Dr. James (Jim) Wertz, Sunday, 3-17-13 March 17, 2013Posted by The Space Show in Uncategorized.
Tags: AMSAT, Apollo, budget issues, civil space., commercial space, composite tanks, Continuing Resolution, Dr. James Wertz, high speed turbo pumps, ISS, launch rate, low cost space launch systems, Microcosm, NASA, pressure fed rocket systems, private sector, reducing mission cost attitudes, Reinventing Space Conference, rocket reusability, Scorpius launch vehicle, sequestration, Small Satellite Conference, small satellite launcher, space mission engineering, student space projects, Surrey Satellite, U.S. congress, USC Astronautics
Dr. James (Jim) Wertz, Sunday, 3-17-13
Guest: Dr. James (Jim) Wertz. Topics: Reducing space mission launch costs, changing space industry attitudes. 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 back Dr. Jim Wertz, President of Microcosm, to continue our discussion on lowering total space mission costs. For more information, visit the company website, www.smad.com/ie/ieframessr2.html. Make sure you check out the Scorpius launch vehicle link on the website as this launcher could be a model for what Dr. Wertz talked about during the program. In the first hour of our 100 minute program, Dr. Wertz identified sequestration and the government response to it as a big problem for the space industry, specifically the smaller companies and financially vulnerable projects. Also, the fact that we are still on CR with the budget adds to the stress. Despite the problems, Dr. Wertz did say throughout our discussion that it was possible for something good to come out of all of the problems in that we might actually start focusing on lowering total space mission costs. During much of the first hour, Dr. Wertz discussed the way the industry works, some of the challenges to lowering mission costs, and the need for lots and lots of attitudes to change to embrace the lower mission cost goals rather than the status quo or holding on to thinking that the rough times will pass and then we will be back to normal. We talked about choke points in the strategy, the challenges, the hurdles. I asked if NASA and Congress were the obstacles. Dr. Wertz mostly said it was a collective attitude throughout the industry with all of us and all sectors that prevents the broad scale creation of the low cost mission environment. He cited many examples, including a ten year spacecraft build out with a 15 year life such that when done, its 25 years behind the times. He talked about advancing & new technology and the need to stay current, to keep replacing the old with the new. We also talked about the value & economics of having hardware & component backups on a shelf ready to go when needed. Reusability came up & I used Doug’s email as the poster question on the subject. This turned into an detailed discussion about the both the upside and downside of reusability. As you will hear, economics don’t favor reusability unless there is a dramatically higher launch rate. Dr. Jurist called in to talk about student projects & the need to launch them while the students are still in school. He also talked about this in the context of keeping young people interested in space. He asked Jim for solutions and Jim suggested simpler designs. For example, pressure fed systems rather than using high speed turbo pumps with thousands of parts, plus the use of more composites, especially in the tanks. Jim was asked about the minimum possible launcher size and he said about 100 kg or 220 lbs. to LEO.
In our shorter second segment, Dr. Wertz was asked about the commercial private ventures announced in 2012 and so far this year. He though we were technically capable of doing most of them but that the track record for the private sector in reducing total space mission costs was not that much better than the public sector track record. He went back to saying the main driver was attitude and that changing attitudes within the industry in the public and private sectors was key to reducing space mission costs. He cited yet another example, this time the idea to use AMSAT for space communications. Dr. Wertz added that we need to convey urgency to the policy makers in getting them to change their attitude as other nations are moving forward with space and in many ways we are in retreat. Claudia in Memphis sent in a note asking if classes were taught in aerospace engineering programs on how to change attitudes within the industry. Dr. Wertz liked the idea but was not aware of classes of that kind. As the program was ending, he talked about how and who to influence and used the Rachel Carson environmental book “Silent Spring” as an example. He concluded the discussion by mentioning the Reinventing Space Conference in Los Angeles, Oct. 13-17 (see www.responsivespace.com). He repeated his hope for a positive outcome from sequestration which would be a renewed focus on the need to actually develop systems & the environment to enable reduction of space mission costs, including launch costs.
Please post your comments/questions on The Space Show blog. You can email Dr. Wertz at email@example.com.
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
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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 firstname.lastname@example.org.