[quote][b][url=/v3/forum/%C3%A9tats-unis-31/topic/f-35-news-195/?post=44812#post-44812]d9pouces[/url] a dit le 19/11/2009 à 09:56 :[/b]

http://springboarder.blogspot.com/2009/11/mv-22-f-35b-systems-engineering-fail.html

[quote]DARPA is soliciting innovative research proposals in the area of Thermal Management Systems (TMS) for aircraft landing decks. The deployment of the MV-22 Osprey has resulted in ship flight deck buckling that has been attributed to the excessive heat impact from engine exhaust plumes. Navy studies have indicated that repeated deck buckling will likely cause deck failure before planned ship life. With the upcoming deployment of the F-35B Short Take Off and Vertical Landing (STOVL) Joint Strike Fighter (JSF), it is anticipated that the engine exhaust plumes may have a more severe thermo-mechanical impact on the non-skid surface and flight deck structure of ships. Currently, there are no available strategies to mitigate deck buckling and thermal-mechanical deck failure other than heavy structural modifications. The goal of this effort is to exploit thermal management technologies that incorporate a thermally and functionally stable non-skid surface which meets Navy requirements for application, safety, and performance. Eligible technologies should consist of an integrated Thermal Management System (TMS) that mitigates the thermo-mechanical structural impact of the F-35B engine exhaust plumes. It is anticipated that the integrated TMS will be implemented on Navy Landing Helicopter Dock (LHD) 1 and Landing Helicopter Assault (LHA) 6 Class amphibious assault ships.[/quote]
En résumé : c'est un appel d'offre pour trouver un système de protection pour les ponts des bâtiments devant accueillir les V-22 et les F-35B : à cause de la température en sortie de turbine du V-22, les ponts sont abimés à chaque décollage ou appontage. On imagine facilement que le problème sera pire avec le F-35B… Accessoirement, on se rend compte que ce problème n'était pas prévu, et que les bâtiments en cours de production ne sont pas prêts…[/quote]