R
Rick C
Guest
On Sunday, August 25, 2019 at 3:28:12 AM UTC-4, Bill Sloman wrote:
Not really. Maybe if you were going to Mars and I'm not sure even then. The rockets are what they are, simple, basic devices with their cost dominated by their size. The satellites have a lot of money poured into design and fabrication. I suppose if you continued to use the same design over and over it could become cheap. That's what Space X is doing. I think they even send up dozens per rocket. But then they are just giving us more comms options, not protecting us from the Soviet threat... I mean rogue nations.
> A useful satellite is likely to be heavier than the business end of an ICBM, so might need a bigger rocket.
Certainly it is one that has to work. ICBMs sit underground for decades with their main function just being "ready" in case they are needed... or actually *appearing* to be ready. If you need to actually launch one it has failed in its purpose.
The satellites have to reach orbit and maintain that orbit. So their lifespans tend to be shorter. Still, same order of magnitude. I wonder if we will need more sats than nukes.
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Rick C.
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On Sunday, August 25, 2019 at 3:42:40 PM UTC+10, Rick C wrote:
Putting up lots of satellites isn't a big problem these days. Are satellites any more expensive than ICBMs?
The rocket used to get out of the atmosphere is likely to be the dominant cost.
Not really. Maybe if you were going to Mars and I'm not sure even then. The rockets are what they are, simple, basic devices with their cost dominated by their size. The satellites have a lot of money poured into design and fabrication. I suppose if you continued to use the same design over and over it could become cheap. That's what Space X is doing. I think they even send up dozens per rocket. But then they are just giving us more comms options, not protecting us from the Soviet threat... I mean rogue nations.
> A useful satellite is likely to be heavier than the business end of an ICBM, so might need a bigger rocket.
Certainly it is one that has to work. ICBMs sit underground for decades with their main function just being "ready" in case they are needed... or actually *appearing* to be ready. If you need to actually launch one it has failed in its purpose.
The satellites have to reach orbit and maintain that orbit. So their lifespans tend to be shorter. Still, same order of magnitude. I wonder if we will need more sats than nukes.
--
Rick C.
-+-+ Get 1,000 miles of free Supercharging
-+-+ Tesla referral code - https://ts.la/richard11209