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Dr. Jim Dewar, Sunday, 12-6-15 December 7, 2015

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Dr. Jim Dewar, Sunday, 12-6-15

http://archived.thespaceshow.com/shows/2598-BWB-2015-12-06.mp3

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Please download and read Dr. Dewar’s paper here:  a-technical-note-on-nuclear-rockets-1-2

Guest:  Dr. James (Jim) Dewar.  Topics:  The nuclear rocket, changing the paradigm to use it for economic growth to LEO.  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 Dr. Jim Dewar to the show to discuss his plans for the use of nuclear rockets specifically from Earth to LEO.  In addition, Jim’s book (it is out of print) “The Nuclear Rocket: Making Our Planet Green, Peaceful And Prosperous” is being made available as a Space Show fundraiser and we thank Jim for this great gift.  You can get a new paperback autographed copy of this book for a $50 contribution to The Space Show.  Please make your contribution using Pay Pal on TSS or OGLF websites or mail a check to TSS as instructed on the donation page of the websites.  Also, send me an email telling me your $50 contribution is for Jim’s book, provide your full name and your mailing address.  I need this email to know you want the book in exchange for your donation.  As of the time I am archiving this show, I have only ten remaining copies of the book to give away so act fast as once they are gone, this offer ends.  During the first segment of our two hour show, Dr. Dewar outlined his plan to break the nuclear rocket ban on using a nuclear rocket from Earth to LEO.  Jim spent some time explaining the history behind this ban which is not law!  The ban came to be in 1960 as a result of a luncheon meeting.  Listen to his telling of this story.  Do you find all of this frustrating?  I asked Jim how nuclear propulsion would work from Earth to LEO.  As you will hear, he said it was applicable to second or third stages on the rocket, not the first stage of the rocket.  He explains this in detail so don’t miss it.  Most of the first segment was devoted to discussing this ban, the early nuclear rocket history and tests, questions about the Soviet Union nuclear rocket program, the U.S. Congress, and cost comparisons with chemical rockets figuring in the cost for permits, dealing with protestors, time delays, etc. Jim also explained the economic benefits of his unique public private partnership he wants to see created to do nuclear propulsion to LEO and why.  His methodology for making this happen is potentially doable.

In the second segment, we continued talking tech about the nuclear rocket including core issues, the possibility of gas cores, specific impulse for the NTR, then a question came in about supporting the NewSpace agenda of NASA supporting space settlement and low cost space access.  He was asked if the NTR plan he was proposing supported these NewSpace goals.  Don’t miss what he had to say about this as I believe it was an important part of the discussion.  Jim repeated often during the show that as a nation we were nearly $20 trillion in debt and bankrupt. He then explained the economics of his program and why they would benefit NASA and the country in this challenging economic time rather than be deleted as a program that was just too costly.  Quite the opposite, he stated his program was made to order for these tough economic times.  See if you agree.  I do and we talked about it some more at length as we neared the end of our program. I suggested a sales approach that was much broader than just the space industry.   John in Ft. Worth called to discuss many technical issues and core temperatures.  BJohn wanted to know if the NTR should be reusable and refuelable.  Joe wanted to know how to start the program to advocate the public private partnership Jim was talking about and which he fully describes in his book.  Comments came up regarding Dr. Zubrin and the nuclear salt water rocket,  (see http://path-2.narod.ru/design/base_e/nswr.pdf).  Near the end of the show when we were talking about creating the needed policy for the partnership, Dr. Dewar referenced Admiral Rickover as a model for the type of leadership needed to make the NTR project happen.  As the program was ending, questions came up about Thorium and U233.

Please post your comments/questions on TSS blog per above.  You can reach Dr. Dewar about his first book or anything else through me at drspace@thespaceshow.com and I will send you his email address or forward your note.

Robert (Bob) Zimmerman, Tuesday, 9-15-15 September 16, 2015

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Robert (Bob) Zimmerman, Tuesday, 9-15-15

http://archived.thespaceshow.com/shows/2553-BWB-2015-09-15.mp3

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Guest: Robert (Bob) Zimmerman; Topics: Space news & industry updates, commercial space happenings & 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.

 

We welcomed back Bob Zimmerman for a two hour discussion plus updates on the space industry, including commercial space and NASA’s planetary science program. Bob started out by saying that the commercial space industry was heating up and getting more competitive, citing two significant stories. First, he mentioned the Blue Origin announcement about opening up a Florida launch site. Next, he addressed the SpaceX news regarding new commercial launch contracts with ARAB SAT and also the Falcon Heavy (FH) with demo launches to start in 2016. Bob spoke for some time on the FH, plus he talked about recent Russian Proton successes with their having said they found a systemic flaw in the Proton system but now that it was repaired, they expected more successful Proton flights. Virgin Galactic was next up for discussion and here Bob said the news was confusing. He spoke to the recent company announcements about Launcher One, then upon my asking, said that SpaceShip 2 seemed to be getting less attention for now. Bob mentioned the possible NASA use of a low cost Dragon capsule, then Jonathan Evans started in asking a series of questions, the first inquiring about what makes more business sense, Blue Origin’s expansion plans in Florida at Kennedy or SpaceX’s expansion plans in south Texas near Brownsville? After responding to Mr. Evans, Bob had much to say about ULA, the proposed Aerojet Rocketdyne buyout bid of ULA, plus the overall competitive nature of ULA in today’s rocket environment. Bob got a question from Jim who wanted to know his thoughts on XCOR given what he had said earlier about Virgin Galactic. Bob was not that positive about XCOR, joking that Charles Lurio would probably call in to rebut his comments. This prompted Dr. Charles Lurio to call in to “correct the record” and the mistakes Bob was making regarding XCOR and their progress. When Charles called in, he had much to say to set things straight.

 

In the second segment, our first call was from Dave in the Chicago area. Dave spoke about Blue Origin and ULA deals plus the ACES upper stage. Later, Bob went after the SLS again, mostly on its costs being too high. John from Ft. Worth called and the two of them had an interesting exchange on several related topics. Bob next mentioned the Rosetta mission and the Philae Lander, then he switched to the planetary science missions and programs. Bob had much to say that was positive on these missions including Cassini, New Horizons, and Curiosity. Later, Jane asked when space policy would enter the 2016 presidential race. Bob did not think it would enter the race, plus he did not want it to become a campaign issue. Listen to his comments and see if you agree with him. Tim called and mentioned that not everyone believes that SLS is bad as Bob had been expressing all night. Bob talked about SLS and science missions, the Decadal Survey, and its high operating and launch costs which hurts planetary scientists. As our program was drawing to a close, I asked Bob about the future of the ISS, Arianespace & what to look out for regarding private/commercial space.

 

Please post your comments/questions on TSS blog above. You can reach Bob Zimmerman through me or his website, www.behndtheblack.com.