Dr. James (Jim) Wertz, Monday, 2-11-13 February 12, 2013Posted by The Space Show in Uncategorized.
Tags: " SpaceX, advanced technology propulsion design, AMSAT, Cassini Resource Exchange, cubesat launcher, cubesats, Dr. James Wertz, drones, interplanetary missions, ISS, launch vehicle reusability, low cost space launch systems, Microcosm, military disaggregation, NASA, on orbit servicing, orbiting fuel depots, orbits, pressure fed systems, Reinventing Space, Reinventing Space Conference, Scorpius launch vehicle, sequestration, SmallSat., space debris, space mission planning, SSP, Surrey Satellite, Trading on Requirements, turbo pump, USC Astronautics
1 comment so far
Dr. James (Jim) Wertz, Monday, 2-11-13
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 email@example.com.
John Batchelor Show, “Hotel Mars,” Wednesday, 2-8-12 February 9, 2012Posted by The Space Show in Uncategorized.
Tags: : John Batchelor, aerospace industry, Dr. Robert (Bob) Zubrin, heavy lift, ITAR, John Batchelor Show, Mars Direct, Mars exploration program, orbiting fuel depots, private HSF to Mars, prizes, space entrepreneurs
add a comment
John Batchelor Show, “Hotel Mars,” Wednesday, 2-8-12
John Batchelor, Dr. Rorbert Zubrin, Dr. David Livingston
Guests: John Batchelor, Dr. Robert (Bob) Zubrin, Dr. David Livingston. Topics: Manned Mars exploration, prizes, NASA, Private Sector. 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. This program is archived on The Space Show website, podcasting, and blog sites with permission from John Batchelor. Please visit the John Batchelor Show website for more information about this fine program, www.johnbatchelorshow.com. The topics in this 11 minute plus segment focused on Dr. Zubrin’s recent article published in the National Review (www.nationalreview.com/blogs/print/289775) titled “The Mars Prize” and dated Feb. 1, 2012. During our Hotel Mars segment, Dr. Zubrin explained the rational behind his Mars Prize idea, he discussed the economics of it and how it would drive the necessary technology advances needed for a human Mars mission. When asked about fuel depots, he said they were a stupid idea and he explained why. He also said the prize was independent of what he thought or approved of as the winning approach may very well include the use of orbiting fuel depots were it the best of the competition. He went on to say that prizes do not tell people how to do the project. Dr. Zubrin talked about who most likely would compete and he named the current billionaire space entrepreneurs but said others would emerge. There was a discussion about making the prize international and we discussed potential ITAR and U.S. taxpayer funding issues. In response to another question from Mr. Batchelor, he said those competing could very well contract to use NASA talent and skills, but they were free to bring on board such expertise from other sources. He also said NASA would likely be a customer for the proven technology from the winner and the company having successfully implement the human Mars mission. Please post your comments/questions about this segment to The Space Show blog. If you want to contact either Dr. Zubrin or John Batchelor, send your note to me and I will forward it for you.