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Spin Launch goes around in circles with Ka'u
#61
your myopic viewpoint noted. now lets hear from the other racists here when they wake up LATEer bc not have to work 'e.out
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#62
now lets hear from the other racists here

I said nothing about "race", and race has nothing to do with being against development.
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#63
now lets hear from the other racists here

No one said anything about race.
Except you.
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#64
elepaio.. your myopic viewpoint is noted (your reference was to yourself, right?).. as is your inability to engage in a mature conversation. What I wonder is, do you do this with all your relations? Is this what small talk around the dinner table is like where you stay? Is this how you hang with your buddies? Or, per chance, are you just sharing this side of yourself with us? Whatever, I think you might, if you look real close, notice a trend. One that suggest you'd be better off with a different approach if you're hoping for engagement here.
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#65
Please... Hawaiians/locals I work with in Hilo have the same opinions about Ka'u. And Puna, for that matter.
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#66
(09-27-2022, 09:50 AM)TomK Wrote: yet you won't explain how that can possibly be true.


https://youtu.be/JAczd3mt3X0


And if the island never sees a dime from SpinLaunch, it's nothing to do with the company, it will be due to the attitude of a small group of people here who want progress stopped and not allow new opportunities for Big Island folk at a time when they are desperately needed.
Ok, So there are a bunch of issues Tom.
Doing some Delta V calculations on a Lox Engine for the second stage would need to be close to 2800Kg wet. (2500Kg of fuel, 200Kg Payload, and 100Kg for Engine, turbo pump, comms, guidance etc)
The centripetal forces (about 10,000G) will create a load of 32,000,000Kg of force At the end of each arm.
They aren't very clear of what magical device they plan on using to hold that kind of force that could be released in less than a millisecond, But if they plan on using explosive bolts they would be gargantuan. A 4.5" bolt will only hold 566,000KG. Explosive bolts of that size may damage the payload.
They conveniently leave out where they are going to dump the counterweight going 2Km/s at the same time the payload is launched. a 2800Kg mass or 1.3Tons kinetic equiv of TNT in the sand ought to make a thud.
Can they make a vacuum chamber that will hold stable at a few mT? maybe.
Can they detonate all the explosive bolts within a few ms. sure.
Will the payload survive the launch? doubtful.
Im kinda looking forward to the rapid unscheduled demolition it will be entertaining.

I guess when you say "small group of people" it must be  "racist" codeword for Native Hawaiian?
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#67
Kander - the issues you bring up are discussed in detail in the video links I provided. What disappoints me is that you haven't addressed your claims that SpinLaunch is a fraud, that the people that work for them are no better than high-school physics students, and that a lackluster video in any way invalidates the feasibility of the project.

And finally, sorry, saying "a small group of people" is not racist and is not a keyword for anything, it says exactly what I meant. If you want to interpret it in your own way, then fine, but you are wrong.
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#68
Welcome back K .. kudos to Mr. Rob too..I love how they flailing upon facts-in- face presentation. Cannot deny .. o wrong thread ? ..not really.
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#69
(09-29-2022, 08:29 AM)elepaio pid= Wrote:I love how they flailing upon facts-in- face presentation.


Huh? What?
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#70
they flailing upon facts-in- face presentation

Yeah, that's racism for you.
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