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Open Lines, Tuesday, 2-19-13 February 20, 2013

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Open Lines, Tuesday, 2-19-13

http://archived.thespaceshow.com/shows/1953-BWB-2013-02-19.mp3

Guest:  Open Lines with Dr. David Livingston.  Topics: Carnival Cruise lines & informed consent, space radiation, nanosat launchers, & much 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 started our one hour fifty-one minute Open Lines discussion by my throwing out some suggested topics which included recent USA Today polls on human spaceflight to Mars and informed consent using the recent Carnival Cruise Line cruise from hell as a possible indicator of what may happen in the space tourism industry.  Dave, our first caller, talked about the new efforts to create NTRs and have nuclear propulsion using tungsten as the fuel base. Dave had lots to say about the tungsten as well as traditional fuels.  I next read a listener email about an NCIS Los Angeles 2011 episode about satellite sale to a foreign party and ITAR,.  Next, we talked about another listener email calling our attention the SpaceWorks Nanosatellite Market Report, and then up next was the CNN interview with Bill Nye and the CNN anchor asking Bill if global warming was causing the NEOs and events like the Russian meteorite.  Thanks to Tim for sending in the URL for the interview which you can see and hear at  www.youtube.com/watch?v=ObU7awpJctQ.

     In our second segment, Pooley called in to support my informed consent and Carnival Cruise Line comments plus he again told us why he did not think the space tourism industry would be successful.  Charles also talked about the Russian meteorite and the need for a dedicated cubesat or nanosat launcher over and above flying small sats as secondary payloads. In addition, we talked about the Google Lunar XPrize and the absence of launch contracts for the ride to the Moon.  Tim called to talk about the nanosat launch industry, we talked about the upcoming Virgin Galactic1 small satellite launchers and deep space radiation and HSF.  The dedicated small sat launcher reminded me of an Oct. 13, 2008 Jurist Space Review article proposing a university consortium for such a launch system and the condemnation he got for his proposal.  Dr. Jurist called in to talk about his proposal and the response.  You can read his 2008 Space Review article here:  www.thespacereview.com/article/1228/1.  I also asked Dr. Jurist about Tim’s radiation comments and he explained this particular radiation issue to us. He also said there was a real lack of valid data points so much of what Tim, John and I were talking about was simply an unknown or extrapolated from data pools that may be quite different from those at the lower end of exposure.  In discussing this subject, Dr. Jurist talked about American radiation standards, astronauts as radiation workers, and the European standards.  At the end of the program, Tim called to talk about the Carnival Cruise Line incident and informed consent. Tim suggested tort reform with caps but also put forth a novel behavioral theory and I told him I would absolutely go on the five day cruise from hell to earn a million dollars!

     Please post your comments/questions on The Space Show blog.  You can email any of the participants in this program through me at drspace@thespaceshow.com.

Dr. James (Jim) Wertz, Monday, 2-11-13 February 12, 2013

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Dr. James (Jim) Wertz, Monday, 2-11-13

http://archived.thespaceshow.com/shows/1948-BWB-2013-02-11.mp3

Guest:  Dr. James (Jim) Wertz:  Topics:  Methods for dramatically reducing space mission costs, schedules, & 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. Jim Wertz, President of Microcosm, back to the show to discuss various methods & tools for reducing total space mission costs.  Our guest talked about successful programs and tools that have so far contributed to total mission cost reduction.  In the first segment of our 1 hour 33 minute program, Dr. Wertz started by defining what he meant by reinventing space.  He said this refers to a dramatic reduction in total space mission costs by a factor of 2::10 for schedule related reductions and 2-5 times for space access related costs.  Early on he was asked about reducing costs by increasing the launch rate, a common argument heard in various sectors of the space industry.  His response might surprise you.  Dr. Wertz cited examples to support his comments, specifically Surrey Satellite in the UK (SSTL) as they have been reducing costs successfully for 25 years.  He said modern technology must be used. He also pointed us to his Reinventing Space Project with the USC Astronautics Department.  Also, he pointed us to these websites for more information, www.smad.com/ie/ieframessr2.html and www.smad.com/ReinventingSpace.html.  Dr. Wertz mentioned disaggregation regarding the military using smaller spacecraft and different orbits.  He was asked about cubesats and cubesat launchers, the Scorpius launch vehicle, and NanoEye.  Jim offered sequestration and budgetary comments and pointed out the difficulty in mission planning and more when the nation continues to operate on CR rather than a budget.  He talked about the potential seriousness of the sequestration cuts.  In response to questions about the private sector and SAA type agreements, he pointed out that they exclude the smaller, more creative and innovative cutting edge companies as they are often unable to contribute the required financial portion of the agreement.  Jim pointed out that the goal was to reduce total mission costs, not just launch costs. He said that the launch cost was not always the most costly component of the mission.  As the segment ended, he talked about emergency response and the need for a rapid response, something that is today unavailable.

    In the second segment, we talked about the Cassini Resource Exchange as an effective policy that reduced mission costs and enabled an on time project.  Don’t miss the details about this program.  He again talked about SSTL and pointed out that their attitude is what makes them special & so good.  SSTL has pride in reducing mission costs. We don’t have such pride.  Dr. Wertz talked about Trading on Requirements and why it is risky.  During the first segment, fuel depots were offered up as a possible way to reduce mission costs but Dr. Wertz put them in the marginal category. During this segment, listeners had lots of questions about fuel depots.  In fact, it was as if they cared more about their vision and beliefs regarding fuel depots than the overall message Dr. Wertz was putting out. Clearly fuel depots have the attention of space enthusiasts & sectors of the industry no matter what.  A listener also asked about advanced propulsion concepts as represented by several companies pushing very advanced designs.  Dr. Wertz mentioned that the amateur satellite network could be used to reduce mission costs and talked about the success of AMSAT.  More listener questions came in regarding fuel depots, by far the most common discussion and question topic of the day.  Jim talked about future programs that may offer economies of scale such as SSP.  The last questions came in from Tim regarding our discussion of using pressure fed systems over the use of systems with a turbo pump.  He also wanted to know about rocket reusability.  Jim’s answers may again surprise you.

     Please post your comments/questions on The Space Show blog above.  You can email Dr. Wertz through me using drspace@thespaceshow.com.

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