Broadcast 2208 (Special Edition)

The Space Foundation Conference

16 Mar 2014 Dr. Doug Plata
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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, 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 For those listening to archives using 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 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 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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