16 mai<\/a>, donne quelques informations sur la nouvelle.<\/p>\n<\/p>\n\t\u00abThe Air Force’s F-16 Block 40\/42 aircraft are experiencing cracked bulkheads that require repair or eventual replacement. While not a safety-of-flight concern, this issue, like the F-15 longeron saga, epitomizes the challenges of operating platforms for longer than their intended services lives while having to fly them at high tempo rates through 17 years of continual overseas deployments and wars. Already 63 of USAF’s 397 F-16 Block 40\/42s have been identified as having the cracks. Four F-16s were grounded initially and had their bulkheads replaced, officials at Hill AFB, Utah, told the Daily Report. The other 59 airframes have no flight restrictions imposed on them, but are being inspected every 10 flight hours to monitor the situation. USAF and Lockheed Martin, the F-16’s manufacturer, have a repair design in place that will be installed starting in May as a permanent fix for aircraft with very minor cracks. For those airframes with more pronounced cracks, the repair would only be a temporary fix, so USAF and Lockheed Martin have developed a new bulkhead that can withstand additional stresses. Installation of the repair design should be complete for all known cases by January 2009, while bulkhead replacements will continue through December 2009, the Hill officials said. By staying vigilant in monitoring the bulkheads, USAF hopes to catch future cracking early enough so that the repair will suffice and greatly reduce the need for replacing bulkheads. This point is critical since newer F-16 Block 50\/52s have the same bulkhead design as the F-16 Block 40\/42s and will be affected at some point in their service life with the cracks due to structural fatigue, according to the Hill officials.<\/em>\u00bb<\/p>\n<\/p>\n\tLe Daily Report<\/em> ne veut surtout pas dramatiser cette affaire, au contraire, peut-\u00eatre, de l’affaire des F-15. Le degr\u00e9 de gravit\u00e9 est certainement diff\u00e9rent, moins important dans le cas du F-16. Il semble \u00e9galement que l’USAF ait, pour l’instant, comme politique, de se faire la plus discr\u00e8te possible pour les questions pol\u00e9miques autour de sa crise de vieillissement. L’USAF n’esp\u00e8re plus grand’chose de cette administration et elle n’esp\u00e8re que peu de choses de l’actuel Congr\u00e8s, tout cela, en attendant les \u00e9lections de novembre 2008 avec la future administration et un nouveau Congr\u00e8s.<\/p>\n<\/p>\n\tLa r\u00e9alit\u00e9 reste \u00e9videmment que l’USAF est au coeur d’une crise gravissime et cette crise ne cesse de s’aggraver. Les probl\u00e8mes des F-16, pour l’instant mineurs, qui peuvent s’aggraver tr\u00e8s rapidement, confirment les tr\u00e8s difficiles conditions que conna\u00eet l’USAF, essentiellement pour deux raison: d’une part l’essentiel de sa flotte a\u00e9rienne de combat est d’une conception originelle remontant aux ann\u00e9es 1970, facteur important malgr\u00e9 les diff\u00e9rentes modernisations; d’autre part, cette flotte est soumise \u00e0 des conditions d’emploi extr\u00eamement pressantes, qui accroissent fortement le vieillissement.<\/p>\n<\/p>\n
<\/p>\n
\tMis en ligne le 17 mai 2008 \u00e0 22H18<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
Les probl\u00e8mes de l’USAF se poursuivent et s’accumulent, cela en toute logique, puisque la situation est due au vieillissement marqu\u00e9 de ses mat\u00e9riels, qu’il s’agit d’une crise structurelle irr\u00e9versible. Il y a les probl\u00e8mes des F-15, qui ne sont pas r\u00e9solus, pour lesquels seules des mesures transitoires et temporaires sont possibles. Il y a d\u00e9sormais… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[3228,3302,1015,41,7584],"class_list":["post-69903","post","type-post","status-publish","format-standard","hentry","category-bloc-notes","tag-crise","tag-f-15","tag-f-16","tag-usaf","tag-vieillissement"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/posts\/69903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/comments?post=69903"}],"version-history":[{"count":0,"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/posts\/69903\/revisions"}],"wp:attachment":[{"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/media?parent=69903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/categories?post=69903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/new.dedefensa.org\/index.php\/wp-json\/wp\/v2\/tags?post=69903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}