Re: White Elephant (was Re: Naming 'the stick')
- From: "Tom Cuddihy" <tom.cuddihy@xxxxxxxxx>
- Date: 3 Jul 2005 14:19:20 -0700
William Mook wrote:
> We're a lot closer to returning to the moon than many think...
>
> Some good slides on shuttle derived hardware here;
>
> http://www.abo.fi/~mlindroo/Station/Slides/sld051p.htm
>
> I favor an eight element vehicle consisting of seven External Tanks
> (ETs) equipped with cross-feeding each propelled by seven SSME derived
> engines called STME - more about STME here;
>
> http://books.nap.edu/openbook/0309047269/html/58.html
>
> A total of 49 STME at lift off. All engines fire at lift off - the
> seven tanks are clustered together;
>
> (1)(2)
> (3)(4)(5)
> (6)(7)
>
Of course you have to launch it from a barge in the middle of the ocean
or else it's goodbye Titusville, JFK visitors center, and everything
else within a 30 mile radius.
> With 1 and 6 feeding 3
> and 2 and 7 feeding 5
> and 3 and 5 feeding 4
>
> THis way only 1,2,5,7 are drained - they're the first stage.
>
> Then, they're dropped - and reovered...
>
> Then you have
>
> (3)(4)(5)
>
> With 2 and 5 feeding 4 - and 2 and 5 are drained with 21 engines
> firing...
>
> They're dropped when empty, leaving 4 - to continue the flight...
>
> that's the second stage.
>
> Element (4) is the third stage...
>
> The eighth element sits atop (4) in line with it, and is propelled by a
> trio of STMEs. It makes it all the way to orbit, carrying 200 tons -
> with a delta vee capability that allows the 200 tons to be projected
> anywhere in the inner solar system.
>
> The bulk of the 200 tons can be landed on Mars one way (with
> aerobraking). Or, 120 tons can be soft landed one way on the moon,
> with a lander (propelled by a cluster of RL10 engines equipped with
> high-expansion nozzles)
>
> A return vehicle amounting to 60 tons can be sent back to Earth - with
> this direct landing approach - from the moon - allowing 60 tons to be
> shuttled back and forth from the moon.
>
> 60 tons can be returned from Mars as well, following Zubrin's ideas of
> using Mars' atmosphere to resupply the propellant- and carrying a small
> nuclear energy source along with a small amount of hydrogen - to create
> methane and oxygen from Mars' air.
>
> On the moon a larger nuclear source, combined with frozen water
> supplies believed to exist below the surface, allows return of 120 tons
> from the moon - without leaving any hardware on the moon, or in
> transit. Thus, 300 people could visit the moon for about $300 million
> - or $1 million per person - with reasonable rates of return.
>
> There are about 30,000 people some estimate that would be willing to
> spend $1 million each to visit the moon each year. Tihs is enough to
> support 100 flights and create an industry worth $30 billion per year.
> A fleet of 10 vehicles would be needed to sustain a twice weekly flight
> to the moon. The Earth's economy is currently $40 trillion - this
> small number of super-rich people could easily be sustained.
>
> Of course, in this stream of activity governments and corporations
> could also pick up trips to the moon and mars, along with workers at
> the lunar and mars hotels, outposts, restaurants, research centers,
> schools, hospitals, police stations engineering service centers, flight
> service stations, and so forth...
.
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