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thisislife2yesterday at 6:01 PM6 repliesview on HN

Can you explain what makes Falcon9 / Starship special (or needed) to launch these satellites? China, India, EU, Japan etc. all have the capability to launch satellites. So why is a Falcon9 / Starship a particular requirement?


Replies

mooredsyesterday at 6:05 PM

Cost, maybe? It is one thing to ship up a valuable satellite (which they all can do). But to ship up 1000s of satellites (and keep doing it in perpetuity, because IIRC they don't have a long lifetime[0]) gets expensive.

0: Looks like 5 years. https://www.space.com/spacex-starlink-satellites.html

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maxglutetoday at 2:35 AM

It's more tempo, less cost, resuable has faster turn around time, so more launch per unit of time. Long March 5 is ~$3000/kg, or ballpark enough to F9/kg, but disposables can't launch every few days.

samrusyesterday at 6:03 PM

Has to be the cost. A reusable launch vehicle is such a ridiculously better value proposition that it creates a discrete evolution. Some things just arent feasible to do without them

kolinkotoday at 12:32 AM

Reusability. Even if money were not an issue, other nations need to build a new rocket for every launch, and it's extremely hard/impossible to catch up.

tartuffe78yesterday at 6:03 PM

Starlink is apparently 65% of all active satellites, it would be very expensive to emulate that without super efficient launching capabilities.

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teklayesterday at 6:08 PM

None of those countries (well probably except China) have any significant launch capacity to deploy constellations

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