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Speriamjo che lo facciano vedere su NASA tv...
Purtroppo impegni personali mi hanno impedito di vedere la diretta. Qualcuno l'ha vista e ha qualche punto saliente da sottolineare?Il final report è decisamente troppo lungo per una lettura approfondita...
Tre considerazioni veloci:1) Ares 1 ha le ore (se non i minuti) contati....
2) Con buona pace di qualsiasi altra considerazione lo Shuttle potrebbe restare in servizio fino al 2015.
3) Orion è "borderline", resta solo se resta il requisito di missioni manned sulla Luna.
Questo proprio no, Orion non è messo in discussione nel rapporto, e qualunque scelta si faccia fra gli scenari ipotizzati Orion è presente, non solo in quelli lunari.Come è già stato detto è l'unico punto fisso del programma...
Nel caso di rinuncia alle missioni lunari e successo di uno dei COTS, come spera la NASA di giustifcare ai contribuenti la coesistenza di due veicoli spaziali manned entrambi utili solo in LEO?
A pagina 16 c'e' un "SUMMARY OF PRINCIPAL FINDINGS". Da sottolineare alcune cose:[...]NASA should drop development of the Ares I rocket. The panel said the rocket was the right selection when the Constellation architecture was developed, that any technical problems could be surmounted, but that times have change.
Allora, forse, Ares I non era un completo disastro tecnologico come sostenuto dai suoi critici.
In realtà esistono tre opzioni:
Quattro con l'eventualità che nulla cambi.
In realtà esistono tre opzioni:Option 1: Stretches the current flight schedule for the six remaining missions through Financial Year (FY) 2011, with Discovery retiring after STS-131 in May 2010, ahead of her September 2010 OMDP deadline.She would then become a spares donor to Atlantis and Endeavour, as they fly out the three remaining flights, STS-132 (Atlantis), STS-133 (Endeavour), and STS-134 (Atlantis), as the program ends in September 2011.Option 2: This extension option is classed as the favorite by numerous sources, with two additional flights taking the shuttle program into 2012. Again, Discovery retires first after she’s flown as STS-131, before Atlantis and Endeavour take up the baton to complete the manifest.With Atlantis’ OMDP deadline in January 2012, she finds herself mothballed after STS-134 in September 2011, with Endeavour finding herself tasked with two additional flights in February and August 2012. For the final flight, Atlantis may find herself “half processed” to become the Launch On Need (LON) support vehicle for Endeavour.The two additional flights require little in the way of additional assets via the Michoud Assembly Facility (MAF), as ET-122 – a “spare” tank at the New Orleans facility – and ET-139 are utilized by Endeavour.ET-139 and ET-140 (previously known as ET-140 and ET-141 respectively) are part built “get-ahead” tanks, to be used as a buffer in the event an extended extension called for the restart of tank production. Option 3: This is where ET-140 and four additional tanks would be required (three for flight, one for LON), as Discovery takes up the lead role in this particular extension scenario.The plan revolves around Discovery returning from the upcoming STS-128 and then undertaking an Orbiter Major Modification (OMM) period at KSC – which eliminates her OMDP deadline – before being tasked with a return to flight in 2011 with STS-134.Discovery then receives another six flights, flying twice a year through to September 2014, with both Atlantis and Endeavour are retired in 2011 – bar Endeavour’s part-processed use as the LON support for Discovery’s new flights.
emh ... faustod hai un po' pasticciato colle citazioni...