Editing Lockheed Martin F-22 Raptor (section)

===Maintenance===
Each F-22 requires a three-week packaged maintenance plan (PMP) every 300 flight hours.<ref name="tyndalltraining">Camelo, Maj. Wilson. [https://www.af.mil/News/Article-Display/Article/486936/tyndall-afb-takes-f-22-pilot-training-to-next-level/ "Tyndall AFB takes F-22 pilot training to next level".] U.S. Air Force, 30 July 2014. Archived from [https://www.af.mil/News/Article-Display/Article/486936/tyndall-afb-takes-f-22-pilot-training-to-next-level/ original.]</ref> Its stealth coatings were designed to be more robust and weather-resistant than those of earlier stealth aircraft,<ref name="avweek_20070107" /> yet early coatings failed against rain and moisture when F-22s were initially posted to [[Guam]] in 2009.<ref>Holmes, Erik. [https://archive.today/20120730194046/http://www.airforcetimes.com/news/2009/10/airforce_F22_100409w/ "F-22 problems linked to rain in Guam."] ''Air Force Times'', 5 October 2009. Retrieved 9 May 2010.</ref> Stealth measures account for almost one third of maintenance, with coatings being particularly demanding.<ref>{{cite news |author=Seligman, Lara |url=https://aviationweek.com/air-combat-safety/us-air-force-tackles-repair-f-22-stealth-coating |title=U.S. Air Force Tackles Repair To F-22 Stealth Coating |work=Aviation Week |date=30 November 2016 |access-date=19 March 2019 |archive-url=https://web.archive.org/web/20180720165014/http://aviationweek.com/air-combat-safety/us-air-force-tackles-repair-f-22-stealth-coating |archive-date=20 July 2018 |url-status=live}}</ref><ref name="raptorroadmap2019"/> F-22 depot maintenance is performed at Ogden Air Logistics Complex at [[Hill Air Force Base|Hill AFB]], Utah; considerable care is taken during maintenance due to the small fleet size and limited attrition reserve.<ref>[https://www.wpafb.af.mil/News/story/id/123350437/ "Air Force to consolidate F-22 depot maintenance at Hill".]  U.S. Air Force, 29 May 2013. Retrieved 3 July 2014.</ref>

F-22s were available for missions 63% of the time on average in 2015, up from 40% when it was introduced in 2005. Maintenance hours per flight hour was also improved from 30 early on to 10.5 by 2009, lower than the requirement of 12; man-hours per flight hour was 43 in 2014. When introduced, the F-22 had a Mean Time Between Maintenance (MTBM) of 1.7 hours, short of the required 3.0; this rose to 3.2 hours in 2012.<ref name="hatch.senate.gov"/><ref name=availability_63%/> By fiscal year 2015, the cost per flight hour was $59,116, while the user reimbursement rate was approximately US$35,000 (~${{Format price|{{Inflation|index=US-GDP|value=35000|start_year=2019}}}} in {{Inflation/year|US-GDP}}) per flight hour in 2019.<ref name="F22cost2019"/><ref>{{cite web |author=Drew, James |url=https://www.flightglobal.com/news/articles/f-35a-cost-and-readiness-data-improves-in-2015-as-fl-421499/ |title=F-35A cost and readiness data improves in 2015 as fleet grows |work=FlightGlobal |date=2 February 2015 |access-date=4 March 2019 |archive-url=https://web.archive.org/web/20190306043626/https://www.flightglobal.com/news/articles/f-35a-cost-and-readiness-data-improves-in-2015-as-fl-421499/ |archive-date=6 March 2019 |url-status=live}}</ref>