Re: How Rockets Differ From Jets

>tomcat; It may have something to do with 'X amount of energy
>requirement for a 200 mile high orbit'. Wings or not you have
>to have 'X amount of energy', they say.
"They say" a lot of things. "They say" the mutual
gravity-well/nullification zone between us and the moon is roughly 84%
of the distance towards the moon, and thereby we're talking 16% of the
distance away from the moon. "They say" we've walked upon the moon but,
somehow managed to lose all of their related fly-by-rocket lander R&D
as well as having lost their Kodak conditional laws of photon and film
physics that apparently only applies to our moon.

16% of 384,400 km is 61,504 km away from the center of the moon and
thereby 59,766 km off the gravitational center portion of the lunar
deck that's always nicely aligned with the gravitational center of
mother Earth (actually the Earth CG somewhat moves about as Earth
rotates and the moon doesn't seem to budge so much as a micro-degree
with respect to the whole of Earth, suggesting that the moon in fact
has a slushy core that's somewhat self aligning to the well certified
variable CG alignment of mother Earth.

With regards to spaceplane wings or perhaps that of one massive
aerodynamic foil worth of a waverider spaceplane body, thus affording
far more usable interior than any tile covered wing outfitted body as
suggested by your "huge gleaming white triangular spaceplane";
>Rocket equations take drag into consideration, but not gravity's
>assistance. While vertical/tubular rockets have drag too, it doesn't
>apply to them, because they don't have wings for using atmospheric
>energy.

>This is why it is true that it takes 'X amount of energy' to do a given
>amount of work for whatever vehicle is chosen. And, it explains why a
>'winged rocket' does so much better than a vertical/tubular rocket.
>Wings draw energy from gravity itself through the medium of air
>molecules that are being 'squeezed' to the Earth.

>So, all in all it means that success will come by making one gigantic
>monster of a waverider: tomcat's huge gleaming white triangular
>spaceplane.
I see no problem with your bigger is better. Of course folks like
"George Evans" seem to think small by way of continually thinking
inside the box, as well as having those pesky ulterior motives of
saying one thing while acting upon getting something entirely different
across.

Just wondering a bit; Are you thinking of a 45 degree final atmospheric
assent?

The composites of what basalt fibers and basalt microballoons as having
a degree of CNT involved seems likely of what should eventually become
doable. However, of what I've already provided upon existing basalt is
just the iceberg tip of what that composite alone can achieve as a
structurally insulative material that need not exceed 64 kg/m3 unless
the added mass of using more fibers and less balloons becomes a
priority.

Too bad that what I have to suggest is much like what you have to offer
as a plate full of the first, second and third helping, all of which
should more than have the inert mass of what any SRB assisted
spaceplane and of it's massive ET should amount to. Thus a replacement
shuttle as in the form of your "bigger is better" spaceplane should
have any problem whatsoever achieving those 100t deployments at 400+km,
with energy to spare.

Of course, if my Ra226-->LRn222-->ION thruster arrays become the
alternative to those SSMEs that are worth a 10t investment plus fuel
and the vast volumes necessary for accommodating such fuel per each
fully integrated SSME and, no matters what these SSMEs should still
suck LH2 and LO2 like there's no tomorrow, whereas without SSMEs but
instead LRn-->ION thrusters might represent payloads that can become
half again or roughly 50/50 of the spaceplane package. Meaning a 150t
spaceplane that's still having to be SRB assisted (possibly two-stage
SRBs) past 250,000'(76 km) could thus manage to safely deploy a 150t
item or that of multiple items that amount to 150t past the 400 km
mark.

Unfortunately the ulterior motivated likes of "George Evans" being
rather mindset upon carbon fibers that are extremely frail and spendy
as all get out compared to basalt fibers, whereas as far as I know of
there are no such things as carbon microballoons, nor for that matter a
CNT microballoon. There are however terrific insulative and combined
structural capability per cm3 of basalt, along with those existing
graphite epoxy as binders is still the overall king of the hill that's
not one cent on the dollar per carbon fibers and, perhaps not .001 cent
on the CNT dollar that's still another good decade down the winding R&D
road.

>George Evans; Here again, the extreme thermal conductivity of CNT is a
>drawback. Everybody mocks the TPS tiles on the shuttle but they really
>are amazing. If they are banded to a CNT/graphite epoxy composite
>structure, those fillers you are concerned about probably wouldn't be
>necessary.
George is another all or nothing sort of guy by way of his thinking
100% CNT or bust. Whats' so hard about thinking a little outside the
box, such as incorporating the CNT fibers as a fabric layer or perhaps
that of a wise matrix of CNT/basalt fibers representing the outer
structural composite layer that's containing the bulk of basalt
microballoons?

In inner most hull layer and certainly the likes of stringers, ribs,
decks and bulkheads could be 100% structural basalt composite that
could range anywhere from 32 kg/m3 to 2560 kg/m3. Purely insulative
basalt microballoons might easily represent less than 1 kg/m3 if those
little basalt suckers are full of H2 or even He. Christ almighty folks,
what more can you or the likes of lord/wizard "George Evans" possibly
ask for that has been doable for the past several decades?

I'd actually think that a little extra thermal conductivity for what's
directly below the Corelle/ceramic tiles or whatever spray-on ceramic
microballoon coating would be highly desirable, as possibly performing
a similar thermal rate of expansion by which this CNT/basalt outer
shell could best match the rate of ceramic expansion. I do agree with
"George Evans" that tile fillers need not be incorporated unless no
other thermal expansion alternative becomes available.

BTW; I'm not exactly sure how LH2 and slush LH2 differ in energy
density by all that much. In either case, a terribly insulative
containment of the likes of LH2 (slush or not) and the same goes for
LO2 could each be accommodated by way of using a composite of basalt
fibers and those highly insulative balloons along with the graphite
epoxy binders if not in some cases just utilizing good old end-user
friendly JB-WELD. A metallic internal coating via plasma spray could
make for quite another weight saving improvement. In fact, there could
be two or three viable containment layers of plasma applied metallic
coatings at less weight impact than a conventional tank that's
composite wrapped.
~

Kurt Vonnegut would have to agree; WAR is WAR, thus "in war there are
no rules" - In fact, war has been the very reason of having to deal
with the likes of others that haven't been playing by whatever rules,
such as GW Bush.
Life upon Venus, a township w/Bridge & ET/UFO Park-n-Ride Tarmac:
http://guthvenus.tripod.com/gv-town.htm
The Russian/China LSE-CM/ISS (Lunar Space Elevator)
http://guthvenus.tripod.com/lunar-space-elevator.htm
Venus ETs, plus the updated sub-topics; Brad Guth / GASA-IEIS
http://guthvenus.tripod.com/gv-topics.htm

.

Relevant Pages

  • Re: terraforming
    ... full of exactly what humanity needs the most; that being energy. ... Our moon needs an atmosphere, although not ... basalt on the moon, or rather just something short of burning basalt. ... Solar energy conversion need not be costly nor all that complex, ...
    (sci.space.history)
  • Re: OT. A self powered Radio, Do anyone remember Popular Science Article?
    ... the amount of energy that "a small amount of Radium" releases is ... Radium was used in much higher quantities then than it was until Tritium ... there were basically two options for radio detection - ...
    (misc.rural)
  • Re: What does Plancks constant really mean?
    ... > amount of energy difference between any frequencices. ... The formula does not place any quantization limits on ... This means that a photon is moving around a point of origin at the ...
    (sci.physics)
  • Re: Slabinski and Mingst/Stowe disagree in Pushing Gravity
    ... This is the minimum amount of momentum flux ... For a given amount of absorbed momentum flux there is a definite ... corresponding amount of kinetic energy, ... make this calculation we find that matter must be absorbing energy at ...
    (sci.physics.relativity)
  • Re: Energy and Mass
    ... All matter consists of an arrangement of energy. ... What this equation means is that the total amount of energy, E, ... comprising any amount of matter with mass m is equal to the mass ... textbook will give the amount of energy derived from this reaction as ...
    (sci.physics)