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#1
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Being a little hot, buoyant and having 10% less gravity is actually a
darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. For this topic I have an unusual airship to R&D, as intended for a rather toasty dry and calm environment. Think of this application as a floating city if you like, or consider this one as merely a small or as large as need be robotic probe that can remain efficiently aloft for nearly unlimited time without much energy demand while drifting or even when cruising along at perhaps an average air-speed of less than 10 m/s, as such wouldn’t demand but a few kw for managing a good sized airship. Taking into account the 1.75 kg/m3 by day and perhaps 2.5 kg/m3 of nighttime buoyancy at 50 km is roughly worth twice that of any terrestrial airship application, and for the most part it’s actually fairly calm, kind of inert nice enough and even relatively cool because it’s at such a good deal of altitude away from that geothermal radiating planet, and otherwise operating within the nighttime season, and still situated well enough below the bulk of those otherwise thick and nasty acidic clouds. Because the inert infrastructure of this rigid airship doesn’t change per given altitude means that its hauling capacity or payload is capable of becoming downright impressive, getting much better as one operates at lower altitudes, such as below 35 km by season of day and below 25 km by season of nighttime is where that robust S8/CO2 atmosphere is nearly crystal dry and clear for as far as you can see (depending on terrain, roughly 500 km in all directions). Initially, this is a very rigid composite and robust kind of mostly robotic airship, intended as an extended expedition probe. It’s somewhat of a conventional blimp like craft, except using a rigid composite hull with a 6:1 L/W ratio instead of the more common terrestrial 5:1. In my way of thinking, it has a rather thick outer composite hull that’s nicely insulative (critical science instrument/components area being insulated by R-100 or better) as obviously acidic proof, not to mention melt proof, not that its failsafe hydrogen gas displacement or that of its vacuum worth of artificial buoyancy need be all that acid proof or even having to be excessively cooled, because the bulk of this airship can be rated for 811 K (1000°F). There are four rather over-sized longitudinal stabilizer fins, used for obvious flight stability, but also utilized for their heat- exchanging functions, and otherwise a pair of midship underbelly landing skids (just in case). Its configuration might incorporate one fully ducted set of large diameter counter-rotating pusher fans, plus four other fully rotatable thrusters (two on either forward/aft side for a total boost of 10% main engine thrust), that collectively can also be utilized as forward/ reverse motion thrusters. The maximum velocity potential of 100 m/s need not be necessary, and certainly not one of those all or nothing considerations, because 10 m/s is more than good enough unless striving to migrate though those acidic clouds in order to cruise essentially above the 75 km nighttime worth of those fast moving clouds (80~85 km by day) . This craft is not going to be your average Hindenburg, much less flammable or otherwise combustible, although intended for efficiently cruising about Venus where size and mass are of little concern when having 64+ kg/m3 worth of buoyancy, and only 90.5% gravity to work with is certainly going to avoid all sorts of inert mass considerations that would have more than grounded the Hindenburg. In addition to certain liquid fuels that can be safely incorporated, there will be a pair of custom RTGs running at more than hot enough to melt aluminum, and a likely Stirling thermal dynamic process of utilizing that heat at roughly 25+% efficiency for all of the onboard systems and main propulsion. Getting rid of 75% worth of RTG heat shouldn’t be all that insurmountable, especially with such a thermally conductive flow of that toasty Venusian atmosphere flowing past, as worthy of roughly 10% the density of water, in that the closer we cruise to the geothermally active surface the more dense and thermally conductive becomes the surrounding S8 and CO2 atmosphere. Once again, on behalf of Usenet/Group diehard naysayers, this topic is not about our having to terraform Venus, or that of our having to prance ourselves about in the buff, at least not without our trusty OveGlove jumpsuit and portable CO2--co/o2 plus heat-exchanging unit. Instead, we’re talking mostly about a fully robotic craft that really doesn’t care how hot and nasty it is outside, and may never have to land for the next hundred years, with a future human flight configured version that’s clearly scaled in sufficient volume in order to suit the applications of sustaining human our frail life for extended periods of time while cruising extensively at or below 25 km. Even though Geoffrey Landis wisely publishes most everything of his expertise as science fiction, it’s based entirely upon the regular laws of physics, and for the most part using the best available science. This doesn’t mean that I’d worship each and every published word of Landis or from others of his kind, although it does fully demonstrate that I’m not the one and only wise enough individual that’s deductively thinking constructively and thus positively about accomplishing those Venus expeditions. Venus exploration papers / Geoffrey A. Landis http://www.sff.net/people/geoffrey.landis/papers.html Evaluation of Long Duration Flight on Venus / by Anthony J. Colozza and Geoffrey A. Landis http://gltrs.grc.nasa.gov/reports/20...006-214452.pdf This paper was for the most part generated long after my having insisted that such a mission via aircraft/airship was technically doable, although this Geoffrey and Anthony version focused mostly on behalf of solar powered and RTG as necessary, whereas such there’s nothing much innovative or all that ground breaking to report, especially since much of their airship application is operated within a terrestrial like environment by way of keeping good altitude. This is not saying that my ideas are of the one and only do-or-die alternatives, as I’m not the least bit opposed to incorporating viable alternatives, or having to share most of the credits with those having contributed their honest expertise. In other words, I’m not the bad guy here, nor am I interested in hearing from those having ulterior motives or counter intentions of merely topic/author stalking and bashing for all they can muster. . – Brad Guth |
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On May 4, 2:31*pm, BradGuth wrote:
Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. *Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. For this topic I have an unusual airship to R&D, as intended for a rather toasty dry and calm environment. *Think of this application as a floating city if you like, or consider this one as merely a small or as large as need be robotic probe that can remain efficiently aloft for nearly unlimited time without much energy demand while drifting or even when cruising along at perhaps an average air-speed of less than 10 m/s, as such wouldn’t demand but a few kw for managing a good sized airship. Taking into account the 1.75 kg/m3 by day and perhaps 2.5 kg/m3 of nighttime buoyancy at 50 km is roughly worth twice that of any terrestrial airship application, and for the most part it’s actually fairly calm, kind of inert nice enough and even relatively cool because it’s at such a good deal of altitude away from that geothermal radiating planet, and otherwise operating within the nighttime season, and still situated well enough below the bulk of those otherwise thick and nasty acidic clouds. Because the inert infrastructure of this rigid airship doesn’t change per given altitude means that its hauling capacity or payload is capable of becoming downright impressive, getting much better as one operates at lower altitudes, such as below 35 km by season of day and below 25 km by season of nighttime is where that robust S8/CO2 atmosphere is nearly crystal dry and clear for as far as you can see (depending on terrain, roughly 500 km in all directions). Initially, this is a very rigid composite and robust kind of mostly robotic airship, intended as an extended expedition probe. *It’s somewhat of a conventional blimp like craft, except using a rigid composite hull with a 6:1 L/W ratio instead of the more common terrestrial 5:1. In my way of thinking, it has a rather thick outer composite hull that’s nicely insulative (critical science instrument/components area being insulated by R-100 or better) as obviously acidic proof, not to mention melt proof, not that its failsafe hydrogen gas displacement or that of its vacuum worth of artificial buoyancy need be all that acid proof or even having to be excessively cooled, because the bulk of this airship can be rated for 811 K (1000°F). There are four rather over-sized longitudinal stabilizer fins, used for obvious flight stability, but also utilized for their heat- exchanging functions, and otherwise a pair of midship underbelly landing skids (just in case). Its configuration might incorporate one fully ducted set of large diameter counter-rotating pusher fans, plus four other fully rotatable thrusters (two on either forward/aft side for a total boost of 10% main engine thrust), that collectively can also be utilized as forward/ reverse motion thrusters. The maximum velocity potential of 100 m/s need not be necessary, and certainly not one of those all or nothing considerations, because 10 m/s is more than good enough unless striving to migrate though those acidic clouds in order to cruise essentially above the 75 km nighttime worth of those fast moving clouds (80~85 km by day) . This craft is not going to be your average Hindenburg, much less flammable or otherwise combustible, although intended for efficiently cruising about Venus where size and mass are of little concern when having 64+ kg/m3 worth of buoyancy, and only 90.5% gravity to work with is certainly going to avoid all sorts of inert mass considerations that would have more than grounded the Hindenburg. In addition to certain liquid fuels that can be safely incorporated, there will be a pair of custom RTGs running at more than hot enough to melt aluminum, and a likely Stirling thermal dynamic process of utilizing that heat at roughly 25+% efficiency for all of the onboard systems and main propulsion. Getting rid of 75% worth of RTG heat shouldn’t be all that insurmountable, especially with such a thermally conductive flow of that toasty Venusian atmosphere flowing past, as worthy of *roughly 10% the density of water, in that the closer we cruise *to the geothermally active surface the more dense and thermally conductive becomes the surrounding S8 and CO2 atmosphere. Once again, on behalf of Usenet/Group diehard naysayers, this topic is not about our having to terraform Venus, or that of our having to prance ourselves about in the buff, at least not without our trusty OveGlove jumpsuit and portable CO2--co/o2 plus heat-exchanging unit. Instead, we’re talking mostly about a fully robotic craft that really doesn’t care how hot and nasty it is outside, and may never have to land for the next hundred years, with a future human flight configured version that’s clearly scaled in sufficient volume in order to suit the applications of sustaining human our frail life for extended periods of time while cruising extensively at or below 25 km. Even though Geoffrey Landis wisely publishes most everything of his expertise as science fiction, it’s based entirely upon the regular laws of physics, and for the most part using the best available science. *This doesn’t mean that I’d worship each and every published word of Landis or from others of his kind, although it does fully demonstrate that I’m not the one and only wise enough individual that’s deductively thinking constructively and thus positively about accomplishing those Venus expeditions. Venus exploration papers / Geoffrey A. Landis *http://www.sff.net/people/geoffrey.landis/papers.html Evaluation of Long Duration Flight on Venus / by Anthony J. Colozza and Geoffrey A. Landis *http://gltrs.grc.nasa.gov/reports/20...006-214452.pdf *This paper was for the most part generated long after my having insisted that such a mission via aircraft/airship was technically doable, although this Geoffrey and Anthony version focused mostly on behalf of solar powered and RTG as necessary, whereas such there’s nothing much innovative or all that ground breaking to report, especially since much of their airship application is operated within a terrestrial like environment by way of keeping good altitude. This is not saying that my ideas are of the one and only do-or-die alternatives, as I’m not the least bit opposed to incorporating viable alternatives, or having to share most of the credits with those having contributed their honest expertise. *In other words, I’m not the bad guy here, nor am I interested in hearing from those having ulterior motives or counter intentions of merely topic/author stalking and bashing for all they can muster. . – Brad Guth Brad what did you think of that "Disclosure Project" http://www.youtube.com/watch?v=7vyVe-6YdUk or www.disclosureproject.org |
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On May 5, 12:34 am, LIBERATOR wrote:
Brad what did you think of that "Disclosure Project" http://www.youtube.com/watch?v=7vyVe...ureproject.org Thanks to our popular mainstream media that'll publish and/or exclude whatever they're told by those in charge, and otherwise by that of our "no child left behind" policy, I didn't here a darn thing about it, and Usenet/Groups certainly didn't make much if anything of it. (wonder why) Besides the fact that ETs do exist, and that it's quite likely they have also existed/coexisted on Venus (because that's technically doable), what if anything of this "Disclosure Project" doings had anything whatsoever to do with any composite rigid airship, as intended for cruising Venus? In other words, why did you fail to grasp the meaning or intent of this topic "Venus Airships"? .. - Brad Guth |
#4
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![]() "BradGuth" wrote in message ... Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. snip drivel And, pray tell Brad, where would the above ship be manufactured ? On the surface of Venus, you say? I don't think so. Oh, I see ... you'd build it on Mars and then have the Acme Intergalactic Airship Towing Company move it to Venus and insert it into the proper orbit. Good plan, Brad. Keep up the fine work. Ed Conrad wants to talk to you .... something about an ossified brain ... |
#5
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On May 5, 7:25 am, "Hagar" wrote:
"BradGuth" wrote in message ... Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. snip drivel And, pray tell Brad, where would the above ship be manufactured ? On the surface of Venus, you say? I don't think so. Oh, I see ... you'd build it on Mars and then have the Acme Intergalactic Airship Towing Company move it to Venus and insert it into the proper orbit. Good plan,Brad. Keep up the fine work. Ed Conrad wants to talk to you .... something about an ossified brain ... Dear "snip drivel", Most certainly not in your backyard, or by way of any of your "snip drivel" certified friends. It seems your profound nayism and lack of constructive contributions to this or for that matter of most any topic is equal to none other than whatever DARPA expects of their brown-nosed minions. As such, your warm and fuzzy services are no longer needed, especially since you show no honest signs of being the least bit qualified or even knowing of those qualified in rigid airship R&D. Did I miss anything? In other words, you and others of your disinformation spewing kind are either bogus to start with or totally dumbfounded past the point of no return, and as such you each need those DARPA instructions as to wipe your butt or blow your nose, not that you'd know one such brownish hole from another. If you had anything on-topic and constructive to say, you'd have said it. BTW, of where this rigid and mostly composite airship is created is immaterial, and of how it gets deployed to Venus and through those robust acidic clouds is apparently outside your best expertise, because if you were the least bit human, as such you would have shared a little something for accomplishing that aspect. In case you somehow misunderstood the intent of this topic, there's no required airship orbit, other than aligned for the rather bumpy reentry of getting this rigid airship down to the initial 50 km, before descending to its nominal 25 km (+/- 5 km) intended cruising altitude. Possibly something as halo station-keeping within Venus L2 might be required for the data relay or mission transponder in addition to whatever's left in orbit upon having released the airship for its extended expedition of cruising below them thick clouds. . - Brad Guth |
#6
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![]() "BradGuth" wrote in message ... On May 5, 7:25 am, "Hagar" wrote: "BradGuth" wrote in message ... Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. snip drivel And, pray tell Brad, where would the above ship be manufactured ? On the surface of Venus, you say? I don't think so. Oh, I see ... you'd build it on Mars and then have the Acme Intergalactic Airship Towing Company move it to Venus and insert it into the proper orbit. Good plan,Brad. Keep up the fine work. Ed Conrad wants to talk to you .... something about an ossified brain ... Dear "snip drivel", Most certainly not in your backyard, or by way of any of your "snip drivel" certified friends. It seems your profound nayism and lack of constructive contributions to this or for that matter of most any topic is equal to none other than whatever DARPA expects of their brown-nosed minions. As such, your warm and fuzzy services are no longer needed, especially since you show no honest signs of being the least bit qualified or even knowing of those qualified in rigid airship R&D. Did I miss anything? Yea, you dumb ****, you didn't answer my question, which is: Where will you build them and how will you get them into the atmosphere of Venus. A straight forward question, to which you obviously do not have an answer, you loon. Considering the sulphuric content of said atmosphere (minor detail), what materials of construction were you going to use ?? No generalities please, since that seems to be your forte. do you plan to use?? Titanium you say, holy moley, it'll drop like a rock |
#7
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On May 5, 6:32 pm, "Hagar" wrote:
"BradGuth" wrote in message ... On May 5, 7:25 am, "Hagar" wrote: "BradGuth" wrote in message ... Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. snip drivel And, pray tell Brad, where would the above ship be manufactured ? On the surface of Venus, you say? I don't think so. Oh, I see ... you'd build it on Mars and then have the Acme Intergalactic Airship Towing Company move it to Venus and insert it into the proper orbit. Good plan,Brad. Keep up the fine work. Ed Conrad wants to talk to you .... something about an ossified brain .... Dear "snip drivel", Most certainly not in your backyard, or by way of any of your "snip drivel" certified friends. It seems your profound nayism and lack of constructive contributions to this or for that matter of most any topic is equal to none other than whatever DARPA expects of their brown-nosed minions. As such, your warm and fuzzy services are no longer needed, especially since you show no honest signs of being the least bit qualified or even knowing of those qualified in rigid airship R&D. Did I miss anything? Yea, you dumb ****, you didn't answer my question, which is: Where will you build them and how will you get them into the atmosphere of Venus. A straight forward question, to which you obviously do not have an answer, you loon. Considering the sulphuric content of said atmosphere (minor detail), what materials of construction were you going to use ?? No generalities please, since that seems to be your forte. do you plan to use?? Titanium you say, holy moley, it'll drop like a rock If I were put in charge, the last kind of folks I'd have on this team are those continually spouting off with those naysay loaded questions that usually have nothing whatsoever to do with the R&D phase, such as where it's going to be built and for those methods of getting this airship safely deployed below them Venus clouds is entirely another can of worms, much like yourself. Since I’m unlike most in Usenet/Groups, whereas I'm not all-knowing nor otherwise a crack wizard at everything is perhaps why I've merely posted this topic as a worthy idea, with allowances for design variations and methods that'll take kindly to the toasty environment of Venus. Silly me for thinking your supposed expertise and better numbers would ever help further this topic along. In case you’re still interested, I'm assuming we'd start at something of a 1/10th scaled down prototype. However, at 50 km by season of nighttime is potentially freezing, as well as getting some of that acidic haze as fallout from those thick clouds, and that's why cruising at 25 km by night seems likely. BTW, your comment “Titanium you say, holy moley, it'll drop like a rock” is proof-positive that you have no idea what airship buoyancy Venus has to offer. A relatively thin outer shell of titanium is not a mission killer, although tough and high temperature certified composites as rated for reentry trauma shouldn’t be all that unlikely. Why don’t you suggest whatever makes Hagar a happy camper. . – Brad Guth |
#8
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In the simplest form, a sphere within a sphere is perfectly capable of
becoming a rigid airship, of sustaining the most pressure or vacuum per any given form. Think of this rigid airship as a series of such spheres aligned and interconnected as to forming this otherwise blimp like airship. A 100 meter outer sphere of 5.236e5 m3, having a 0.1 m thick composite hull offers an internal volumetric sphere of 99.8 meters, for a gross internal volume of 5.2046e5 m3. If we use 2.5 kg/m3 as the nighttime buoyancy of what’s roughly available at 45~50 km 5.236 * 2.5 = 13.09e5 kg gross buoyancy If the volume worth of this shell/hull being .0314e5 m3, and if this composite hull required 100 kg/m3 = 3.14e5 kg 13.09e5 – 3.14e5 = 9.95e5 kg as the net buoyancy (- infrastructure) Obviously 995 tonnes leaves us with a sufficient amount of buoyancy per sphere, as capacity for accommodating internal infrastructure and matters of displacing this interior with hydrogen, or that of merely pulling a vacuum, and otherwise incorporating all of the necessary systems for airship management, including those insulated and heat exchanged compartments of science instruments. The external CO2 itself becomes the ballast whenever necessary. In other words, without intentionally doing so, there’s no way in hell (so to literally speak) of this rigid airship ever falling out of that Venusian sky, as the buoyancy increases to 65+ kg/m3 before coming in contact with that geothermally heated surface, and greater yet as you head down into the low lands or basins of Venus where it’s really hot. At 1/10th scale, utilizing a 10 meter sphere we’re looking at 9.95 tonnes, so obviously doable though bigger is defiantly better, and of cruising at 25 km instead of the initial 50 km is going to drastically increase that buoyancy, as well as keeping this airship entirely within the crystal dry S8 and CO2 atmosphere of what’s becoming somewhat toasty but otherwise without h2o it’s not the least bit acidic unless parked over some nasty geothermal steaming vent. Fortunately, if the crew in remote operation of this otherwise robotic airship were station-keeping within their cool POOF City of Venus L2, means the control management loop isn’t but a few seconds, not that any such POOF City need be the case, even though it would be rather nice. Otherwise via terrestrial command, we’re talking of minutes to hours per command loop due to the great amount of difference in range from Earth. However, being this is an airship that’s going nowhere all that fast, and it isn’t going to bump into or otherwise fall into anything unexpected, at least other than encountering VHS(Venus Homeland Security) forces, means that whatever command loop delay isn’t all that important. . – Brad Guth On May 4, 1:31 pm, BradGuth wrote: Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. For this topic I have an unusual airship to R&D, as intended for a rather toasty dry and calm environment. Think of this application as a floating city if you like, or consider this one as merely a small or as large as need be robotic probe that can remain efficiently aloft for nearly unlimited time without much energy demand while drifting or even when cruising along at perhaps an average air-speed of less than 10 m/s, as such wouldn’t demand but a few kw for managing a good sized airship. Taking into account the 1.75 kg/m3 by day and perhaps 2.5 kg/m3 of nighttime buoyancy at 50 km is roughly worth twice that of any terrestrial airship application, and for the most part it’s actually fairly calm, kind of inert nice enough and even relatively cool because it’s at such a good deal of altitude away from that geothermal radiating planet, and otherwise operating within the nighttime season, and still situated well enough below the bulk of those otherwise thick and nasty acidic clouds. Because the inert infrastructure of this rigid airship doesn’t change per given altitude means that its hauling capacity or payload is capable of becoming downright impressive, getting much better as one operates at lower altitudes, such as below 35 km by season of day and below 25 km by season of nighttime is where that robust S8/CO2 atmosphere is nearly crystal dry and clear for as far as you can see (depending on terrain, roughly 500 km in all directions). Initially, this is a very rigid composite and robust kind of mostly robotic airship, intended as an extended expedition probe. It’s somewhat of a conventional blimp like craft, except using a rigid composite hull with a 6:1 L/W ratio instead of the more common terrestrial 5:1. In my way of thinking, it has a rather thick outer composite hull that’s nicely insulative (critical science instrument/components area being insulated by R-100 or better) as obviously acidic proof, not to mention melt proof, not that its failsafe hydrogen gas displacement or that of its vacuum worth of artificial buoyancy need be all that acid proof or even having to be excessively cooled, because the bulk of this airship can be rated for 811 K (1000°F). There are four rather over-sized longitudinal stabilizer fins, used for obvious flight stability, but also utilized for their heat- exchanging functions, and otherwise a pair of midship underbelly landing skids (just in case). Its configuration might incorporate one fully ducted set of large diameter counter-rotating pusher fans, plus four other fully rotatable thrusters (two on either forward/aft side for a total boost of 10% main engine thrust), that collectively can also be utilized as forward/ reverse motion thrusters. The maximum velocity potential of 100 m/s need not be necessary, and certainly not one of those all or nothing considerations, because 10 m/s is more than good enough unless striving to migrate though those acidic clouds in order to cruise essentially above the 75 km nighttime worth of those fast moving clouds (80~85 km by day) . This craft is not going to be your average Hindenburg, much less flammable or otherwise combustible, although intended for efficiently cruising about Venus where size and mass are of little concern when having 64+ kg/m3 worth of buoyancy, and only 90.5% gravity to work with is certainly going to avoid all sorts of inert mass considerations that would have more than grounded the Hindenburg. In addition to certain liquid fuels that can be safely incorporated, there will be a pair of custom RTGs running at more than hot enough to melt aluminum, and a likely Stirling thermal dynamic process of utilizing that heat at roughly 25+% efficiency for all of the onboard systems and main propulsion. Getting rid of 75% worth of RTG heat shouldn’t be all that insurmountable, especially with such a thermally conductive flow of that toasty Venusian atmosphere flowing past, as worthy of roughly 10% the density of water, in that the closer we cruise to the geothermally active surface the more dense and thermally conductive becomes the surrounding S8 and CO2 atmosphere. Once again, on behalf of Usenet/Group diehard naysayers, this topic is not about our having to terraform Venus, or that of our having to prance ourselves about in the buff, at least not without our trusty OveGlove jumpsuit and portable CO2--co/o2 plus heat-exchanging unit. Instead, we’re talking mostly about a fully robotic craft that really doesn’t care how hot and nasty it is outside, and may never have to land for the next hundred years, with a future human flight configured version that’s clearly scaled in sufficient volume in order to suit the applications of sustaining human our frail life for extended periods of time while cruising extensively at or below 25 km. Even though Geoffrey Landis wisely publishes most everything of his expertise as science fiction, it’s based entirely upon the regular laws of physics, and for the most part using the best available science. This doesn’t mean that I’d worship each and every published word of Landis or from others of his kind, although it does fully demonstrate that I’m not the one and only wise enough individual that’s deductively thinking constructively and thus positively about accomplishing those Venus expeditions. Venus exploration papers / Geoffrey A. Landis http://www.sff.net/people/geoffrey.landis/papers.html Evaluation of Long Duration Flight on Venus / by Anthony J. Colozza and Geoffrey A. Landis http://gltrs.grc.nasa.gov/reports/20...006-214452.pdf This paper was for the most part generated long after my having insisted that such a mission via aircraft/airship was technically doable, although this Geoffrey and Anthony version focused mostly on behalf of solar powered and RTG as necessary, whereas such there’s nothing much innovative or all that ground breaking to report, especially since much of their airship application is operated within a terrestrial like environment by way of keeping good altitude. This is not saying that my ideas are of the one and only do-or-die alternatives, as I’m not the least bit opposed to incorporating viable alternatives, or having to share most of the credits with those having contributed their honest expertise. In other words, I’m not the bad guy here, nor am I interested in hearing from those having ulterior motives or counter intentions of merely topic/author stalking and bashing for all they can muster. . –BradGuth |
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In article ,
Bertie the Bunyip wrote: LIBERATOR wrote in news:60fd3bdd-ede0-4c06-8e82- : On May 4, 2:31*pm, BradGuth wrote: Being a little hot, buoyant and having 10% less gravity is actually a darn good thing if you were a Venusian airship, even if limited as to an oven-wrap or KetaSpire PEEK polyetheretherketone and fiber reinforced balloon. *Such fiber reinforced composites do exist, although an outer skin of something in basic titanium shouldn’t be excluded for this rigid airship configuration. For this topic I have an unusual airship to R&D, as intended for a rather toasty dry and calm environment. *Think of this application as a floating city if you like, or consider this one as merely a small or as large as need be robotic probe that can remain efficiently aloft for nearly unlimited time without much energy demand while drifting or even when cruising along at perhaps an average air-speed of less than 10 m/s, as such wouldn’t demand but a few kw for managing a good sized airship. Taking into account the 1.75 kg/m3 by day and perhaps 2.5 kg/m3 of nighttime buoyancy at 50 km is roughly worth twice that of any terrestrial airship application, and for the most part it’s actually fairly calm, kind of inert nice enough and even relatively cool because it’s at such a good deal of altitude away from that geothermal radiating planet, and otherwise operating within the nighttime season, and still situated well enough below the bulk of those otherwise thick and nasty acidic clouds. Because the inert infrastructure of this rigid airship doesn’t change per given altitude means that its hauling capacity or payload is capable of becoming downright impressive, getting much better as one operates at lower altitudes, such as below 35 km by season of day and below 25 km by season of nighttime is where that robust S8/CO2 atmosphere is nearly crystal dry and clear for as far as you can see (depending on terrain, roughly 500 km in all directions). Initially, this is a very rigid composite and robust kind of mostly robotic airship, intended as an extended expedition probe. *It’s somewhat of a conventional blimp like craft, except using a rigid composite hull with a 6:1 L/W ratio instead of the more common terrestrial 5:1. In my way of thinking, it has a rather thick outer composite hull that’s nicely insulative (critical science instrument/components area being insulated by R-100 or better) as obviously acidic proof, not to mention melt proof, not that its failsafe hydrogen gas displacement or that of its vacuum worth of artificial buoyancy need be all that acid proof or even having to be excessively cooled, because the bulk of this airship can be rated for 811 K (1000°F). There are four rather over-sized longitudinal stabilizer fins, used for obvious flight stability, but also utilized for their heat- exchanging functions, and otherwise a pair of midship underbelly landing skids (just in case). Its configuration might incorporate one fully ducted set of large diameter counter-rotating pusher fans, plus four other fully rotatable thrusters (two on either forward/aft side for a total boost of 10% main engine thrust), that collectively can also be utilized as forward/ reverse motion thrusters. The maximum velocity potential of 100 m/s need not be necessary, and certainly not one of those all or nothing considerations, because 10 m/s is more than good enough unless striving to migrate though those acidic clouds in order to cruise essentially above the 75 km nighttime worth of those fast moving clouds (80~85 km by day) . This craft is not going to be your average Hindenburg, much less flammable or otherwise combustible, although intended for efficiently cruising about Venus where size and mass are of little concern when having 64+ kg/m3 worth of buoyancy, and only 90.5% gravity to work with is certainly going to avoid all sorts of inert mass considerations that would have more than grounded the Hindenburg. In addition to certain liquid fuels that can be safely incorporated, there will be a pair of custom RTGs running at more than hot enough to melt aluminum, and a likely Stirling thermal dynamic process of utilizing that heat at roughly 25+% efficiency for all of the onboard systems and main propulsion. Getting rid of 75% worth of RTG heat shouldn’t be all that insurmountable, especially with such a thermally conductive flow of that toasty Venusian atmosphere flowing past, as worthy of *roughly 10% the density of water, in that the closer we cruise *to the geothermally active surface the more dense and thermally conductive becomes the surrounding S8 and CO2 atmosphere. Once again, on behalf of Usenet/Group diehard naysayers, this topic is not about our having to terraform Venus, or that of our having to prance ourselves about in the buff, at least not without our trusty OveGlove jumpsuit and portable CO2--co/o2 plus heat-exchanging unit. Instead, we’re talking mostly about a fully robotic craft that really doesn’t care how hot and nasty it is outside, and may never have to land for the next hundred years, with a future human flight configured version that’s clearly scaled in sufficient volume in order to suit the applications of sustaining human our frail life for extended periods of time while cruising extensively at or below 25 km. Even though Geoffrey Landis wisely publishes most everything of his expertise as science fiction, it’s based entirely upon the regular laws of physics, and for the most part using the best available science. *This doesn’t mean that I’d worship each and every publishe d word of Landis or from others of his kind, although it does fully demonstrate that I’m not the one and only wise enough individual that’s deductively thinking constructively and thus positively about accomplishing those Venus expeditions. Venus exploration papers / Geoffrey A. Landis *http://www.sff.net/people/geoffrey.landis/papers.html Evaluation of Long Duration Flight on Venus / by Anthony J. Colozza and Geoffrey A. Landis *http://gltrs.grc.nasa.gov/reports/20...006-214452.pdf *This paper was for the most part generated long after my having insisted that such a mission via aircraft/airship was technically doable, although this Geoffrey and Anthony version focused mostly on behalf of solar powered and RTG as necessary, whereas such there’s nothing much innovative or all that ground breaking to report, especially since much of their airship application is operated within a terrestrial like environment by way of keeping good altitude. This is not saying that my ideas are of the one and only do-or-die alternatives, as I’m not the least bit opposed to incorporating viable alternatives, or having to share most of the credits with those having contributed their honest expertise. *In other words, I’m not the bad guy here, nor am I interested in hearing from those having ulterior motives or counter intentions of merely topic/author stalking and bashing for all they can muster. . – Brad Guth Brad what did you think of that "Disclosure Project" http://www.youtube.com/watch?v=7vyVe-6YdUk or www.disclosureproject.org Hey Libby! How's thngs at the Bates motel? does this havce anything to do withg the late great bodes sunspot arf meow arf - everything thing i know i learned from the collective unconscience of odd bodkins sacramento - political pigsty of the western world or a babys arm holding an apple |
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