Dr. John Jurist, Webinar, Sunday, 10-28-12 October 29, 2012
Posted 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 jmjurist@aol.com.
Open Lines, Sunday, 10-7-12 October 7, 2012
Posted 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
. 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.
