Dr. Dmitriy Tseliakhovich, Sunday, 6-9-13 June 10, 2013Posted by The Space Show in Uncategorized.
Tags: aerospace future., ascent trajectory, beam propulsion safety, beamed propulsion and weather, chemical rockets, crewed vehicle, DARPA, distance downrange from launch site, Dr. Dmitriy Tseliakhovich, electric grid, Escape Dynamics, ground stations, heat exchanger, ITAR, launch efficiency, LEO, mass fraction ratio, microwave beam, microwave propulsion technology, nuclear electric propulsion, ocean launch, payloads, Propellant Depots, robotic vehicle, space infrastructure, space weapons, spaceports, SSTO, wireless power transfer
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Dr. Dmitriy Tseliakhovich, Sunday, 6-9-13
Guest: Dr. Dmitriy Tseliakhovich. Topics: Escape Dynamics microwave beam propulsion for launches. 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.
We welcomed Dr. Dmitriy Tseliakhovich, CEO & CTO of Escape Dynamics (http://escapedynamics.com) to discuss their work on making microwave beamed propulsion possible for space launch. During our 1 hour 39 minute discussion, Dr. Tseliakhovich talked about his background and passion for space, including helping to open up commercial space. His work and experience led him to creating Escape Dynamics in 2010 to find a better and more efficient way to space than by using chemical rockets. Dmitriy then took us through many of the benefits of external launch, including a higher specific impulse, better payload ratios, and even the ability to use an SSTO frame for the vehicle. During this segment, we also talked about safety issues and using the possibility of using the technology as a space weapon. During this discussion, Dmitriy was very focused and precise in saying that their systems had to prove out as being safe on all of the issues we were discussing. Next, we learned that the initial beamed propulsion vehicles would be robotic but at some point in the future, eventually crewed launch vehicles would be possible. We talked about their step by step incremental development and testing plan, including starting with suborbital launches. I asked our guest about the probable cost of electricity and support from the existing electrical grid. Our guest had much to say about the cost of electricity, the use of the grid for their power needs & the capability of existing systems to support their needs. He also did not rule out partnerships with utility companies. Listeners sent him emails asking about competition and markets as well as the use of hydrogen for fuel. Our guest was also asked about their heat exchanger, a key component on the vehicle.
In our second segment, Dmitriy was asked about weather issues for launch & we learned that there were concerns and requirements suggesting launching in dry areas would be best. Another listener asked about ocean launch possibilities & Charles called in expressing skepticism, to support chemical rockets, and to raise questions about the high g force, boost stations, and the size of the ground array needed for the beam propulsion launch system. Roger emailed us to ask about orbital fuel depots & beamed propulsion. We then talked about the company timeline & learned about 2015 as a suborbital launch target date. In response to an email about the main challenges, our guest said the challenges to the system were mostly non-technical. John was our last caller asking about DARPA, project financing, fuels, and more. In closing we talked about available internships and the hiring opportunities at Escape Dynamics.
Please post your comments/questions on The Space Show blog. You can contact our guest through his website or by using firstname.lastname@example.org.
John Strickland, Monday, 3-19-13 March 20, 2013Posted by The Space Show in Uncategorized.
Tags: air breathing rockets, Base Load Barrier, China’s space policy., cislunar space transportation, cryo boil off, cryogenic cooling, cryogenic transfer, Earth-Moon L1 & L2, Falcon Heavy, ISDC, ISS, John Strickland, low cost space transportation, lunar base, lunar settlement, Mars HSF, National Space Society, NSS Roadmap, Propellant Depots, reusable launchers, SLS, space logistics, space settlement, space solar power, terrestrial power requirements, Texas spaceport, VAPAK.
John Strickland, Monday, 3-19-13
Guest: John Strickland. Topics: NSS, ISDC, space settlement, SSP, launcher reusability & 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.
We welcomed back John Strickland for this two hour discussion on a wide range of topics of interest to the NewSpace, commercial space, and space settlement audiences. John started out by talking about the upcoming NSS ISDC Conference in San Diego from May 23-27. For more information visit the NSS website, www.nss.org and click on the ISDC link. Some tracks are still open for submitting abstracts so if this interests you, click on the appropriate link at the ISDC site. During this part of our discussion, John talked about the NSS Roadmap and the planned coverage of it at ISDC 2013. John was then asked about the deep space commercial and Mars ventures announced in 2012 and so far this year. He said they were helpful to the overall space settlement agenda and explained how in his discussion comments. He added that the Mars missions and Golden Spike were “laudable” but suggested we may not be ready by the time the projects give for doing the venture. He later said he would have spent the money differently. Don’t his miss all his comments on these new commercial and HSF missions to Mars. Our conversation then focused on the problems of sequestration and then John talked about heavy lift and SLS. Our next discussion topic was Space Solar Power (SSP). Here, John took us through a detailed analysis of why terrestrial solar and wind is not the best way to go, then he went through some of the characteristics of SSP and why it is the preferred way to acquire much of our energy. This is a detailed and at times marginally complex discussion but one you will want to hear. In the end, he suggested we delay until we have the bigger launchers such as Falcon Heavy or bigger to make the launch component more economical. His analysis included total energy needs for a city, Texas, the U.S., globally, etc. It is a very instructive discussion. Near the end, he said we should not put all our eggs in one energy source basket. Listen to his solid explanation for this suggestion.
In our second segment, John talked about launcher reusability and more regarding SSP. He introduced us to space logistics, commercial docking with cargo to the ISS, & the need for reusable deliveries, thus the RLV. From here, he talked about fuel depots, mostly at Earth-Moon L1 and L2. He explained the boil off problem, the cryogenic transfer problem, and the need for good insulation plus a cryo cooler. Other issues in this segment addressed a lunar base, plausible time lines for accomplishing much of what our guest talked about, the Chinese space program and the complicated US-China relationship. Near the end, a listener asked about a possible Texas spaceport per suggestions of SpaceX. Tim called just before the end of the show to talk fuel depots, types of propellant for the depots and then he mentioned the VAPAK process (see http://ralph.open-aerospace.org/PDF/2009.04.14%20-%20HCG%20White%20Paper%20-%20VaPak%20Overview.pdf.)
If you have questions/comments, please post them on The Space Show blog. To contact John Strickland, send your email through me at email@example.com.
Jim Keravala, Shackleton Energy Co., Friday, 12-14-12 December 15, 2012Posted by The Space Show in Uncategorized.
Tags: benefit sharing, capital markets, Cislunar space, energy crisis, Geostationary, global economy, infrastructure investment, insitu resource usage, ISS, ITAR, Jim Keravala, Kessler limits, LEO, Moon, Propellant Depots, public/private partnerships, Shackleton Energy Company, Shackleton Energy timelines, Shackleton industrial astronauts, space debris, space finance, SSP, Surrey Satellite, technology transfer, U.S. economy, water ice at lunar poles
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Jim Keravala, Shackleton Energy Co., Friday, 12-14-12
Space Show Webinar with Dan Adamo, Dr. John Jurist, Sunday, 11-25-12 November 24, 2012Posted by The Space Show in Uncategorized.
Tags: antipode, BLEO, boiloff, capture, commercial space, cryogenic fuel transfer, Dan Adamo, Dr. John Jurist, EML1, EML2, Falcon Heavy, Flexible Path, flight trajectory analysis, HALO orbit, heavy lift, human spaceflight, INSITU Resource Utilization, Lagrange points, Lunar farside, lunar flyby, lunar space elevator., lunar water, Mars, Moon, Neo, orbital planning and analysis., Orion, payloads to LEO, Propellant Depots, SLS, Stepping Stones, Trans-lunar insertion
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Space Show Webinar with Dan Adamo, Dr. John Jurist, Sunday, 11-25-12
Video Stream: http://vimeo.com/channels/thespaceshow
Note that you must have the QuickTime player to play this movie if you intend to download it. You can watch it from the above URL without the QT player.
Dr. John Jurist, Webinar, Sunday, 10-28-12 October 29, 2012Posted by The Space Show in Uncategorized.
Tags: Dietrich Kolle, Dr. John Jurist, Falcon 9. , Falcon Heavy, Felix Baumgartner, heavy lift, Jurist MultiLaunch spreadsheet, launch costs, launch risks, Liberty Launch Vehicle, Lunar payload, Mars payload, Propellant Depots, rocket & mission analysis, rocket reusability, simultaneous launches, SLS, space mission planning. LEO payload, third party depot operations.
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Dr. John Jurist, Webinar, Sunday, 10-28-12
https://vimeo.com/channels/thespaceshow - Webinar Video
Guest: Dr. John Jurist. Topics: This webinar focused on rocket mission, planning, risk & cost analysis using copyright protected spread sheets created by Dr. Jurist. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, http://thespaceshow.wordpress.com. 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 using the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies. You can see the webinar at https://vimeo.com/channels/thespaceshow. We welcomed Dr. Jurist to this special two hour webinar on rocket mission, planning, risk, & cost analysis. Dr. Jurist developed a series of copyrighted spread sheets for this discussion. Callers had the opportunity to “massage” the numbers to see what happened with costs, success probabilities, & how many launches might be needed depending on the rocket being evaluated. We relied upon published data for all rocket systems discussed, even when only theoretical. Much of the discussion during this webinar focused on comparisons of Falcon 9, Falcon Heavy, SLS, and the Liberty Launch Vehicle. We also used a Falcon 1e as a baseline for comparison. Dr. Jurist and the callers planned missions to LEO and the ISS, the Moon, and Mars. We also looked at costs of total payloads delivered into LEO as a function of launch vehicle reliability and cost for multiple launches into the same position in LEO. Even with our two hour discussion, we did not get to cover several spreadsheet pages that rough out launch vehicle configurations and costs as a function of payload and total production runs. We will cover more of this material in the upcoming parts of this webinar series through early next year. Dr. Jurist addressed questions dealing with simultaneous launches and third party depot operations including fuel sales and space tug services. Some other subjects were also discussed in the webinar including the recent high altitude jump by Felix Baumgartner and combating the spin. We also talked about the recent statement made by Felix about not spending money on Mars missions in favor of saving the Earth.
Please post your comments & questions on The Space Show blog. Dr. Jurist and I will respond to your blog posts. If you want to talk to Dr. Jurist about his spreadsheet and your possible use for it, you can email him at firstname.lastname@example.org.
Classroom: Dr. Paul Spudis, Dr. Jim Vedda, Friday, 10-19-12 October 20, 2012Posted by The Space Show in Uncategorized.
Tags: Cislunar space development, Dr. Jim Vedda, Dr. Paul Spudis, EELV, Falcon Heavy, heavy lift, human spaceflight, infrastructure, INSITU Resource Utilization, international space cooperation, ISS, LEO, low lunar orbit, lunar ice, lunar poles, lunar water, Mars, Moon, NASA, on orbit construction, Propellant Depots, public/private partnerships, robotic lunar mining, sequestration, SLS, small business community, Space Show Classroom, species extinction, stunt space accomplishments, the railroad model, Vision for Space Exploration
Classroom: Dr. Paul Spudis, Dr. Jim Vedda, Friday, 10-19-12
Cislunar Space Development
Guests: CLASSROOM: Dr. Paul Spudis, Dr. Jim Vedda. Topics: Cislunar space development and economics. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blogs, http://thespaceshow.wordpress.com and the Classroom blog, http://spaceshowclassroom.wordpress.com. 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 using the proper citation format. Contact Dr. Livingston for questions about our copyright and trademark policies which we do enforce. For this Classroom Space Show two hour program, we welcomed Dr. Paul Spudis and Dr. Jim Vedda for a comprehensive discussion on the importance of undertaking Cislunar space development as a major focus of U.S. space policy. Our program was in two equal segments but since our topics crossed segments, our summary will reflect the entire program, not each segment. Also, at the end of this summary, I have listed several relevant URLs for cislunar space development and our guests. If you want more information on the subject, I suggest you visit the recommended websites and blogs. Our guests described cislunar space for us and did an excellent job in letting us know why it is important to focus on a cislunar space development program. In the process of addressing this very important issue, we talked about policy, the railroad model, the need for space infrastructure, insitu resource development and understanding, lunar water, lunar ice, lunar polar robotic exploration, the need to learn to live and behave in space, and much more. Listeners called and asked email questions that drew out both our panel members so that our discussion was sufficiently thorough. Side issues were discussed such as budget cuts, tight budgets, how to do cislunar space in a belt tightening environment, small businesses and contractors, even sequestration. Our guests were very clear as to why cislunar development was much more preferable than “space stunt accomplishment” types of programs and projects. Our guests presented a good case in letting us know why cislunar development is preferable over a humans to Mars mission at this time. Another issue brought up by a listener was to ask about “Plan B” if for some reason there was no water or there was insufficient water/ice on the Moon. Dr. Spudis explained why that was not likely but both panel members talked about why cislunar development was important to even without sufficient water/ice resources on the Moon. Here are the URLs of interest I mentioned above: First, Dr. Vedda’s new book, “Becoming Spacefarers: Rescuing America’s Space Program” is at www.amazon.com/Becoming-Spacefarers-James-A-Vedda/dp/1477130918/ref=onegiantlea20. The Paris conference mentioned by Dr. Spudis is the ASTECH’s “Developing Space” Conference is at www.d-space2012.com. Dr. Spudis websites and blogs can be found at www.spudislunarresources.com; www.spudislunarresources.com/blog; http://blogs.airspacemag.com/moon. His book, “Blogging the Moon” is at www.amazon.com/Blogging-Moon-Paul-D-Spudis/dp/1926837177/ref=onegiantlea20. Other related websites of interest include www.spaceref.com/news/viewpr.html?pid=13404; www.spaceref.com/news/viewsr.html?pid=19999; www.spudislunarresources.com/Papers/The%20Vision%20and%20the%20Mission.pdf.; www.cislunarnext.org.
Please post your comments/questions on the blogs above. If you want to contact either Dr. Vedda or Dr. Spudis, you can do so through me.
Open Lines, Sunday, 10-7-12 October 7, 2012Posted by The Space Show in Uncategorized.
Tags: " Rand Simberg, " SpaceX, astronaut safety, Cislunar economic development, escape and abort systems, Falcon 9. , Felix Baumgartner, heavy lift, ISS one year mission, lunar space elevator., Mars, NEOs, Open Lines with Dr. David Livingston, Propellant Depots, Red Bull, shuttle accident rate, Sir Richard Branson, SLS, space elevator, space mission value, space tourism, spaceflight liability and immunity laws, spaceflight safety
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Open Lines, Sunday, 10-7-12
Guest: Dr. David Livingston. Topics: Open Lines discussion on various space topics per the choice of the listeners calling today’s show. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, http://thespaceshow.wordpress.com. Comments, questions, and any discussion must be relevant and applicable to Space Show programming. 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. Welcome to today’s two hour 15 minute Open Lines discussion. The program was in three segments but as we focused on just a few topics for the entire discussion, this summary will not be divided by segments. I started the discussion by describing upcoming Space Show programs, then putting out a few discussion topics. As it turned out, the dominant topic discussed by the listeners had to do with astronaut safety and the recent program with guest Rand Simberg from Monday, Oct. 1, 2012. Rand talked about our being too risk averse, the need for more lives to be at risk to do valuable space missions, etc. You can hear his program at http://archived.thespaceshow.com/shows/1863-BWB-2012-10-01.mp3. Several callers took issue with much of what Rand said and for the most part thought that space missions were valued and that human spaceflight was already risky. Listeners went back and forth on this topic across all segments of the program, talking about shuttle accident rates, proposed accident rates for Constellation, Orion, Dragon, and more. Some listeners even talked about aviation safety rates, military jets, and the track records of the Atlas 5, Delta IV, and Arianne V rockets. For part of this discussion, we also talked about the liability limitation laws passed in spaceport states including California which recently signed into law its version of law. We talked about what this might mean for the industry, for spaceflight participants, and even if the would hold up in an accident.
As part of the HSF safety discussions, we also talked about launch abort and escape systems. We took a call at the first of the second segment from Charles in Oregon who wanted to talk about the lunar space elevator, SLS and propellant depots, our second most talked about topic for the day. Charles is a strong proponent of the lunar space elevator and depots, but others called in from the skeptical side of things which was my position. At times the discussion switched to the space elevator here on Earth but everybody agreed that the lunar space elevator was much more doable. I kept challenging Charles and proponents of this and the depots to show me the complete and thorough financial analysis and trades for these missions with assumptions as that would be the only way to know if these concepts had legs to stand on. If Charles does get me some of this documentation and its viable, I will use it in a future Space Show program. Tim in Huntsville wanted to know my thoughts on various alternative launch systems & my preferences for which type of space missions. There were other topics scattered throughout our program including the 23 mile skydive by Felix Baumgartner with Red Bull scheduled for Oct. 8th, fusion propulsion, and the SpaceX launch going to the ISS later today.
Open Lines, Tuesday, 8-21-12 August 22, 2012Posted by The Space Show in Uncategorized.
Tags: " SpaceX, "How To Be A Rocket Scientist, "NASA And We Know It.", Art Dula, Curiosity, Dr. Robert (Bob) Zubrin, Elon Musk, Falcon Heavy, heavy lift, JPL, Mars program, Mars Society, Megantic Observatory, NANOSAT Challenge, nuclear rocket propulsion, Open Lines, Outer Space Treaty, presidential space policy, Propellant Depots, sequestration, SLS, space policy leadership, STEM outreach
Open Lines, Tuesday, 8-21-12