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gaetanomarano
Guest
<font color="yellow">"...crew rotation missions per year to the ISS using a 3 man CEV, 3 cargo missions per year to the ISS using a cargo CEV, completion of the ISS assembly, Space Shuttle operations until retirement..."<br /></font><br /><br />also without last Shuttle's flights costs, the price-per-moon-mission don't change so much (may be around $6 billion each... but... add 10+ years inflation, cost grow, etc... it will be over ten billion each...)<br /><br />costs include spaceflights-related activities... but, if the ****ONLY**** "activity" will be "moon" they must be shared only with moon missions' costs<br /><br />about ISS' flights of CEV... I've posted my opinion many times in many threads... but, in brief...<br /><br />the ISS' crew number is very poor and is shared with Europe and Russia<br /><br />Russia (and also China if will join the ISS' project) will use their VERY CHEAP vehicles for their astronauts (they can't spend $250+ billion per "seat"!)<br /><br />ESA may "wish" to use the CEV but it will be TOO expensive for its 2 billion euro budget... so it will continue to use the Soyuz (or CEV... but only if NASA will give them some "seats" as a gift...)<br /><br />use the CEV as cargo will be PURE science fiction or PURE MADNESS since a 2.4 tons payload pressurized-Progress costs ONLY $22 million, while, a 3.5 tons pressurized-cargoCEV will cost the SAME price of a crewed CEV launch: <font color="yellow">$1+ billion each... 50 TIMES the price of ONE Progress LAUNCH!!!</font><br /><br />also, with a six-seats CEV, only ONE launch per year will be sufficient for all american ISS' astronauts<br /><br />TOTAL orbital CEV flights: one dozen of ISS' crewed CEV launch in 2015-2025... or LESS than HALF-DOZEN if USA will withdraw from ISS in 2016...<br /><br />