…won’t have sufficient performance margin to bring the first stage back. Though I’m not sure what she means by “Heavy satellites need a lot of extra speed at liftoff.”
6 thoughts on “SpaceX’s Next Launch”
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…won’t have sufficient performance margin to bring the first stage back. Though I’m not sure what she means by “Heavy satellites need a lot of extra speed at liftoff.”
Comments are closed.
That line has already been changed to “need more propellant to get to orbit”, so I guess what the original meant was just “I tried to phrase things colloquially and goofed a bit”.
Yes, I had a brief exchange with her on Twitter to clarify.
Falcon 9 Block 5? Why does Elon keep changing the bloody names. The version numbers worked just fine… First FT now he’s going Russian or something. If its Block 5, which was Block 4?
The thrust improvements I can understand. It’s kinda like the uprating of the Shuttle engines for the ISS or from the Naro to Angara. You push the engines further as you realize you have the margin to do it. Is that supposed to be Block 4?
I think I said this before but the improvements in the specs for the Merlin since its first version are just simply insane: 340 kN SL (Merlin 1A), 350 kN SL (Merlin 1C), 650 kN SL (Merlin 1D), 845 kN (Merlin 1D+), 939 kN (Merlin 1D++). Makes me wonder if they will need the Falcon 9 Heavy at all.
Oh come on. It’s fun to change naming systems during a production run.
Falcon 9.
Falcon 9 v1.1
Falcon 9 Full Thrust
Falcon 9 Block 5
Falcon 9 Mark 6
Falcon 9 Tranche 7
Falcon 9 VIII
Falcon 9 VIIIB
Falcon 9 VIIIB Mk 2
Falcon 9 VIIIB Mk 2 Model C
Falcon 9 IX
Falcon 9.10
Falcon 9/11
Evolved Falcon 9
Falcon 9: The Sequel
Falcon 9H
Falcon 9H.1
Falcon XP
Falcon M2019
Falcon 6000
Gyrfalcon
Gyrfalcon 2
Sooty Falcon (a real species which they won’t overlook for long)
939 kN sounds awesome – almost a match for the current version of the Ariane 5’s Vulcain 2 – but I can’t find any reference to this sea-level thrust for Merlin 1-D. Can you provide a link to your source?
The only exact reference I found to 939kN was in a comment at NASASpaceflight.com
Back to the silly names, here’s a picture of a sooty falcon. It’s grey with black tail feathers, pretty much like a Falcon 9 after landing. SpaceX marketing people should use the bird’s image for their re-used first stages.