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Old April 26th, 2017, 06:44 AM   #121
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your section cut shows only a narrow passage inside the tubes for people. Anyway, people are too close to axis of rotation. You can´t have a slow roll at that diameter from the axis to get 1g and even worse, people will feel dizzy because of coriolis effect.

There will be a tube extended to make the connection in space. I only claimed ½ G to get used to Mars conditions. 0,2 G could also be better than no G.


I have the radius 7500 mm so the G when known will the v ( rotational speed ) easy to calculate.


https://en.wikipedia.org/wiki/Centripetal_force


On each rotation the distance the sleeper travels is 47 meters.


0.2 Gs is 1,962 m/s^2 => so the F is 8.15 N if the astronaut is 80 kg.


So the equation gives us rotational speed of 0.87 m/s...which means => 0.87x60 = 52.2 meters in a minute...just one round per minute...hardly making anyone dizzy I would say.


For the sleeping problems I would recomment melatonin in capsules for each.
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Old April 26th, 2017, 12:00 PM   #122
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Here a NASA lady explains that 800 kW is enough for a Mars mission; https://www.youtube.com/watch?v=W8SUrR8Rb7o


My craft has about that in Mars and much more on Earth distance from the Sun.
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Old April 26th, 2017, 01:34 PM   #123
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Here the interconnecting tube explained and frontal area reduction compared to space shuttle.

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Old April 26th, 2017, 05:45 PM   #124
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No way the radius of rotation to where astronauts sleep is 7 meters, looking at your cross section.

Also, it seems you are not understanding the part about Coriolis force.

The problem is the gravity gradient created between upper and lower body parts when the axis of rotation is too close to the surface where the astrout stands.
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Old April 26th, 2017, 06:02 PM   #125
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Here a NASA lady explains that 800 kW is enough for a Mars mission; https://www.youtube.com/watch?v=W8SUrR8Rb7o


My craft has about that in Mars and much more on Earth distance from the Sun.
What time in the video?
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Old April 26th, 2017, 07:01 PM   #126
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What time in the video?
09:10
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Old April 26th, 2017, 07:23 PM   #127
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My " big plan " is this.

The faster ship sends a crew to check a landing site on Mars ( there are really smooth 20-30 km dia craters that seem even for landing ). The lander with 2 persons ( and 2 electric cars ) drive back and forth the crater to check anything dangerous and flags a landing strip for the big ship that carries the building material for a habitat. The habitat has to be somewhere near there too ( valley that can be covered with a greenhouse ).

The two man crew of the big ship departs ( with the scout team ) after initial build up has been done. Big ship stays in the crater to be refuelled later after the fuel production has been put to action. Later Elon Musk brings folks there with his 50 m high 100 people IST ship.

This is a low risk job as there will be more players to be able to help one another in colonizing the planet.


http://orbiterchspacenews.blogspot.f...8_archive.html

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Old April 26th, 2017, 07:28 PM   #128
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No way the radius of rotation to where astronauts sleep is 7 meters, looking at your cross section.

Also, it seems you are not understanding the part about Coriolis force.

The problem is the gravity gradient created between upper and lower body parts when the axis of rotation is too close to the surface where the astrout stands.

The beds are on the outer wall of the habitat. Plane can be tuned to have even 18 m distance if needed.


Nothing mystical about coriolis; https://en.wikipedia.org/wiki/Coriolis_force
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Old April 27th, 2017, 09:43 AM   #129
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No way the radius of rotation to where astronauts sleep is 7 meters, looking at your cross section.

Also, it seems you are not understanding the part about Coriolis force.

The problem is the gravity gradient created between upper and lower body parts when the axis of rotation is too close to the surface where the astrout stands.

The beds are indicated here symbolically ( must be turned 90 degs ).


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Old April 27th, 2017, 12:26 PM   #130
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This is also possible....a system to get T-bird 2 to Mars with MPDT with SRBs alone. This first stage is not reusable. I wonder if T-BIRD 2 could also land on mars like T-Bird 1. This puts only 4 people on the surface of Mars.


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Old April 28th, 2017, 06:01 AM   #131
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How about this system ( I know Aces High will freak out ) ?

This is based on the fact that light wing loading slow big propeller kitelike aeroplane can climb to the highest altitude ( research history ).

This is twice as big as the Hercules C-130 in wingarea and just 1/4 in wingloading with 100 x more power than Solar Impulse and 150 x more than Helios the altitude record braker from 2003.

Fuel costs just 90 K€ for this two seater than can fly around the world few times at 28 000 km/h ? A must for a boy ( or a girl ) of all ages ( as a model or real ) ???


I know the mothership is very efficient as I have tested several models of this similar concept before ( not with jettisonable rocket though ).

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Old April 28th, 2017, 08:01 PM   #132
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I don't have any designs exactly because I am not a delusional fool that thinks that designing ships and rockets is just like playing Kerbal Space Program.
Those things wouldn't even fly in KSP, though. Not using realistic parts, at least. I guess anything is possible if you edit the confic files of the parts, but at that point you're not even playing the game.
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Old April 28th, 2017, 10:45 PM   #133
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Those things wouldn't even fly in KSP, though. Not using realistic parts, at least. I guess anything is possible if you edit the confic files of the parts, but at that point you're not even playing the game.

I don't know the game so I dunno what I am missing. Care to elaborate what is wrong ?
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Old April 28th, 2017, 10:46 PM   #134
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This has now twice the solar power compared to SOLAR IMPULSE II from solar panels alone, but since this flys at day time this will have additionally more battery power to the solar power...and lots of it.


Model building at NASA ! https://www.wired.com/2017/03/flight...-flies-future/

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Old April 29th, 2017, 08:09 AM   #135
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Yes I have developed the Virginus Clark and Howard Hughes developed Duramold into a 2 x more stronger material with Kevlar density. It is very expensive. Space rockets could be the application as it is radiation proof...better than steel or lead ( when weight considered ).
So you plan on building the rockets from this wood laminate as well? Interesting. It would definitely be a revolution in space technology. Wooden rockets.

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Yes I have developed the Virginus Clark
Was the name of this ship inspired by Clark Kent before he hooked up with Lana Lang?
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Old April 29th, 2017, 09:17 AM   #136
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So you plan on building the rockets from this wood laminate as well? Interesting. It would definitely be a revolution in space technology. Wooden rockets.



Was the name of this ship inspired by Clark Kent before he hoked up with Lana Lang?

I dont think the wood be much present there. It could if it is what it is supposed to be. See the wood has been developed in 5 billion years span to be what it is...and when compressed into super dense material it beats aluminium with 400% more strenght with same weight. Hard to leave it outa equations.


This particular space plane is a brainstorming result from the winter of 2012.

Here is Virginius E. Clark the most infuental US aerospace engineer; https://en.wikipedia.org/wiki/Virginius_E._Clark




Yes and it was inspired before Lana Lang.


Clark Kent is caught on camera on a night club under the stairs before Lana Lang; https://www.youtube.com/watch?v=8x7Ta89QLo4


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Old April 30th, 2017, 04:07 AM   #137
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I dont think the wood be much present there. It could if it is what it is supposed to be. See the wood has been developed in 5 billion years span to be what it is...and when compressed into super dense material it beats aluminium with 400% more strenght with same weight. Hard to leave it outa equations.


This particular space plane is a brainstorming result from the winter of 2012.

Here is Virginius E. Clark the most infuental US aerospace engineer; https://en.wikipedia.org/wiki/Virginius_E._Clark
Ah I see. Never heard of this guy but it looks like he is a 19th century genius. So you are using advanced 19th century technology to build a modern space plane. That's an intriguing strategy. I wonder if you have ever considered including steam power into your design. Since it is electric, and solar powered, you could use the heat of the sun to produce super-heated steam, and thus create a "steam rocket". No more need for giant fuel tanks, and a complete revolution in space technology. You could go down in history as the father of steampunk spaceships.
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Old April 30th, 2017, 09:17 AM   #138
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Ah I see. Never heard of this guy but it looks like he is a 19th century genius. So you are using advanced 19th century technology to build a modern space plane. That's an intriguing strategy. I wonder if you have ever considered including steam power into your design. Since it is electric, and solar powered, you could use the heat of the sun to produce super-heated steam, and thus create a "steam rocket". No more need for giant fuel tanks, and a complete revolution in space technology. You could go down in history as the father of steampunk spaceships.

He was at the time the most prominent US aeroplane engineer. Hughes did not hire loosers.


Anyway the old african proverb tells us that you go to the future roving back first looking back and moving the upstream.


Burt Rutan also tried the wood ( regular ply ) but was not really into it.


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Old May 1st, 2017, 10:28 AM   #139
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your section cut shows only a narrow passage inside the tubes for people. Anyway, people are too close to axis of rotation. You can´t have a slow roll at that diameter from the axis to get 1g and even worse, people will feel dizzy because of coriolis effect.


Watch and learn more; https://www.youtube.com/watch?v=86JAU3w9mB8
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Old May 2nd, 2017, 05:17 AM   #140
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No way the radius of rotation to where astronauts sleep is 7 meters, looking at your cross section.

Also, it seems you are not understanding the part about Coriolis force.

The problem is the gravity gradient created between upper and lower body parts when the axis of rotation is too close to the surface where the astrout stands.

Here the beds are 18 meters apart.


I switched the craft to be fully liquid fuel propelled.


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