"The United States' top fighter jet, the Lockheed Martin F-22, has recently required more than 30 hours of maintenance for every hour in the skies, pushing its hourly cost of flying to more than $44,000, a far higher figure than for the warplane it replaces, confidential Pentagon test results show."

F-22's Maintenance Demands Growing

By R. Jeffrey Smith
Washington Post Staff Writer
Friday, July 10, 2009

http://www.washingtonpost.com/wp-dyn/content/article/2009/07/09/AR2009070903020.html