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Greg Meholic, Friday, 6-5-15 June 6, 2015

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Greg Meholic, Friday, 6-5-15

http://archived.thespaceshow.com/shows/2487-BWB-2015-06-05.mp3

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Guest:  Greg Meholic.  Topics:  Advanced propulsion concepts and more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 Greg Meholic to speak about advanced propulsion concepts, rocket reusability, and much more.  During the first segment of our 84 minute program, Mr. Meholic first defined what he meant by the term advanced propulsion.  Given this definition, we moved forward to discuss various concepts, propulsion methods, and propulsion research. During this segment, we talked about several propulsion technologies and Greg said thumbs up or thumbs down to their being advanced propulsion.  When it came to nuclear, Greg classified it as an alternative propulsion method, not an advanced propulsion.  Again, don’t miss his definition.  We talked near and intermediate term advanced propulsion concepts though it does not appear anything is really close at hand.  His timeline for a possible advanced propulsion technology was around 20 years.  He said not only do we need to understand the physics much better,  but the propulsion method much compete with current systems and produce benefits including cost benefits.  As far as choke points on advanced propulsion, he said understanding the fundamental physics involved was a big one.  We then talked about funding which is now mostly from companies and other private investor oriented sources.  I asked lots of questions about funding, especially how does one know when the point is reached to either kill the project or keep it going.  Don’t miss what he said about this.  Listeners also asked many questions.  In replying to one listener, he said it would be hard to beat chemical rockets to LEO but the door opens up BLEO though the Moon can be done with chemical rockets.  When asked about the anti-nuke movement and the impact on the nuclear rocket, he had some interesting observations, especially regarding the views of younger people.  When asked for leading advanced propulsion people and concepts, he mentioned former Space Show guest Dr. James Woodward and his work with Mach’s Principle several times during our show.  Greg was also asked about the work of Dr. Sonny White at JSC for warp drive and M drive.  Greg had much to say about his work including Q thruster and M drive.  John from Ft. Worth called in to talk about M Drive & Mach’s Principle along with gravity and magnetic frequencies.

In the second segment, Ashley sent in an email asking about going to the Moon and Mars for settlement and sustainability, wondering if advanced propulsion was needed for either location.  You might be surprised by Greg’s response to this question so listen carefully.  He did say there would be different requirements for the Moon and Mars.  With Mars, he also spoke about radiation and travel times.  Greg then had some things to say about artificial gravity.  One of his comments was that if we understood more of the physics, an eventual advanced propulsion system might enable an artificial gravity system without spinning or the need for tethers.  Brad in Tucson sent in a note asking about reusable first stage rocket launch systems.  Greg was delighted with the question as he works on such systems in his day job and he had much to say and offer about reusable first stage rockets.  He went through a brief summary of some of his work plus those attempting to design such systems including SpaceX.  I asked about a payload penalty with reusability.  Don’t miss his answer.  Our next caller was Marshall and he took us back to the artificial gravity discussion.  Marshal was asking questions about the amount of time spent in 1g as opposed to various fractional gravity loads.  As the program was ending, Greg received the final question which dealt with comparing the quality of government research to private sector research.  He reminded the listener that there very little to no government research funding for advanced propulsion, that it was almost all private sector funding.  He said the private funding was investor based so it comes with a commercial profit focus.

Please post your comments on The Space Show blog above.  Greg Meholic can be reached through me using drspace@thespaceshow.com.

Dr. John Jurist Webinar, Sunday, 4-26-15 April 25, 2015

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                Dr. John Jurist Webinar, Sunday, 4-26-15

Selecting The Rocket Motor, Fuel, & Trade To Optimize The Mission

http://archived.thespaceshow.com/shows/2461-BWB-2015-04-26.mp3- audio

https://vimeo.com/126223310– Webinar video

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Guest:  Dr. John Jurist.  Topics:  Choices and consideration in configuring launch systems.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 this two hour webinar regarding the choices and considerations that can be made in designing and configuring launch systems.  TO VIEW THE WEBINAR VERSION OFTHIS PROGRAM, GO TO https://vimeo.com/126223310.   Note that on the blog for this program are two Power Point presentations for your use.  Dr. Jurist referred to both of them during the webinar, especially the presentation titled “Choices: Some Considerations in Configuring Launch Systems.”  I urge you to follow along with them during the webinar.  During the first segment, Dr. Jurist explained the target market for the webinar and his two presentations.  He then talked about how hard it was to go to Mars and do other missions.  Then he got to the point by saying in designing or configuring the launch system for a mission, you started with the payload requirements which then provide additional constraints once the payload has been defined.  He also talked about the application of the basic rocket equation and explained the importance of exhaust velocity, the Delta-v, and the mass ratio.  Listeners started asking questions so two stage compared to single stage was discussed.  John pointed to the Choices presentation, slide 8.  He talked about propellant and pressures, both in a pressure fed system and with a turbo pump system.  Another listener asked about solids versus liquids, then Marshall called to talk about rocket g forces.  Dr. Jurist talked about designing the rocket envelope environment to the payload specifications.  He then brought in and discussed the vibration envelope.  Helen asked how things would be different with a human payload rather than a satellite or cargo.  Reliability was a big concern.  Near the end of the segment, Dr. Jurist talked about payload mass in Leo and BLEO.  Doug inquired about the gravity loss during the launch, then the segment ended talking about heavy lift, solids and proportional cost factors for SRBs.

 

In the second segment,  Penny asked how the variable that had been discussed would change were one launch from the Moon or Mars.  Adrian emailed in about the NERVA rocket and nuclear propulsion.  Dr. Jurist used the German V2 as an example of launching from the Moon.  Specific impulse and exhaust velocity came up again, then the focus turned to rocket motor cooling systems.  Questions continued coming in asking about 3D printing of rocket motor parts to lower the cost and the use of hybrid rocket fuels with their advantages and disadvantages.  Regulatory issues came up in this segment as did political issues, plus our guest got a question about amateur rocketry.  A listener asked about environmental concerns over rocket fuel . Dr. Jurist directed the audience to the Choice presentation, slide 22, and talked about ways to possibly shed some weight such as dumping the payload shroud.  Near the end, John got questions about the Falcon Heavy, Doug called in with questions about lunar lander economics and more.  In closing, Dr. Jurist said “the fundamental theme of the presentation was the many variables that come into play in designing or configuring a space launch system, how the many variables are inter-related, and how every decision in the process constrains or narrows the remaining options.”

 

Please post your comments/questions on The Space Show blog above.  You can contact Dr. Jurist through me.

                                                       Choices

                                   Launch Vehicle Business Workshop

Paul Turner, Tuesday, 1-6-15 January 7, 2015

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Paul Turner, Tuesday, 1-6-15

http://archived.thespaceshow.com/shows/2388-BWB-2015-01-06.mp3

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Guest:  Paul Turner.  Topics:  Paul Turner talks about his book “The Space Trade” and how to develop real estate in orbit.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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 Paul Turner to the show to discuss his new book “The Space Trade” and his concept for developing orbital real estate for profit. Visit his website for more information, http://www.thespacetrade.com.  In the first segment of our 1 hour 55 minute show, Paul introduced us to The Space Trade idea.  He first described what the mature space trade industry would look like, then he talked about how to develop a space trade.  He suggested the space trade would likely start with asteroid mining and he referenced Planetary Resources multiple times during our discussion.  He also mentioned the need for an orbital transfer vehicle and a spin ship which he described later in the discussion.  He talked about mining water and bring it back to LEO.  He recalled he had seen a suggested price for water at $50 million/ton in LEO which he said was on the Planetary Resources website at one time.  Later in the segment, this price was disputed by several listeners.  Listeners asked questions about the potential profitability of the space trade early stage since Paul thought it might not be profitable at the start.  Another early industry suggested by Paul was the servicing and refueling of satellites.  Joe then asked if a proof of concept could be applied to capturing small asteroids near Earth and bringing them back to Earth targeting their re-entry to land in Australia somewhere.  Paul said it was possible and it was important to have a proof of concept for people to see. John from Ft. Worth called to inquire about space manufacturing.  Paul had much to say about this part of his concept.

In the second segment, a listener asked about property rights and the national as well as international legal regime to make possible the space trade.  JP emailed in about manned vs. unmanned asteroid mining.  Benny asked Paul to describe a spin ship.  Later Robert inquired if lunar development might be the starting point for the space trade industry rather than asteroid mining. Listeners asked Paul many other questions including one about why establishing a space trade was important.  Paul referred us to chapter 12.1 of his book but he did mention a few of the reasons.  Later, he talked about the Carrington Event. I asked him what our TRL was for getting the space trade going and he said we could start today.  Don’t miss what he had to say about this.  In closing comments, he advocated doing something rather than just talking about it.  Pooley then called to talk about DIY space plus they discussed the old Conestoga project and JP emailed in on that as well.

Please post your comments/questions on TSS blog.  You can reach Paul Turner through me.

Open Lines, Sunday, 12-14-14 December 15, 2014

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Open Lines, Sunday, 12-14-14

http://archived.thespaceshow.com/shows/2375-BWB-2014-12-14.mp3

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Tags:  Open Lines with Dr. David Livingston.  Topics:  NASA Orion/SLS budget, Lunar Orbital Station, backing up Earth’s species and more.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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 Open Lines discussion program.  During the first segment of our 2 hour 7 minute program, I started the discussion with a few suggested topics and program announcements.  The only suggested topic that had anything like legs was the 19% budget increase for SLS/Orion in the new FY 15 spending bill just passed by Congress.  BJohn sent in an email asking about a possible Lunar Orbital Station, maybe with Orion, in lieu of the ARM.  Next, Doug called in from S. California to promote the concept of Bio Preserve, backing up Earth’s species.  He talked about the need for this and why and how it might be done.  I suggested he check out the Lifeboat Foundation as they have something of a similar plan though its not identical to what Doug was talking about.  I did ask Doug how such a backup plan would be paid for and like most good ideas, paying for them presents challenges though Doug had decent suggestions.  Brett then called in to talk about his online book, “How To Be A Rocket Scientist.”  Get more information about the book and the ten tips that we talked about by visiting his website, http://www.howtobearocketscientist.com.  He said the book is aimed at the high school audience but he has been hearing from adults and college students who also find the book valuable.  We highlighted a few of his ten tips for discussion.

In the second segment, SLS John called re the NASA budget and said there was plenty of money and the funding increase for SLS/Orion put us on the right path.  John continued to make the case that SLS/Orion is our best chance to avoid being stuck in LEO.  I asked him about commercial space options and he said continuing with SLS/Orion does not prevent the commercial industry from following its own path.  Doug sent in a few emails to John about his comments including one saying that continuing with SLS/Orion blocks the possibility of public/private partnerships.  I challenged Doug’s comment on this because it assumes that monies saved by not having an SLS/Orion program would be used on Doug’s chosen space projects.  In fact Doug did say that we need to better spend tax payer money. While we can all agree with that, the best use of taxpayer money is clearly subjective and would depend on who you were talking with about the use of the money.  Marshall called next to inquire about an update show on space solar power.  I told him I would attempt to get a quality and realistic guest on the program early in the new year.  We then heard from Charles Pooley.  Charles talked about the first year anniversary of his first Microlaunchers book, book two which is in progress and plans for book three.  He also said he was interested in the NASA Challenge dealing with laser communications from space.  Also during the show I went over the final end of the year schedule and the plan to play archived end of the report program with Tom Olson as I did last year leading up to our live program with Tom for end of the year on Dec. 30.  I also pointed out that we would have one more Open Lines program this year on Sunday, Dec. 28.

Please post your comments/questions on TSS blog above.  You can reach any of the callers or email participants through me.

Dr. Henry Lambright, Monday, 7-7-14 July 8, 2014

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Dr. Henry Lambright, Monday, 7-7-14

http://archived.thespaceshow.com/shows/2274-BWB-2014-07-07.mp3

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Guest:  Dr. Henry Lambright.   Topics: Dr. Lambright’s book “Why Mars” & the politics, policy, history, & methodology of our Mars program.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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 Professor Henry Lambright of Syracuse University to the show to discuss his excellent book “Why Mars: NASA and the Politics of Space Exploration.”  During the first segment of this 1 hour 33 minute program, Dr. Lambright introduced us to his book and what prompted him to write it.  Dr. Lambright then described three main motivating factors for having our Mars program starting with before NASA with the belief and cultural components suggesting some sort of life on Mars.  Next as a motivating factor dating back from the Von Braun time frame of humans going to Mars.  His third motivating factor had to do with political issues and competition.  Since we were talking about the possibilities of life on Mars, I asked our guest about Viking and the more recent pronouncements by Dr. Gil Levin who has been on TSS several times over the past few years.  Later, Dr. Lambright had many good things to say about our science and robotic program but said our human spaceflight program was in disarray.  Dr. Lambright got several listener emails & phone calls.  He was asked for the WHY behind human spaceflight and that led to a discussion about Big Science. I asked him to define Big Science which he did.  We talked about the NRC Pathways HSF study, then our guest talked about triggers leading to big events and progress, plus the more typical method of moving forward which he called slow evolution.

Jumping forward to our second segment, we talked about the Clinton years in the 90s for policy, Mars Observer & how that loss was turned into a plus for our Mars policy.  Other topics included astronaut risk taking, the void in leadership for space, Mars, and things in general.  Doug called to consolidate all the motivating factors and issues to just one, the need for more money.  He made a good case for this consolidation.  We also talked about the challenges for getting alternative theories seriously considered by NASA, Congress, and policy makers.  The NASA to NACA suggestion came up, we talked about the privates taking over LEO with NASA focusing on BLEO & advanced technologies.  As the program was ending, I asked our guest about the Syracuse student interest in space and Mars, plus our guest left us with an important closing comment.

Please post your comments/questions on TSS blog. If you want to reach Dr. Lambright, you can do so through me.  Finally, if you buy his book from Amazon, do so through the OGLF Amazon portal so that Amazon will contribute to The Space Show.  Instructions are in each archive write up and on the blog, plus both The Space Show and OGLF websites.

Dr. Brian Laubscher, Sunday, 6-8-14 June 9, 2014

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Dr. Brian Laubscher, Sunday, 6-8-14

http://archived.thespaceshow.com/shows/2258-BWB-2014-06-08.mp3

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Guest:  Dr. Bryan Laubscher.  Topics:  Carbon nanotubes, new manufacturing, Space Elevator.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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 Dr. Bryn Laubscher back to the program for our 2 hour 22 minute discussion about carbon nanotubes and the Space Elevator.  During our first segment, Dr. Laubscher talked about carbon nanotubes, the manufacturing process, how to move the process and technology forward, end uses for the product, possible timelines for advancement and the current day use of Chemical Vapor Deposition (CVD) in the process.  Bryan talked about the need to find a better process for making carbon nanotubes than CVD.  Later is this segment, Dr. Laubscher was asked about the potential relationship to space other than with the space elevator.  This was an interesting discussion , don’t miss it.

In our second segment, Bryan talked about how hard and challenging the space elevator was and later in the segment, due to a call from Pooley, we went through many of the top challenges faced by the elevator with a status report on each one.  As this segment was opening, I did ask Bryan for a time line for space elevator advancement.  Our guest suggested that at some point, there would be significant demand for the elevator.  Next, we talked about the upcoming International Space Elevator 2014 Conference to be held at the Museum of Flight in Seattle, August 22-24, 2014.  For conference info, visit http://www.spaceelevatorconference.org. John from Ft. Worth called to talk about materials, composites and much more. We also talked about the strength needed for the elevator ribbon and John asked about SSTO.  Blaze emailed us about nuclear waste and Bryan had an interesting take on it. This was another valuable discussion, don’t miss it.  Dr. Laubscher talked about ribbon length, characteristics, strength needed, and its location in space, plus the counter weights it would need.  Adrian emailed several questions to us about the ribbon breaking and related issues.  He also asked our guest radiation issues.  Doug emailed about ways to climb up and down the ribbon.  Some of the other issues that came up were wind, lightening, ribbon oscillation, space debris, policy & regulatory issues.  As our program was ending, Bryan offered us words of wisdom and said his company website was http://www.odysseustech.com.  In addition, Dr. Peter Swan emailed us about his paper on the elevator which you can download and read at  http://www.virginiaedition.com/media/spaceelevators.pdf.

Post your comments/questions on TSS blog.  You can reach Dr. Laubscher through his website or me.

Clay Mowry, Tuesday, 6-3-14 June 4, 2014

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Clay Mowry, Tuesday, 6-3-14

http://archived.thespaceshow.com/shows/2255-BWB-2014-06-03.mp3

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Guest:  Clayton (Clay) Mowry.  Topics:  Arianespace, launch industry, reusability, launch price and satellite capacity.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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 Clay Mowry to the program to discuss Arianespace and the launcher industry.  During the first segment of our 90 minute discussion, we took on the subject of the upcoming last EASA ATV 5 flight to the ISS.  Mr. Mowry explained why this program to the ISS was ending and that after this last flight, there would be only one vehicle capable of boosting the ISS.  He talked about U.S. priorities in building up cargo capability to the ISS without boost capability over commercial crew.  We also talked about the life expectancy of the ISS amid the current controversies with Russia and the US.  I asked Clay for a brief history of the launcher Ariane 5 and we learned that they now have 59 successful launches for this rocket.  Our guest talked about Ariane 5 performance capabilities plus upgrades that are in progress for an Ariane 5 ME.  We talked about launch price/cost and its relationship to how customers determine what launcher to use.  As he said the last time he was on the show, customers need launcher reliability and the ability to launch on schedule.  Launch costs are an overall factor of the total risk of the launcher, the value of the satellite, opportunity costs, infrastructure costs, and more.  This is a very informative discussion and it continued into the second segment.  Our guest also said that human spaceflight poses different issues than launching telecommunications satellites and is more sensitive to launch costs.  Listeners asked about government subsidies to Arianespace and their not turning a profit despite their commercial success. This opened up a discussion about all forms of government subsidies, including the methods used in the U.S. to subsidize and support our launcher industry.  We talked about the planned new Ariane 6 rocket and its differences with Ariane 5.  We also talked about rocket development time lines.  Rocket reusability came up and this proved to be a great discussion topic that continued into the second segment.  Clay provided us with very important perspectives regarding reusability.  Dr. Jurist called to go deeper into the issue of launch pricing, insurance, and related items. Don’t miss it.  Clay referenced several studies on this subject including the Futron NASA Ascent Study which examined launch costs among other things.  Our guest talked about ways the satellite industry is working to reduce launch costs by making satellites more powerful and lighter.  They are also starting to use ion propulsion which can cut up to 40% of the mass of the satellite which makes launches lower in cost. With more efficient satellites, longer life spans, and other advancements, its possible to see launch cost improvements up to around 20%.

In the second segment, I asked Clay what it would take to human rate the Ariane 5.  After he explained the requirements, he said their company focus was on satellites.  He mentioned Liberty Rocket, then John from Ft. Worth called in to talk about costs, depots, reusability, & just how many flights can a reusable rocket make, plus insurance risk evaluation for reusability.  Clay talked about reusability economics and risks in depth in this segment, explaining the variables and unknowns. This is an important discussion so don’t miss it.  Later by email, Jim asked about increased satellite efficiency & advanced capabilities lowering the launch rate.  Clay did not think so due to content advances and increases that offset the satellite advancements.  Again, another important discussion topic. In fact, we spent most of the balance of the program on this subject.  In concluding, Clay said the business was even more exciting today than when he joined the industry and later Arianespace.  The final listener comment asked about the launchers being the unsung heroes of our modern society.  Clay summarized that reusability had many market, technical, & economic unknowns, that HSF probably was better suited for it than satellites, & that commercial communication satellite customers need reliability & on time launches as part of their business models.

Post your comments/questions on TSS blog.  You can reach Clay Mowry through me.

 

Mark Fisher, Friday, 5-16-14 May 17, 2014

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Mark Fisher, Friday, 5-16-14

http://archived.thespaceshow.com/shows/2244-BWB-2014-05-16.mp3

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Guest:  Mark Fisher.  Topic:  Commercial & Civil space, Schafer Corp space activities, space exploration/development.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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 Mark Fisher, VP, General Manager & Director of Huntsville Operations for Schafer Corporation (www.schafercorp.com.  During the first segment of our 1 hour 25 minute discussion, Mark Fisher introduced us to the Schafer Corporation which has in excess of 40 years experience and activity in the civil, commercial, DOD, & the government space industry.  We honed in on civil and commercial and Mark talked about Bigelow Aerospace, Stratolaunch, the entrepreneurial community, and NewSpace.  This discussion took us to new technologies and here Mark said that NewSpace was providing lots of new technology.  We also talked about human spaceflight and its growth, particularly on the NewSpace side of things.  Listener Jack emailed in a question about the wisdom of international partnerships to which Mark had much to say.  I asked our guest about overlapping areas with DOD & commercial space, then about pursuing ROIs from space activities & projects & if that was a big switch from just a decade ago.  That brought up a discussion about business models and the role Schafer plays with clients in business as well as with engineering as Schafer is an engineering company.  One point made continuously by our guest was that space investment leads to results but its an ebb & flow over the long haul.  We talked about space technology, computer, and electronic advances, plus changes over time in materials and optics.  The subject of launch vehicles & the industry came up, especially with cubesats, SpaceX & Orbital.  Pooley called in to talk once again about small launchers & Microlaunchers.  At one point he commented that Leo, being too crowded, should be abandoned for escape orbital opportunities.  Both Mark & I had some interesting comments per what Charles was talking about.

In the second segment we talked about the U.S. capability to build new launchers & engines but we also talked about the high costs and long development & testing time in doing so.  Mark shared with us his rocket motor development experience.  We talked about Mark’s Schafer team, the development of an internship program at Schafer, and Shafer employment opportunities.  A listener asked about difference in approach to the public, civil, & commercial side of space projects & the need for commercial to fund itself.  We talked about wireless medial monitoring, miniaturization, & other space spinoff technologies.  Much was said about the biomedical push by NASA.  I asked about the once robust Huntsville space economy which has had some issues in recent years. An inquiry was made about DOD, Mars technology development, sharing tools with NASA, and if we needed to make weapons to advance technology.

Please post your comments/questions on TSS blog. If you want to contact our guest, you can do so through me.

Dr. Clay Moltz, Friday, 4-11-14 April 12, 2014

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Dr. Clay Moltz, Friday, 4-11-14

http://archived.thespaceshow.com/shows/2226-BWB-2014-04-11.mp3

Your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm)

If you are listening to archives & rating programs on live365.com, email me the reasons for your rating to help improve the show.

Guest:  Dr. Clay Moltz.  Topics: We discussed our guest’s new book, “Crowded Orbits: Conflict and Cooperation in Space,” plus numerous related topics.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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 http://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. Clay Moltz to the show to discuss his new book “Crowded Orbits: Conflict and Cooperation in Space.”  Please remember to buy this book through the OGLF/The Space Show Amazon portal so Amazon will contribute to The Space Show.  Our Amazon instructions are in every archive summary and on each Space Show blog entry.  During the first segment of our 90 minute discussion, Dr. Moltz told us why he wrote the book which was to address orbital crowding, possible conflict in space and to bring these issues and others to the attention of the general public as space impacts everyone everyday.  A major topic for our discussion was space debris.  Using this field as an example, Dr. Moltz  made a very strong case for rules of the road, space traffic control issues, and responsible behavior by both governments and the private sector.  We talked about entrepreneurs and private groups resisting a more regulated environment and he made the case for the need for cooperation to avoid conflicts.  Early in his book, he outlined three significant points of view regarding the debate over space policy, ranging from conflict & the military use of space was inevitable so prepare for it to avoiding problems by piecemeal global engagement to increasing the use of international space projects through international governance.  Dr. Moltz received many email questions challenging a regulated environment and the need for more controls on space businesses and operations.  We talked about the cubesat technology and growth of the industry, the lack of registration, & as the industry grows, possible crowding problems.  We also discussed the U.N. treaties that seem to cover what we were talking about so why the need for more agreements & regulations?

In our second segment, we continued our human spaceflight discussion from the end of the first segment, plus we looked at space in other countries.  We mostly focused on China, India, Iran, and North Korea among others.  We talked about large scale industries that may develop over time such as SSP.  GPS was an example, then a listener asked about cyberwarfare & the impact on space policy.  Toward the end of the program, I asked about space interest among students at the Naval Postgraduate School. Students are very interested space and the subjects discussed in Clay’s book and on today’s show.

Please post your comments/questions on TSS blog.  You can reach Dr. Moltz through me.

Dr. Doug Plata, Sunday, 3-16-14 March 17, 2014

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Dr. Doug Plata, Sunday, 3-16-14

http://archived.thespaceshow.com/shows/2208-BWB-2014-03-16.mp3

Your Amazon Purchases Can Help Support The Space Show/OGLF (www.onegiantleapfoundation.org/amazon.htm)

If you are listening to archives & rating programs on live365.com,  email me the reasons for your rating to help improve the show.

Guest:  Dr. Doug Plata.  Topics:  Selected trades for the Cis-Lunar One Transportation Architecture as developed by Dr. Plata.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://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. 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. Doug Plata to the show to discuss his selected trades for his Cis-Lunar One Transportation Architecture.  You can find Doug’s Choices of Selected Trades document on The Space Show blog at https://thespaceshow.wordpress.com under the summary for this particular program and date.  In the first segment of our 2 hour 6 minute discussion, Dr. Plata started out giving us an overview of his project, mostly by reading to us the “Overview of the Cis-lunar One Architecture” which is part of his document on our blog.  In addition, Dr. Plata wants your feedback regarding his project, including constructive criticism.  You can email Dr. Plata at dougspace007@gmail.com.  After discussing the project overview with us, Doug started addressing the trades listed in his document.  We started with Trade 1 Launcher.  Doug went through all of his considerations for launchers, was clear that he was not ruling any particular rocket out of the question.  Make sure you note his “Table1: Choice of Launcher & Fuel.”  The led us to discussing payload issues for the mission.  Also note that Doug has named his lunar craft the Condor upper state LL as you will see that name show up throughout our discussion.  Doug then went to Trade #2 and discussed propellant choices.  Note his Table showing the specifics of his Choice of Fuels assuming 53 tons at LEO and a 15% dry mass.  He received several listener questions, including questions about where to on the Moon.  See Trade 8 Initial Landing Sites for his choices and reasoning.  We skipped to Trade 12 Power in Shadows.  He discussed power options in some detail and went through the four options listed in this trade.  Mary Beth sent in some questions asking Doug about his propulsion discussion and Marshall called in with a series of questions about ice and the regolith.  Doug then took us to Trade 17 Repairs.

In our second segment, Doug started with Trade 17 repairs, focusing on redundancy, spare parts, & surface equipment easy designs.  Later in the segment, Dr. Plata was asked about lunar dust and maintenance/problems for the equipment.  A listener emailed him about market possibilities, our guest fielded other listener email questions and then Doug addressed Trade 9 Landed Configurations including belly landings and tail landings. Trade 14 Surface Equipment was discussed, then John called in to talk about a needed detailed lunar surface survey.  I asked our guest for his detailed cost projections for his mission followed by his next step in promoting his architecture.  He talked about having called his Congressman, Representative Mark Takano.

Please post comments/questions/feedback on TSS blog per above.  You can also email Dr. Plata at his above email address, plus its on his trade document which is on TSS blog.

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