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The Space Show

The Space Show
The Space Show focuses on timely and important issues influencing the development of outer-space commerce, space tourism,space exploration and space development. The Space Show is committed to facilitating our becoming a space-faring nation and society with a growing and self-sustaining space-faring economy.  The Space Show also focuses on other related subjects of interest to us all.

Station feed: Click here to see an XML representation of the latest episodes on this station
Created by: David Livingston
Created on: 12 May 2005
Language: English


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Add this to another station Wayne Eleazer, Monday, 11-16-15 (108.23MB; download) -- Guest: Wayne Eleazer. Topics: Launch failures and why they happen. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed Wayne Eleazer to the show to discuss the history and why of rocket launch failures per the many articles he has written over the years on these subjects for The Space Review. In the first segment of our 1 hour 58 minute discussion, Wayne started us off responding to my question about the most dramatic launch failure he has seen or studied. He talked about a spectacular Titan failure so don't miss his story. Michael Listner called and talked about many topics including Air Force mishap reports. What Wayne had to say about the mishap reports and the Air Force candor regarding launch failures was very interesting and informative. Wayne introduced us to the Oops Factor regarding failures, a concept he used in an earlier Space Review article. This refers to one thing causing the launch failure but the people down the line with oversight responsibility all miss it or "oops!" SpaceX and the Falcon 9 problems came up many times but here Wayne talked about the needed culture in a company to deal with launch failures, learn from them, and work to keep them from happening again. He thought SpaceX was doing all of that. He also talked about Orbital ATK and the Antares and their culture, then I asked him about the SpaceShip2 failure/accident. Near the end of the first segment, Jay asked Wayne if military rockets had similar launch failure problems. Wayne's response about the military rocket motor, its reliability, testing, and costs was most illuminating. As we learned, the military rocket motor stands alone in quality. In the second segment, Wayne was asked if he could spot trends that cause launch failures over and over again. He said no but listen to his complete answer. He called this the "Predictables" and is completing a new Space Review article on this subject. He listed several examples including his use of the Challenger loss as well as Delta and Atlas failures. I asked him if on the military side, there were consequences for military personnel with responsibility and oversight duties, maybe a demotion, court martial, anything. You might be surprised by his answer to this question. We talked more about the Falcon 9 and EELVs in this segment, plus the old Thor and the Atlas. Barry asked Wayne about Russian launch failures. Wayne talked about the Russian culture and problems. Near the end, he said EELV reliability was improving. He made some additional Atlas and Falcon 9 comparisons, then I asked if there was an expected failure rate for these rockets. Wayne suggested if a company survives ten launches, their odds for survival improve greatly. Doug asked about fairing issues. Wayne talked about the ways that a fairing can open up and we talked about the recent Taurus failures due to fairing problems. Read the rest of the review @ www.thespaceshow.com.
Selected by: David Livingston [ stations ], Tue, 17 Nov 2015 16:25:38 UTC
Add this to another station Henry Kenyon, Sunday, 11-15-16 (78.60MB; download) -- Guest: Henry Kenyon. Topics: Hybrid airships for potential military and commercial markets plus more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed Henry Kenyon to the show to discuss the subject of hybrid airships. Mr. Kenyon wrote an article on this subject in the October issue of Aerospace America, a publication of AIAA. His article is titled "New life for an old hybrid (www.aerospaceamerica.org/Documents/Aerospace%20America%20PDFs%202015/October2015/AA_Oct2015.pdf. Scroll down until you come to the article of interest). In the first segment of our 85 minute program, Mr. Kenyon talked about modern airships, some of the differences from older style airships, plus he talked about different kinds of airships such as blimps, tethered vehicles, Dirigibles, Zeppelins and the hybrids, noting their differences from one to another. Mr. Kenyon then talked about the Lockheed experimental P-791 airship which is discussed at length in his article. He also has some very good pictures of the P-791 in the article. He talked about its hover ability, how it works, size, speed and cargo capability. We also learned that if fully loaded, it actually has to make a short take-off run to get off the ground. Mr. Kenyon noted the military uses for a modern airship, then we talked about commercial uses but as you will hear, the commercial side of the project seems to still be emerging. Henry was asked about UAVs as a competitor to airships. We also talked about the recent Raytheon tethered vehicle that broke away from the tether due to high winds. Our guest noted that the hybrid airship such as the experimental P-791 did not use a tether or mooring tower. A listener asked our guest about cybersecurity given it was part of his bio that I read as I as I introduced today's guest. We had a short but very interesting discussion on cybersecurity issues which you will not want to miss. Before the segment ended, we talked about the cargo capacity of the modern hybrid airship, comparing it to a large jet such as a C-130 or 747, plus cargo transport times, cost overruns, and technical problems still needing to be resolved. In the second segment, Henry told us the P-791 was on display at Palmdale, Ca. I changed the subject and asked him based on his expertise and observations again from his bio, what type of programs were most likely to be cut or eliminated by congress. You don't want to miss his analysis on this subject. Returning to airships, he was asked about the gas used for buoyancy. This led to a listener questions about why helium over other gasses. Our guest replied by talking about helium, hydrogen, and market concerns for helium as it is in limited supply since it is a naturally occurring element and not manmade. Several listeners asked him about the commercial potential, include general delivery of Fed Exp or UPS type packages. Read the rest of the summary @ www.thespaceshow.com
Selected by: David Livingston [ stations ], Mon, 16 Nov 2015 17:33:19 UTC
Add this to another station The John Batchelor Show "Hotel Mars," Wednesday, 11-11-15 (4.41MB; download) -- Guests: John Batchelor, Dr. David Brain, Dr. David Livingston. Topics: NASA's MAVEN findings on the Martian atmosphere. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Written Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. We do not permit the commercial use of any Space Show program or part thereof, nor do we permit Space Show programs to be edited, placed on YouTube, or other private channels & websites. Space Show programs can be quoted in news articles, papers, academic & research work but must be cited or referenced in the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce. This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program, www.johnbatchelorshow.com. Remember, your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm). For those of you listening to archives on live365.com & rating the programs, please email me the reasons for your rating. This will definitely help improve Space Show programming. Thank you. Please note that audio and transition issues are a result of copying the John Batchelor broadcast & are not within my control as they originate in the Batchelor studio. John Batchelor and I welcomed back Dr. David Brain who is part of the NASA MAVEN team to discuss the recent findings regarding the solar wind as causing the loss of the Martian atmosphere over billions of years. Dr. Brain discussed the findings for the Martian upper atmosphere, he explained the solar wind, the channel which most of the atmosphere seemed to use to disappear, plus he talked about the various stages and ages of the geologic history of Mars. We talked about the conditions needed for surface water, the early Martian history and its cooling which would cause it to lose its magnetic field in the first place. John asked several questions comparing the early history of Mars with Earth, especially regarding magnetic fields, the magnetosphere and shielding from the solar wind. I asked Dr. Brain to explain the solar wind so we would all know what the solar wind is and how it fluctuates. This is an information packed 11-12 minutes, don't miss it. Please post your comments/questions on The Space Show blog above. You can email the participants through me.
Selected by: David Livingston [ stations ], Thu, 12 Nov 2015 17:58:34 UTC
Add this to another station Dr. Charles Lurio, Tuesday, 11-10-15 (62.28MB; download) -- Guest: Dr. Charles Lurio. Topic: Commercial Space law updates, NASA, SLS, HSF, space leadership plus more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed back Dr. Charles Lurio for this comprehensive commercial space update plus Dr. Lurio took a hard look at human spaceflight. During the first segment of our nearly 1 hour 55 minute show, Charles started with the news that broke just before airtime that congress had approved the new commercial space legislation. The House and Senate compromised on the learning period extending it to 2023. Charles hit on some highlights of the bill but said he had not yet had time to read the final version since the news literally broke minutes before air time. Other first segment discussion topics included the return to flight for Falcon 9 and the Cygnus which will launch on an Atlas 5 until Antares has a return to flight sometime early next year. Charles talked about the new Russian rocket motor for Antares and its relationship to other major Russian rocket motors. Next, we talked about the NASA delay for the commercial cargo awards and their letter to Boeing saying that the cargo version of the CST 100 was no longer under consideration. Charles speculated that the delay might have been taken to allow for return to flight for the Falcon and for the Cygnus on the Atlas 5. Paul in NY emailed Charles asking for him to tell us his favorite commercial space company and his favorite NewSpace company. Charles said he loved SpaceX and commented on them moving the ground in the launch industry. He said he has always been a fan of XCOR and gave us some update at to the XCOR progress and challenges, especially in their wing production. Charles also said that the asteroid mining companies, particularly Deep Space Industries, were starting to attract foreign capital as he mentioned investment interest from the Czech Republic. I asked Charles if he was satisfied with the way the industry was developing so far. He said he was amazed with it and what has happened so far, but made the point that commercial space was far from being on easy street. He then explained his comments listing examples to support his comments. I asked him about the NASA Roadmap to Mars and he repeated back to me, you meant the "Jokemap" to Mars? That should provide you with a clue as to the rest of the discussion on this topic. Before the break, Don called from New Hampshire to talk about radiation, Brookhaven, and human spaceflight. Charles and Don talked about shielding, the lack of real quality experiments plus finding out answers to other needed questions for HSF BELO including life support systems, microgravity, plus lots more. Charles concluded that NASA was not serious about space, something many guests have said over and over again in recent years. Don said the system management was shortsighted. See the balance of the summary at www.thespaceshow.com.
Selected by: David Livingston [ stations ], Wed, 11 Nov 2015 17:23:06 UTC
Add this to another station Leonard David, Scott Sacknoff, Monday, 11-9-15 (46.61MB; download) -- Guests: Leonard David, Scott Sacknoff. Topics: The new book, "Space Careers" plus student guidance, space history. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed back Leonard David and for the first time Scott Sacknoff to the program to discuss their new book, "Space Careers." For more information, visit the book's website, www.spacebusiness.com/careers. Note that we did not take a break in our program so it is only one segment. Scott Sacknoff started us off with an overview of their book, why they wrote it and the history behind it given that it was originally written in 1998. It has been fully revised for the new edition. This book was a response to the many space industry job seekers along with high school and college students interested in a possible space career but without any resources to help guide them & navigate the expanding field of opportunities. The specific target market for the book is high school through those already in the industry wanting to change jobs or needing to move on from their current job to something else. The book contains key sections including how to interview, development of your resume, and more (see the website for details). Leaders from with in the industry offer guidance and wisdom and Scott referenced some of the contributors. The book also outlines scholarship opportunities and more. Several listeners emailed our guests with questions such as wanting to know if the book was designed to attract someone to the industry not already interested in space. Another listener wanted to know if global job opportunities were highlighted or if the book was only applicable for the United States. Our guests talked about making the book available to university resource centers and others in a position to guide and counsel students. Later, I asked Scott to compare and contrast the differences in the industry from 1998 when the book first appeared to today, 2015. This is an interesting compare and contrast discussion with our guests so don't miss it. In addition, our guests talked about why space businesses fail, then Helen wanted to know about gender differences in the industry from 1998 to today. You might be surprised by the answer to this question. We were going to take a break but I took a call instead from Dr. Bryan Laubscher. Bryan wanted to know more about why many new and young space companies fail. He specifically asked what one should look for, the telling signs. Scott and Leonard offered several pointers for Bryan and listeners to consider, then I chimed in regarding planning based on having interviewed many Space Show guests wanting to do something with the ISS and not having a Plan B for when the ISS is retired. Bryan then focused his questioning on the importance of high strength materials. I strongly recommend you listen to this discussion ... Please read the rest of the summary at www.thespaceshow.com
Selected by: David Livingston [ stations ], Tue, 10 Nov 2015 17:23:57 UTC
Add this to another station Open Lines, Sunday, 11-8-15 (57.57MB; download) -- Guest: Open Lines. Topics: We discussed multiple aerospace industry topics along with the possible impact of raising interest rates on NASA and the industry. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. Welcome to our 1 hour 55 minute Open Lines discussion. I started off the first segment with suggested show discussion topics, then John from Ft. Worth was our first caller to discuss the Don Nelson recent show and his idea for a fleet of modern private and commercial space shuttle freighters. John had some interesting things to say about this idea as well as potential market issues given Don wants his freighters to be privately built and operated. During the call with John, we talked about the possibility of the Federal Reserve raising interest rates and what that may mean for the space industry as well as other segments of our economy. Though the NASA part of the budget is small, it is visible and it could be adversely impacted by a rise in interest rates as more money will have to go to paying the interest on our national debt. Our next caller was Jeff from Tucson. Jeff pointed out large aerospace industry trends and addressed the recent NASA delay in commercial cargo awards though they told Boeing they were no longer under consideration with the CST100. Jeff also spoke about other projects with SpaceX, Orbital ATK, ULA and Aerojet Rocketdyne. He spent a good portion of his discussion time talking about problems facing Aerojet Rocketdyne, possible merger solutions and parts of the business which it may need to let go as compared to pursue and continue developing. In the second segment, Tim called in with questions about Maven and the recent announcement regarding the Martian atmosphere. Doug was our next caller. Doug is planning a debate at the upcoming ISDC meeting next year on cislunar plans starring himself with his plan and John Strickland with his plan. Doug talked about the differences between his position and John's, wanted to our thoughts on adding more people to the debate with their cislunar ideas, then I asked Doug what his expected outcome was for doing this. Don't miss what he said about his expectations. I told him I would be glad to do a Space Show debate with John and him as a "warmup" to the ISDC event. I hope that happens. Doug concluded his call saying he still hoped to call The Space Show while riding and trying to eat on the Gravitron at his local theme park while spinning at 24 rpms. If he manages to this, it should be an interesting call. Please post your comments/questions on The Space Show blog.
Selected by: David Livingston [ stations ], Mon, 09 Nov 2015 15:54:09 UTC
Add this to another station Dr. Doug Haynes, Friday, 11-6-15 (44.81MB; download) -- Guest: Dr. Doug Haynes. Topics: Blue Ridge Nebula Starline, Blue Ridge Airlines, Haynes Saucer, airline to Mars and more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed back to the show Dr. Doug Haynes for updates with his Haynes Saucer, Blue Ridge Nebula Starline, Blue Nebula company and his work to fly to Mars offering airline like service. During the first segment of our 1 hour 16 minute program, Doug went over the history of his aviation and space business development. He talked about Phase 1 in the 70s, Phase 2 in the 90s, and Phase 3 which is his current phase. He said his Haynes Saucer was certified by the FAA and the number was 7111NH. He also talked about his previous work with DARPA and composites. In response to a listener email, he said he currently had an experimental certification but would transfer to a regular certification soon. Jack asked him about visiting his facilities. Doug suggested attending his Open House programs which he holds a few times a year. He also talked about the potential of private visits to his Colorado facilities. I asked him about the size of his operations and how many people he employed. Doug listed the positions and team spots & said he was still growing. Terry asked him about his saucer propulsion. Doug said it had three different aspects to it but in general it was ion propulsion with constant 1 g acceleration using gravitics. He said his hover craft used tip drive. Later, I asked how he generated electricity for his saucer. Don't miss his response to this question. Shelly asked him about human medical factors such as microgravity, radiation, etc. He said he does not worry much about them due to his very fast transit times with his advanced gravitic propulsion. Again, don't miss his full response to this question. As for vehicle size, it is roughly 9 passengers or less with a crew size of 2, all in his ejection pod which you can see in the pictures on the website as a huge glass like bubble on the top of the saucer. In the second segment, he was asked about his pilots having space flight experience. He said this was not necessary given they are running an airline plus his very fast propulsion. Don't miss all of what he had to say on this. Clark in Chicago emailed in about the need for heavy lift re payloads & useful payloads to Mars. Read the rest of the summary @ www.thespaceshow.com.
Selected by: David Livingston [ stations ], Sat, 07 Nov 2015 17:04:12 UTC
Add this to another station The John Batchelor Show "Hotel Mars," Wednesday, 11-4-15 (5.78MB; download) -- Guests: John Batchelor, Dr. Ashwin Vasavada, Dr. David Livingston. Topics: Liquid flowing water on Mars and more. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Written Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. We do not permit the commercial use of any Space Show program or part thereof, nor do we permit Space Show programs to be edited, placed on YouTube, or other private channels & websites. Space Show programs can be quoted in news articles, papers, academic & research work but must be cited or referenced in the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce. This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program, www.johnbatchelorshow.com. Remember, your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm). For those of you listening to archives on live365.com & rating the programs, please email me the reasons for your rating. This will definitely help improve Space Show programming. Thank you. Please note that audio and transition issues are a result of copying the John Batchelor broadcast & are not within my control as they originate in the Batchelor studio. John Batchelor and I welcomed back Dr. Ashwin Vasavada to discuss NASAs recent announcement about flowing liquid water on Mars. We also talked about other locations for water on Mars including ice which could be converted to rocket fuel were there sufficient energy available for such a conversion by those on Mars wanting the fuel. Dr. Vasavada explained the liquid flowing water and answered questions about the Martian atmosphere. We also talked about Curiosity and its examination of the early Martian climate history through its work in Gale Crater. We talked about the possibility of finding signs of life. With respect to this question, our guest said that the odds for finding signs of life are improving all the time. They odds "keep going up." You can email Mr. Batchelor or Dr. Ashwin Vasavada through me at drspace@thespaceshow.com.
Selected by: David Livingston [ stations ], Thu, 05 Nov 2015 16:14:27 UTC
Add this to another station Don Nelson, Tuesday, 11-3-15 (46.01MB; download) -- Guest: Don Nelson. Topic: Development of a fleet of privately operated Commercial Space Shuttle Freighters (CSS Freighter) for commercial space, NASA & Air Force. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed Don Nelson back to the show for this 90 minute discussion regarding his Commercial Space Shuttle Freighter (CSS Freighter) concept. During the first segment, Don provided us with an overview of our current launch and human spaceflight situation, he talked about safety and reliability, then he started describing his CSS Freighter Concept. You can learn more about it at his website, www.spacetran21.org. He spent time explaining why wings were needed despite the common misconception that they become worthless mass in space. He said over and over again that if one does the trades, wings come out far better than carrying additional propellant for a vertical landing. He also said he was a strong proponent of full reusability, not just first stage reusability. In response to several questions, he said his CSS Freighter was modeled after the shuttle but with new upgrade designs and technology though to save money and reduce development time, the freighters were to be based on existing technology. He had much to say about the difficulty they had in upgrading space shuttle systems so this time around he said upgrades would be modular and as close to plug and play as possible. His idea is that the freighters will be built and operated by the private sector. He suggested the extensive use of composite materials to save on mass and to use reusable Space Shuttle Main Engines (SMEs). He referenced the Air Force X-37B program, he talked about the advance state of the thermal protection systems (TPS) for this top secret spacecraft suggesting it would be the TPS of choice for the freighters. Our guest was challenged in both segments regarding other reusability options including the advancement toward success represented by SpaceX and the Falcon 9. Don said it was first stage only, he was talking about full vehicle reusability and making the case for his approach with wings. Don't miss the challenges and the replies. Don also spelled out the advantages of horizontal as compared to vertical vehicle landing regarding reusability. In the second segment, BJohn asked about the Soviet version of the shuttle, the Buran. Don mostly talked about lessons learned by their not having a reusable space shuttle main engine (SME). Don was asked about international vehicle participation in his freighter project. He said not with this Congress and referenced our policy on not talking with China. Don was also asked for the rational for doing this and he focused on competition. Make sure you hear this discussion. He said he was including the Air Force in his plan given the rapid turnaround time for the vehicle (five days). Read the rest of the summary @ www.thespaceshow.com or http://thespaceshow.wordpress.com.
Selected by: David Livingston [ stations ], Wed, 04 Nov 2015 15:40:29 UTC
Add this to another station Joe Carroll, Monday, 11-2-15 (54.73MB; download) -- Guest: Joe Carroll. Topics: Artificial gravity, what's next for human spaceflight? Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed back to the program Joe Carroll to update us on his work with artificial and partial gravity, plus his thoughtful considerations for what comes next for human spaceflight. I have uploaded three papers of Joe to The Space Show blog for today's program. He does refer to these papers and presentations during the show so be sure to follow along by viewing them on the blog. During the first segment of our 1 hour 41 minute program, Joe said he preferred using the term partial gravity to artificial gravity. He talked 1 g issues, tests that can be done on the ground and the need to learn about gravity limitations for humans through ISS research. Centrifuge spin rates were a significant discussion topic in this segment. Here, he referred us to Appendix A page 8 for a two page discussion on early research on this subject. See his paper titled "Partial Gravity Biology Research Paper for Space 2015 Final" on TSS blog. Joe referred several times to the Twins & one year cosmonaut/astronaut study underway on the ISS, plus the Gemini 7 mission which answered several important microgravity questions. Later, Joe suggested we look at the chart on the third slide of his Power Point where he showed the gravity factor of major bodies in our solar system. This is an interesting discussion, don't miss it. It also pointed to the importance of knowing the gravity prescription for Moon-Mars as it covers most of the solar system gravity ranges. Doug sent in an email about spin rates as high as 24 rpm. Don't miss how Joe responded to Doug who then sent in a clarification email about upright exercise in a short-arm centrifuge. Again, don't miss Joe's reply. At this point, Joe started raising questions about why Mars, asking what were the economic reasons. He referenced our National Space Policy from 2010. Joe suggested the direction of the manned program was confusing at best. He talked about the remaining residual from the Apollo momentum and the Outer Space Treaty impact on future human spaceflight. BJohn emailed in about artificial gravity experiments with cubesats. In the second segment, Tim asked several questions including one about using weighted clothing to offset microgravity. The subject of radiation exposure came up and here, Joe talked about the side effects of "fixes" which may cause even more problems than just the original problem being mitigated. He again referenced the Twin and cosmonaut/astronaut studies on the ISS now underway. Doug called regarding my earlier comments where I reference a past show in which many listeners did not think we needed to know the gravity prescription. Read the rest of the summary at www.thespaceshow.com or http://thespaceshow.wordpress.com.
Selected by: David Livingston [ stations ], Tue, 03 Nov 2015 15:57:41 UTC
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