<prompt> Translate the following text to EnglishKwa mujibu wa Air Force, wakati F-22 ilianza kuzalishwa mwishoni mwa mwaka 2001, ilikuwa na uwezo wa kuonyesha karibu saa mbili za kuruka kati ya shughuli za matengenezo.  <response>: The Air Force estimated that in late 2001, when the F-22 entered limited production, it should have been able to demonstrate almost 2 flying hours between maintenance actions. 