Venez discuter de tout et de rien sur ce forum, dans les limites admissibles par notre règlement ! Modération laissée à la libre interprétation du Staff sans préavis et selon l'humeur du moment.Tout sujet à polémique est systématiquement supprimé (football, rugby, religion, politique ect). Note : Les messages de ce sous forum n’apparaissent pas dans les "Derniers Messages".
patrick123 a écrit : Bon je vais appeler à Cuers
Tu n'aurais pas émigré si loin dans le sud, j'aurais pu t'arranger ça.
Il est amusant de constater que tandis que les autos se mettent à consommer de la 100 LL, les avions commencent à carburer au SP 98...
Quelques images récentes de chez nous, avec un vrai photographe 
http://spotaero.blogspot.fr/2014/10/eal ... .html#more
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Et pour ceux qui en auraient l'occasion, une petite visite sympa chez des collègues, au "Musée des amis de la 5ème Escadre", à Orange
http://spotaero.blogspot.fr/2014/10/vis ... -5eme.html
http://spotaero.blogspot.fr/2014/10/eal ... .html#more
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Et pour ceux qui en auraient l'occasion, une petite visite sympa chez des collègues, au "Musée des amis de la 5ème Escadre", à Orange
http://spotaero.blogspot.fr/2014/10/vis ... -5eme.html
A propos de l'accident du "SpaceShipTwo", il semblerait que le déploiement du système de freinage aérodynamique à un moment inopportun soit à l'origine du crash (l'engin est articulé, et se "plie" au moment de rentrer dans l'atmosphère, pour réduire sa vitesse et se stabiliser).
From the NTSB (National Transportation Safety Board) :
"The vehicle... was dropped from its carrier aircraft, WhiteKnightTwo, at an altitude of almost 50,000ft at 10:07:19 US Pacific time.
The ship’s hybrid rocket motor was then ignited just a couple of seconds later, at 10:07:21.
Eight seconds after that (10:07:29), the vehicle was travelling just under the speed of sound (Mach 0.94). Two further seconds into the flight (10:07:31), it was travelling at Mach 1.02.
It is in that period between Mach 0.94 and Mach 1.02 that Michael Alsbury is seen on recovered cockpit video moving a lever to unlock the feathering system - an action that in the pilots’ checklist was not called for until the vehicle had reached Mach 1.4.
Investigators have previously described how the feathering system then deployed, apparently "uncommanded" by the pilots. It is probable that aerodynamic forces deployed the mechanism, resulting in the break-up of the ship. This is timed at 10:07:34 - the instant at which video and telemetry were lost.
One line of inquiry will be to ascertain whether the pilots were getting the correct information on their cockpit display throughout this critical period."
From the NTSB (National Transportation Safety Board) :
"The vehicle... was dropped from its carrier aircraft, WhiteKnightTwo, at an altitude of almost 50,000ft at 10:07:19 US Pacific time.
The ship’s hybrid rocket motor was then ignited just a couple of seconds later, at 10:07:21.
Eight seconds after that (10:07:29), the vehicle was travelling just under the speed of sound (Mach 0.94). Two further seconds into the flight (10:07:31), it was travelling at Mach 1.02.
It is in that period between Mach 0.94 and Mach 1.02 that Michael Alsbury is seen on recovered cockpit video moving a lever to unlock the feathering system - an action that in the pilots’ checklist was not called for until the vehicle had reached Mach 1.4.
Investigators have previously described how the feathering system then deployed, apparently "uncommanded" by the pilots. It is probable that aerodynamic forces deployed the mechanism, resulting in the break-up of the ship. This is timed at 10:07:34 - the instant at which video and telemetry were lost.
One line of inquiry will be to ascertain whether the pilots were getting the correct information on their cockpit display throughout this critical period."
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