Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from holmes.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr1/ota/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr1/ota/space/space.dl) (->ota+space.digests) ID ; Sat, 25 Mar 89 03:17:19 -0500 (EST) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Sat, 25 Mar 89 03:17:11 -0500 (EST) Subject: SPACE Digest V9 #311 SPACE Digest Volume 9 : Issue 311 Today's Topics: Why NASA is in trouble Were remote manipulators ever called Waldoes? Good stuff on TV (A&E Cable to show Apollo 11 footage) Using the Shuttle for higher orbits Sojuskarta Photos ---------------------------------------------------------------------- Date: 23 Mar 89 00:33:55 GMT From: vsi1!v7fs1!mvp@apple.com (Mike Van Pelt) Subject: Why NASA is in trouble After a message I left flaming NASA for, among all the usual things, expecting to replace all its retiring expertise with an "Expert System", I received the following Email. I thought it should be posted, but the sender didn't wish his name attached to it. He did give his permission for me to be post it without his name. ---------------------------------------- Mike - I saw your message on Heavy Lift Launchers from March 10 (sent to the space news feed) as a part of the Space News Digest on ARPAnet. A couple of minor corrections on the Saturn V. The two left over S-Vs are at Marshall and at JSC, but the one at JSC is not in front of the visitor's center, but is at the parking lot. (A minor nit to pick, I know.) Castigating NASA for the long lead time to develop a new launcher is not wholly appropriate. Several major differences exist between the NASA of the Apollo days and the NASA of today. First, NASA had a stable budget that was not as subject to Congressional Micro-management and program stretchouts. If the money needed was allocated and was promised to be adequate (barring a war or other disaster) for the scheduled program, it would make things easier. For examples of the problems that unstable funding and program strechouts lead to, read the histories of the Shuttle program in "Challenger: A Major Malfunction" and "Prescription for Disaster". In addition, 60% of this fiscal year's Space Station budget will not be available until May or June. This means that for 40% of the money, 58 to 66% of the year's work is to be done. Yes, some equipment can be purchased at year's end, but right now the Station is in the design phase, which is engineering labor intensive, not hardware intensive. This is due to a political ploy by the Democrats, which would have allowed Dukakis to kill the Station and move the money to aid for the homeless. Second, NASA was put under the DOD procurement regulations, making any significant ($100,000+) purchase a nightmare of paperwork. For something as big in $$ as a heavy lift vehicle it would take 2-3 years to: write a Request For Information & Request For Proposal (RFP), get the RFP approved by purchasing and legal, issue the RFP, wait 3+ months for questions from the bidders, write the responses to the questions (this has to be done by taking all the questions and writing a document which answers all the questions without giving away the questions), wait 3-6 months to get proposals from the vendors, set up a place for the Source Evaluation Board to review the proposals and read them, and finally (3-6 months more) award the contract. This assumes that there won't be a preliminary weeding out of bidders to 2 or 3 finalists, as was done with Shuttle. {Shuttle had 4 bidders at the first cut - I think they were Rockwell, Boeing, Grumman and McDonnell-Douglas, then it was cut to 2 - Rockwell and ?Grumman. The Boeing proposal was a fully reusable liquid fueled system with a flyback first stage and higher payload, but was deemed too expensive to develop. The Grumman candidate shuttle had a higher payload, but a lower crossrange landing capability and DOD did not want to use a vehicle that could not guarantee an emergency landing outside a Communist country.} Then, if anyone protests to the GAO, add 6+ months for the protest to be looked at and ruled on. (The validity of the protest has nothing to do with anything these days - recently the contract for the Advanced SRB for the Shuttle was narrowed down to 2 competitors from 5 or so - a small Canadian company with only a few employees and no track record in large boosters has protested and is now delaying the bidding process!) So, in order simply get the program rolling will take 2-3 years. Even small purchases take a lot of time - it takes 4-6 weeks to buy a PC around here. I've got a PO for a Mac IIx in the works and it has been there for 30 days now. It took 2 weeks to get it signed off. Third, NASA doesn't have the money to do what they did in Apollo - try several lines of attack to the problem so as to have a backup if one of them is a dead end. The LEM that was finally used in Apollo was the secondary contractor design. Fourth, NASA (and its support contractors) are having a hard time in recruiting engineers. The average government engineer starts out at $26,500 (for FY 88) and the average nationwide was $30,500. That $4000/yr difference is harder to overcome, as the benefits of civil service are not what they used to be - the retirement, insurance, etc. are all now on a par with private industry levels or are more expensive. In addition, all new civil servants are now part of Social Security. The only significant advantage of civil service is a more liberal vacation policy. It is hard to get someone to take pay that starts out 15% below average, work in grungy buildings, in crowded offices, put up with the B.S. and paperwork and expect the pay gap to get worse as time goes by. The glory of working on the space program doesn't sell as well as it did in the 60s. I am making 20% less than my former co-workers at my old job - and I have more experience and a MS degree to boot. Recruiting at NASA Ames in the SF Bay Area is a nightmare - after 10 years experience you might make $42000/yr or so. That doesn't go far when 1 BR apartments are $700/month and houses are $200k. The government tends to get two kinds of engineers to apply - those that want to work on the projects the government does, and those that can't find jobs anywhere else. In the Apollo days, the first kind of applicant overwhelmed the second at NASA. NASA has seen a reversal of that since the early 70s. Draw your own conclusions for the other agencies. The pay issue goes all the way to the top of NASA managers - the head of JSC (a 2.5 billion+ enterprise with 5-6000 employees and contractors) can only make about $72000 a year with a small bonus added on. The starting salary for a lawyer in New York City at an established firm is $69,000 and for MBA type it is in the 50s, so why should a good manager stay around and make 50% of what he could in private industry? What seems to happen is that many managers bail out to industry as soon as they have 20-25 years in at NASA and have a good pension built up for retirement and then go to industry to add a second pension and make some bucks. On the subject of the expert systems article in the New York Times - the writer had it somewhat wrong. The INCO expert system that was shown in the picture is not intended to capture the expertise of retiring NASA engineers. The AI aspect of the project is a minor part of its success. It has been well-accepted here at JSC more due to its fast, readable data displays and flexible human interface than any AI content. The expert system in it is relatively small and not very sophisticated (which was intentional - in a project that is as mission-critical as this, you walk before you run). The current displays in mission control are cryptic and use a lot of hexadecimal codes to display fault info. The controllers have to memorize them or look them up in books, which is time consuming and unwieldy. (If this sounds very stone-age, remember that the shuttle had a mid-70s technology freeze for the electronic systems, and mission control is driven by a bunch of old IBM mainframes with 80x24 character displays and simple vector graphic displays like the old Tektronics 4000 series.) There is a department working on a project to do design knowledge capture for the space station. The station will be on orbit for 30+ years, so NASA realizes that the designers will be moving on and will not be around to answer all the questions that will come up during operations. So, a project that will capture the reasons for design decisions, the tradeoffs, the pitfalls and possible problems and failure modes is being launched. It is hoped to put most of this information into a database that will be available for future reference and possibly for use in building expert systems. NASA is very conservative when it comes to AI, so don't expect that the engineers will be replaced by black boxes anytime soon. In any case, if the expertise of a retiring engineer can be captured, that is better than not having it at all. I don't see why it should upset you. NASA is not solely the province of evil moneywasters that intend to sacrifice the future of the space exploration to the USSR. There are a lot of good people here that are looking down the road and want to do a good job. However, when Congress says design to cost not specifications as happened on Shuttle, delays, stretchouts and overruns will (and did) happen. It really chaps me to see some of the uninformed, polemical drivel that is put out on the net as the "truth" about NASA. NASA is not perfect. NASA is not the ultimate example of what government should be. NASA is a human institution, with all the problems that entails. (name deleted by request) --------------------------------- He's right. Let's not forget, there are still some good people at NASA, and they deserve better than they're getting from the twits in Congress. -- "Ain't nothin' in the middle Mike Van Pelt o' the road, 'cept a yellow Video 7 line and dead 'possums." ...ames!vsi1!v7fs1!mvp ------------------------------ Date: Wed, 22 Mar 89 10:06 CST From: Bill Higgins-- Beam Jockey Subject: Were remote manipulators ever called Waldoes? Original_To: SPACE Recent discussion on teleoperation in Space Digest has revived the word "waldo" to describe a mechanical hand. I had some trouble with this word some years ago, and I'd like to ask about it... I was working on a museum exhibit which dealt with "how science fiction has influenced the real-world development of spaceflight." One of the examples that came up was the oft-repeated story that Robert Heinlein's novella "Waldo," written in the 1940s, gave a name to the remote manipulators developed for handling radioactive materials. I decided to look into this a bit. Fermilab has a number of engineers who are experts with decades of experience in the remote-manipulator field. Somewhat to my surprise, they had never heard the name "waldo" before. I didn't research this exhaustively, but I began to suspect that "waldo" is a word that never did go into general use among manipulator people. It is an observed fact that most science fiction fans believe that "waldo" is the accepted name for mechanical hands. This story is widely repeated and has been embedded in SF-techie folklore for a generation now. Here's what I think may have happened: 1. Heinlein writes a popular story in *Astounding Science Fiction* in which remotely controlled hands are called "waldoes." 2. In some laboratory somewhere, a group of engineers working on remote manipulators decides to call their device a "waldo." At least one of them reads *Astounding* (obviously). Maybe they inform the rest of the technical community through conference papers, etc., or maybe they don't; at any rate, the name does not catch on. 3. The *Astounding* reader writes a letter to the magazine reporting that his lab has called their manipulator a "waldo." 4. John Campbell, editor of the magazine and an inveterate booster of hard SF, either prints the letter or mentions it in an editorial. Chances are he will repeat the story many times over the years, as he loves to tell people how good SF is at influencing technology. 5. The "waldo" story becomes a canard, repeated by SF writers and fans for decades, though remote-manipulation engineers who are *not* SF fans are ignorant of it. Now I don't have much evidence to back this scenario, though it fits the meager facts I know about manipulators, folklore, and the way Campbell's mind worked. I am hoping that somebody who knows more about the history of manipulators, or who has seen discussion in the pages of *Astounding/Analog*, will be able to provide more information. If there are newsgroups relevant to teloperation, remote manipulation, or robot hands, maybe some kind soul will cross-post. (Apologies for the slender relevance to space!) ______meson Bill Higgins _-~ ____________-~______neutrino Fermi National Accelerator Laboratory - - ~-_ / \ ~----- proton Bitnet: HIGGINS@FNALB.BITNET | | \ / NEW! IMPROVED! SPAN/Hepnet/Physnet: 43011::HIGGINS - - Now comes with Free ~ Nobel Prizewinner Inside! Internet: HIGGINS%FNAL.BITNET@UICVM.uic.edu ------------------------------ Date: 21 Mar 89 21:32:53 GMT From: att!homxb!homxc!mrb1@ucbvax.Berkeley.EDU (M.BAKER) Subject: Good stuff on TV (A&E Cable to show Apollo 11 footage) Hi ---- The following is excerpted from the March 13th issue of "Broadcasting" magazine (usual copyright stuff applies, I'm sure, so "Thanks and a tip of the SRB" to them). Twenty years after the actual event, Arts & Entertainment cable network will rebroadcast NBC News' coverage of Apollo 11's July 20, 1969 landing on the moon. Entitled "Moonwalk: As It Happened--1969", the footage will air in three parts: "Liftoff" on July 16; "Moonwalk" on July 20, and "Recovery" on July 24. Each part will be aired exactly 20 years to the minute after NBC News first began live television coverage. Hope this is of interest to many newsgroup readers. I was 12 then, and there are probably more than a few people reading this who weren't even born in 1969 --- so this should be a quite an opportunity to see and tape this programming. M. Baker homxc!mrb1 ------------------------------ Date: Wed, 22 Mar 89 16:20 EDT From: Subject: Using the Shuttle for higher orbits Has anyone seen any studies to show if the shuttle could achieve a higher (geostationary even? escape trajectory (to moon)) if it filled a good portion of the cargo bay with a fuel pod? Once (if) a station gets made, it could drop off cargo there, load a tank into the bay (even another external) and take off from there. Admittedly they need to man rate it for up to 30 days or more, but hey, why not? I know they are thinking of developing a space "tug" for geo orbit transfer, but the shuttle would make a good intermediate step if it can get the capability. Think of all the LEM type vehicles a fully loaded shuttle could hold in lunar orbit. The problem would no doubt be that the shuttle wasn't made for the higher radiation possibilities or the longer duration voyages. Any opinions? Korac MacArthur K_MACART@UNHH.BITNET ------------------------------ Date: Wed, 22 Mar 89 08:25:29 PST From: greer%utd201%utadnx%utspan.span@vlsi.jpl.nasa.gov Subject: Sojuskarta Photos X-St-Vmsmail-To: JPLLSI::"SPACE@angband.s1.gov" From March 13 Space_Digest >Art Dula, US rep for Soviet space products, reports that some US >government agencies are buying Soviet space photos from Soyuzkarta via >him. He won't say who; "if I did that, they wouldn't be customers >any more". Soyuzkarta delivery is slow and they can't deliver digital >data, because their satellites are film-return types, but they give >5-meter resolution (unenhanced), which is better than anyone else. > >Henry Spencer A related story appeared in The Dallas Morning News on March 20, 1989. Here is a greatly condensed version. Fort Worth Firm Spies Market for Soviet Satellite Photos by Susan Waller /staff writer, DMN/ Forth Worth geologist Dr. Velon Minshew heads two-man operation for ContiTrade Services Corp. to market hi-res pictures from Soviet FTO Sojuskarta. Contitrade's contract marks first release of hi-tech Soviet photography to Western world. The higher [than LandSat] resolution photos may face some international opposition. Feds are resisting widespread availability of [hi-res sat photos], which may limit ContiTrade's sales. ContiTrade will sell the unretouched photos or will digitalize [sic] them. "The cost depends on how detailed the customer wants to get, but a top-of-the-line color positive runs about $1000," said Russ Irons, director of ContiTrade's computer-applications division. "The Soviets will sell the data at 60 meters digitalized, but we can beat that already," Dr. Morgan [geologist at TCU] said. "If you have the raw data that can be digitalized, you have much more control of the image." Soviets unlikey to face competition from U.S.. "The feeling is that the cost of putting up the system is going to restrict the commercial usage. *All our launches are via the shuttle; we don't have launch vehicles for commercial use*," Mr. Doyle [of the U.S. Geological Survey] said. [My italics.] ContiTrade Services is international merchant bank with >10000 employees worldwide; delivers financial services to trading community. Photos from Sojuskarta can include any area except Soviet Union, China, and other socialist countries. The agreement gives ContiTrade exclusive rights to market the space photos in Western hemisphere, excluding Argentina, Brazil, Peru, Nicaragua, and Cuba. ---- "Pave Paradise, | Dale M. Greer put up a parking lot." | Center for Space Sciences -- Joni Mitchell | University of Texas at Dallas | UTSPAN::UTADNX::UTDSSA::GREER The opinions are my own, and may or may not reflect those of my employer. P.S. Some of the spelling on the net has always been atrocious, and now some of the grammar is difficult to follow as well, and not just from those Quebecers either. But mainly I'm getting tired of seeing "arguement" and "argueing", words which come up often on any net, and which are correctly spelled "argument" and "arguing". ------------------------------ End of SPACE Digest V9 #311 *******************