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SpaceX Eyeing June 4 Window For Falcon 9 Launch
PeterBrett writes "SpaceX has finally announced the window for its first much-awaited Falcon 9 launch from Space Launch Complex 40 at Cape Canaveral. Subject to good weather, the company plans to launch either on Friday, June 4, or Saturday, June 5, with the window opening at 12:00 UTC on each day. As usual, SpaceX will be broadcasting the launch live from its website."
Their website states 1500 UTC too. So its one of those rare occasions where there is an error in the summary.
Deze sig is in 't Nederlands geschreven.
If you compare the Falcon 9 to other rockets you can't fail to see that this thing is quire cleverly designed in a very straight way.
It has only two stages and uses Kerosine/LOX in both stages. Kerosine is much denser than LH and makes for smaller tanks and easier handling. Both stages are essentially identical, with the second stage much shorter but using the same diametre tanks and domes and the same tools for fabrication. Both stages use the very same engines, too. 9 on the first stage, one in the second stage. This allows them to be build assembly-line style, much cheaper than to build several differently sized engines in small numbers.
The Falcon 9 Heavy will add to this two boosters consisting of just two first stages strapped to the center one. This thing will still use the same tools and the same tanks and domes and engines (28 of them) for all stages and for the boosters. Compare this to other similar launchers which often use two (or even three) different engines and tanks for their stages plus solid boosters, all expensively build in small numbers.