midway were to small to operate the F-14.)
Anyhow , I realize this is mainly a U.K. Site, so I hope my defense of the F-14, and the US Navy's safety and combat record will not be taken as combative or trolling.
Regards,
Frank
PS: I have been lurking on this site for a while. I should start posting some of my builds. They would have been a more positive introduction to the community.