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#1 Yesterday 08:35:34
- tahanson43206
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- Registered: 2018-04-27
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Slingshot Probe Launcher - rotating mass Launcher
This topic is inspired by reports by Void, about a proposal for a launch system based upon rotation of masses about a common center.
The proposed system has potential capability to accelerate a sensor package to the velocity of objects transiting the Solar system at interstellar velocities.
There are many practical challenges to overcome to build, deploy, operate and maintain such a system.
This topic is available for serious study or this launch system for possible use in the near future.
(th)
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#2 Yesterday 08:36:21
- tahanson43206
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- Registered: 2018-04-27
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Re: Slingshot Probe Launcher - rotating mass Launcher
This post is reserved for an index to posts that may be contributed by NewMars members.
Index:
Post #3: https://newmars.com/forums/viewtopic.ph … 02#p238802
We open this new topic with a vision provided by Void.
(th)
Future posts might provide mathematics for design of the system, for management of the simultaneous launches, and for recovery of the whirling tether after the payloads are released.
The tethers will be traveling at enormous velocity, and they will have great mass due to their length, so finding a way to gently bring them to rest will take talent and skill
One option is to keep the acceleration engines and use them to gently perform deceleration.
(th)
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#3 Yesterday 09:13:17
- Void
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- Registered: 2011-12-29
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Re: Slingshot Probe Launcher - rotating mass Launcher
It seems that you may allow some posting from me on this. So, I will.
Here is some reference materials from another topic: https://newmars.com/forums/viewtopic.ph … 70#p238770
Quote:
This spin and fling method is already understood:
Electric Rockets would spin it up and at an appointed moment the tether would be cut. The "Outie" would be flung to a higher orbit in the sun's gravity well and the "Innie" would be flung to a lower orbit in the sun's gravity well.
So, far the "outie" is just a counterweight that we simply fling away and might not have any further use for.
But what if the "outie" was an explosive charge packed with water ice?
So, lets change the "outie" into a cannon, and modify the 'inie" to have "Pusher Plate" characteristics like for a nuclear Orion.
But for your needs (th) I would like to try something else: 
So, now your Outie and Innie have their own propulsion methods. I imagined that it could be Alice for both, as Ceres will have water ice for it and also Aluminum for Nano-Powder.
The assembly would be spun up using electric rockets for efficiency. Possibly using either Magdrive or Neumann Drive.
Probably because Ceres has attenuated sunlight, orbital power stations would beam concentrated power to the two electric thruster systems.
When the line (Tether) was cut in two places, the Outie would fly to a higher solar orbit, and the Innie would fly to a lower solar orbit.
The two electric rocket systems might stay in place still spinning, and possibly be reused by some method.
Where the Outie and Innie, are depicted as having one thruster body they could have multiples of them so that several firings could be done over the course of a mission.
In my desires the Innie would be made as much as possible of organic materials for structure.
The Outie on the other had may be made as much as possible of metals that might be wanted in the outer solar system.
Or as you seem t desire (th), a space probe to the outer solar system perhaps.
I hope this is useful to you.
Ending Pending 
Last edited by Void (Yesterday 09:37:58)
Is it possible that the root of political science claims is to produce white collar jobs for people who paid for an education and do not want a real job?
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#4 Yesterday 18:13:24
- Void
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- Registered: 2011-12-29
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Re: Slingshot Probe Launcher - rotating mass Launcher
I have another device/method, that if it can be practical, would eliminate the electric rockets and nte need thrusters for the spin-up.
It would have three major parts:
1) Dumbbell (Possibly I am)
2) Innie
3) Outie.
This becomes very hard to visualize. In reality it will have to work in orbit of some mass(s) in space, but to simplify it I will describe it as if in a universe of it's own.
https://en.wikipedia.org/wiki/Dumbbell
https://www.menshealth.com/fitness/g415 … dumbbells/
Image Quote: 
This would be the foundation of an orbital Spin-Launch method.
But if we spin it in its major axis, the shaft we want to avoid gyroscopic tumbling.
So, my understanding is that if a Disk spins in space, it will not tumble. My understanding is that a cylinder like an O'Neil Cylinder mus be paired in order to deal with the tumble.
So, the two disks need to be the dominant character and the shaft which is a cylinder needs to be a recessive trait. No guarantees this is just a best guess.
So, this is to be a substitute foundation for a spin-launch system where it does what a planet such as Earth does.
https://www.spinlaunch.com/
Image Quote: 
We would then use the shaft of the "Dumbbell" to be the shaft of the spin-launch device.
Interestingly the two disks could perhaps house human habitats.
The dumbbell can spin in either direction and the Innie/Outie in the other direction.
And so then you can release the Outie and the Innie, but then are left with a dumbbell that is spinning already.
If I could conjure up a new Outie and Inni, and have the tethers for it, then I need a means to attach them while it is still spnning.
So, the "Spin Collar" can be set to zero spin even if the "Dumbbell" retains spin from the last launch.
You may attach a stet of Outie and Innie.
Then for this launch you begin applying spin force in the opposite direction of the previous launch, perhaps spinning the "Dumbbell" down to zero spin or full inverse spin.
Then you launch.
Rinse and repeat.
Now when in orbit of the Earth, I believe that in one spin direction the outie goes underhand and the innie goes overhand as thows.
Then in the other direction the innie goes underhand and the outie overhand for the spin.
I may have to review the above, but I think it may be correct.
If it can be done, then indeed for every action there is a reaction, but in this case, we keep the propellant as the Dumbbell and reuse.
I need a serious break. Goodnight.
Ending Pending
Last edited by Void (Yesterday 19:11:46)
Is it possible that the root of political science claims is to produce white collar jobs for people who paid for an education and do not want a real job?
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