If you look at the specs ,the F14 still exceeds the newer aircraft in some areas . Sadly one spec was maintenance hours per flight hour , and fuel burn .
As a kid at the Miramar air show , A top gun pilot would give a speech about the F-14 " If you left in full after burner , to the north east -you would find yourself out of fuel at 45,000 feet over Denver in 27 minutes " .
We never do that as the engines would be trashed .
http://www.globalsecurity.org/milita...f-14-specs.htm