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Doug Messier, Tuesday, 1-29-13 January 30, 2013

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Doug Messier, Tuesday, 1-29-13

http://archived.thespaceshow.com/shows/1939-BWB-2013-01-29.mp3

Guest:  Doug Messier.  Topics:  Spaceport America and Virgin Galactic informed consent, liability, & contract issues per www.parabolicarc.com & much 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.  We welcomed Doug Messier back to the program to discuss his reporting on Spaceport America and Virgin informed consent issues and possible contract issues.  We also talked to him about his management of Parabolic Arc, his possible expansion of the blog and even accepting guest contributors.  Check out his reporting and stories at www.parabolicarc.com. Our first subject was on Spaceport America and Virgin starting with Doug’s most recent post about possible Virgin rent payment disputes followed by the informed consent issues which may now have been resolved through negotiations with Virgin, the NM legislature, and NM trial attorneys.  We took listener calls and emails and as it turned out, the spaceport and Virgin story was controversial with listeners all over the board on these issues ranging from Charles who believes the spaceport and the industry are way ahead of their time to others who believe success will definitely prevail for the spaceport, Virgin and the industry.  Another issue discussed in the first segment was the hybrid rocket engine, possible Virgin problems with it, and related items. Doug shared his information with us on the subject and provided us with a brief history & overview on the hybrid engine.  We talked about powered test flights and the difficulty in doing these ventures given they always seem to be about two years away from operations.

     In the second segment, Doug told us about activities at the Mojave Air and Space Port including the construction for Stratolaunch.  Somehow we ended up again discussing hybrid engines and informed consent.  Doug was asked about Virgin and XCOR differences and he spoke as much as he could about the Lynx but said he was under NDA with XCOR as he is working on an XCOR book.  He seemed to favor the XCOR approach.  We talked about his future plans for Parabolic Arc. He is thinking of broadening it to other areas and accepting guest contributions.  I asked him about his visits to see the ATK five segment SRB tests and his thoughts on solids, ATK, etc.  He had much to say about it and SLS.  He continued talking about Mojave, I asked him if he had ever seen the Orbital L1011 and he told us about his tour of it and hearing Bill Weaver speak about his SR-71 breakup and survival.  A listener asked him about Interorbital out of Mojave, we talked about Dream Chaser, and more.

     If you have comments/questions for Doug, post them on The Space Show blog. You can email him through me at drspace@thespaceshow.com.

Dr. Erik Seedhouse, Sunday, 1-27-13 January 28, 2013

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Dr. Erik Seedhouse, Sunday, 1-27-13

http://archived.thespaceshow.com/shows/1937-BWB-2013-01-27.mp3

Guest:  Dr. Erik Seedhouse.  Topics:  Dr. Seedhouse talked about his new book, “Pulling G: Human Responses to High and Low Gravity.”  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.  We welcomed Dr. Erik Seedhouse back to discuss his latest book, “Pulling G: Human Responses to High and Low Gravity.  I strongly recommend this book as it is a terrific resource on the subject of G-force on the human body.  If you buy it using this URL from Amazon, Amazon will make a contribution to The Space Show:  http://www.amazon.com/Pulling-Responses-Gravity-Springer-Popular/dp/1461430291/ref=onegiantlea20.  Our 1 hour 42 minute discussion was in two segments but as our topics overlapped segments, there will be no part one and part two for today’s program summary.  Dr. Seedhouse began the discussion talking about the different types and sources of gravity on the human body.  This included acceleration, lateral, reentry, vibrational, and more. We talked about helmet restraint issues, Formula One race cars and taking corners at high speed producing a high lateral G force, jet fighters, rocket flight, roller coasters, and more.  Erik went over the proposed flight profile in g terms for Virgin Galactic and other proposed vehicles.  He also talked about centrifuge research and findings with the general public at the NASTAR facility.  He then switched to g-load force, fighter pilots and the Anti-G straining maneuver and breathing that they do to help counter excessive g’s.  Suborbital flight came up and here, Dr. Seedhouse had much to say given the small amount of suborbital human spaceflight history.  We also talked about bone loss and density issues, osteoporosis, and obesity.  Erik said the best physical profile for resisting high g force was short and stocky.  The worst was tall and thin.  Don’t miss his explanation for this. He also said smokers do better in high g’s over nonsmokers.  Erik got lots of question about the Bill Weaver SR-71 ejection.  Then he mentioned the Armstrong Line and said above that point, blood boils without a pressure suit. Erik also talked about orthostatic intolerance (OI) in the context of g tolerance.  He talked about professional astronaut training for suborbital missions such as with Astronauts4Hire.  We then discussed the financial problems hitting the Canadian aerospace industry with layoffs, closures, and the possible sale of valuable space hardware.  Listeners wanted to know about anti g countermeasures, if any, and laser eye surgery was discussed although Erik said it was no longer a problem.

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