...Jet Propulsion Laboratory by vpnacek | studymode.com Jet Propulsion Laboratory Harvard Business School Case 9-110-031 1.1 Should Gentry Lee recommend launch or delay for the Mars Biological Explorer (MBE) mission? Gentry Lee should recommend the launch for the MBE mission. As stated in the case study, Gentry Lee is introduced to the project with a significant amount of experience working with NASA and interplanetary exploration missions (Kaplan and Mikes, 2010). Multiple review boards took place to discuss in detail the consequences and likelihood of risks occurring. Tiger teams were established to find resolutions to existing problems weeks before the launch date. The case study eludes to a high probability of the budget increasing if the launch is delayed, and the probability the mission would not be successful was low. Because of this, Gentry Lee should recommend the launch of the MBE mission. 1.2 What are the most important factors to consider in this mission? JPL invested substantial time “Identifying, measuring, and applying risk factors against the value opportunity and the cost of failure” (VMware 2013). This methodology was a key process to deciding to launch or delay the launch of MBE. One factor that had an impact is regarding the current team members. Because CalTech operated Jet Propulsion Laboratory (JPL), it is likely that the majority of engineers part of the mission team, were new graduates from CalTech. At that moment in the project life cycle...
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...Unit 15 Aircraft Propulsion Technology Outcome 1.1 1) T=m(V0 -V1) m= 1000kg/s T=1000(120-100) V0 =120m/s T=20,000N V1 =100 m/s 2) Total thrust =Thrust of core engine + thrust of fan Thrust = Mass airflow x (bypass velocity – aircraft velocity) + Mass airflow x (exhaust velocity – aircraft velocity) Thrust = 300 x (180-120) + 200 x (220-120) = 300 x 60 + 200 x100 = 1800 + 2000 = 38,000N 3) Cross reference to Unit 17 Gas turbine science outcome 2 assignment 2 Q1 4) Cross reference to Unit 17 Gas turbine science outcome 2 assignment 1 Q1 Outcome 3.2 Materials used in gas turbines have gone through many incremental improvements since the first practical turbines were developed in the 1940s. Most recent efforts have led to improved steel alloys for use in turbine vanes, blades, and inlet blocks. material improvements have led to an increase in rotor life and reliability. Progress in gas turbine material development often came in the form of alternative stainless steel or metal alloys that had improved heat characteristics. Different parts of gas turbines use a variety of alloy metals, including varying quantities of cobalt, nickel, and chromium. In turbine compressors, manufacturers vary in their metals and manufacturing methods, but initial blades are often made with stainless steel because it is strong and easy to machine. Materials in other parts of the turbine have been changed more frequently as the...
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...into new realms of understanding. The conquest of Mars is no longer an option but a necessity. I have been tasked today to present to my audience the obstacles and solutions associated with human interplanetary travel with respect to Mars. While many current fuel and propulsions systems are purely hypothetical, the idea to propel is basically the same. The principle is based on Newton’s Third Law of Motion: For every action, there is an equal and opposite reaction. As propellant is expelled from the spacecraft, a reactionary force is acted upon the spacecraft creating movement. This can be done in many forms including chemical propellant, electricity, nuclear, and solar sails. Chemical propulsion systems are the current propulsion systems of choice in the current world’s space programs. Chemical propulsion systems contain a fuel source and oxidizing agent that are mixed and burned in a combustion chamber. As explained in Living Off the Land in Space, “The energy is released as new chemical bonds are formed in the ‘burning’ process. Channeling the energetic reaction products outward from the vehicle using a directional nozzle produces thrust (Matloff, Johnson, and Bangs 29-40).” Chemical propulsions continue to dominate the current preferred method of space travel and...
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...I NDEX SR NO. 1} 2} 3} 4} 5} 6} 7} 8} 9} 10} 11} 12} 13} 14} TOPI CS I NTRODUCTI ON NECESSI TY DUAL PI STONLESS PUM P WORKI NG OF THE PUM P DI AGRAM OF PI STONLESS PUM P ADVANTAGES APPLI CATI ONS PERFORM ANCE VALI DATI ON I STALLATI ON I N ROCKET WORKI NG M ODELOF THE PUM P GRAPH OF FLOW RATE VS. TI M E DI SADVANTAGES COCLUSI ON BI BLOGRAPHY ABSTRACT: Pistonless pump for rocket has been proved to be the most economical than piston pump or turbopump. In pistonless pumps, piston is absent. It has very much less rotating parts than that of piston pumps or turbo pumps. So, it has less friction losses and there by it helps to improve the efficiency of the engine considerably.They can be easily installed in the rocket than turbopumps.Also,it reduces the weight of rocket. This article discusses the working , advantages of pistonless pump over turbopump. Pistonless pumps are 80-90% economical than that of piston pump or turbo pumps.Nasa has manufactured such kind of pump and tested it actually,and they found it works conveneiently. I NTRODUCTI ON: NASA have developed a Low cost rocket fuel pump which has Comparable performance to turbopump at 80-90% lower cost. Perhaps the most difficult barrier to entry in the liquid rocket business is the turbo pump. A turbo pump design requires a large engineering effort and is expensive to mfg. and test. Starting a turbo pump fed rocket engine is a complex process, requiring a careful of many valves and subsystems.In fact ,Beal aerospace...
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...What is interstellar travel? Interstellar space travel is manned or unmanned space travel between different star systems, in comparison with space travel to other bodies in the same star system. It is invariably more difficult, as the time and distance scale for such an endeavour is almost unimaginable Why we want to visit other stars? The group identified five key factors as high-level motivations for the exploration of distant space: • Human survival: ideas related to creating a legacy for the human species, backing up the Earth’s biosphere, and enabling long-term survival in the face of catastrophic disasters on Earth. • Contact with other life: finding answers to whether there is other life in the universe, whether “intelligent” life exists elsewhere in the galaxy, and at a basic level, whether we are alone in the universe. • Evolution of the human species: exploration as a human imperative, expansion of human understanding and consciousness through space exploration. • Scientific discovery: breakthroughs in scientific understanding of the natural universe, a pursuit for knowledge. • Belief and faith: a search for God or the Divine, a need to explore beyond Earth’s atmosphere as a part of natural theology or as found through religious revelation. These drivers for exploration were identified through group discussion as the most significant, high-level reasons why human societies and individuals would undertake the exploration of space over long timescales...
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...CONTENTS |Topic |Page | |Newton's 1st Law: the Law of Inertia |2 | |Newton's 2nd Law: the Law of Proportionality |3 | |Newton's 3rd Law: the Law of Interaction |4-5 | |STUDENT WORKSHEET: Conversion…Force |6 | |STUDENT WORKSHEET: Conversion…Weight |7 | |STUDENT WORKSHEET: Conversion…Length |8 | |STUDENT WORKSHEET: Acceleration |9 | |STUDENT WORKSHEET: Force and Acceleration |10 | |STUDENT WORKSHEET: Force and Acceleration Exercises |11 | |STUDENT WORKSHEET: Fighting Gravity! |12 | National Science Standards: Science as Inquiry Physical Science Position...
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...John Doe Mrs. Jane Doe ENG101-01 05 Feb. 2014 America is full of odd stories and gossip that never seems to end. They are all told millions of ways and lately they seem to get extremely complicated and ever changing. Lately since the closing of NASA there have be tells of the government secretly still using NASA with help from other extreme science advances to explore the universe. The Solar Warden was born shortly after the closing of NASA in 2010 (NASA Decline and Antigravity Space Fleet."). But lately more and more independent researchers have been looking into the story of the Solar Warden. People have become boggled with questions about the phenomenon of the Solar Warden, but no definite answers have been released of the situation. According to news I ate out the Reporter for the Huffington Post, the secret Solar Warden has been kept hidden from the public since the 1980s (Perks). In 2010 reporter Darren Perks conducted at freedom of information request with the United States Department of Defense, but only ended up with an email stating, "About an hour ago I spoke to a NASA rep who confirmed this was their program and that it was terminated by the President. He also informed me that it was not a joint program with the Department of Defense." (Perks). But statements by Perks also includes that the Solar Warden also operated under the control of the United Nations (Perks). Most of Perks facts come from Gary McKinnon got him a big dick, who hacked into the...
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...I. Introduction: The purpose of this paper is an overview about the current space tourism industry with advanced developments of space vehicles. Until now, seven tourists have ridden Soyuz spacecraft, a Russian spacecraft, to the International Space Station. Capturing the potential demand of space tourism, many private companies began to introduce their new and well-designed spacecraft promising to enable tourist to travel to space. From now to the next couple of years, we are expected to see many launches including testing and commercial flights into suborbital and low Earth orbit. There are also some private companies, who were awarded by NASA for their space programs to carry astronauts to the space station. II. Virgin Galactic – Scaled Composites (Suborbital): Virgin Galactic – Scaled Composites founded by Burt Rutan designed a unique type of spacecraft. Using a mothership aircraft, the space plane will be carried to midair and then be released to launch toward the edge of the atmosphere. Using carbon composite construction, the company has introduced two version of the space plane: SpaceShipOne and SpaceShipTwo along with two model of the mothership aircraft: WhiteKnightOne and WhiteKnightTwo. (Ref 1,3) A. Spaceship: a. SpaceshipOne – WhiteKnightOne: Scaled Composites first launched the SpaceShipOne to the suborbital in 2004 while the first of WhiteKnightOne was in 2002. Overall, the WhiteKnightOne’s features are carriage and launch of payloads up to 7...
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...By: Asana Kusnadi Mid Semester Examination Table of Content 1. Background 2. Vision Statement 3. SWOT Analysis of SpaceX 4. Porter’s Five Forces Model 5. SpaceX TOWS Matrix 6. SpaceX Business Model 7. SpaceX Business Level Strategy 8. Conclusions I. Background SpaceX or Space Exploration Technologies Corporation is a space transport services company headquartered in Hawthorne, California. It was founded in 2002 by former PayPal entrepreneur and Tesla Motors CEO Elon Musk. SpaceX was founded with the goal of reducing space transportation costs and enabling the colonization of Mars. It has developed the Falcon 1 and Falcon 9 launch vehicles, both of which were designed from conception to eventually become reusable. SpaceX also developed the Dragon spacecraft, which are flown into orbit by the Falcon 9 launch vehicle, initially transporting cargo and later planned to carry humans to the International Space Station and other destinations.[1] By 2012, SpaceX had over 40 launches on its manifest representing about $4 billion in contract revenue—with many of those contracts already making progress payments to SpaceX—with both commercial and government (NASA/DOD) customers. As of December 2013, SpaceX has a total of 50 future launches under contract, two-thirds of them are for commercial customers. SpaceX's low launch prices, especially for communication satellites flying to geostationary orbit, have resulted in market pressure on...
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...Introduction Earth has a problem, overpopulation. Many scientist believe that mankind will soon grow to a population that our planet cannot sustain. The land to house, feed, and support the population is dwindling. Increases in drought and natural disasters are occurring more frequently and with increased severity. Pollution is increasing and man’s ability to consume resources is far outweighed by his ability to replace them. These are all problems shared by leaders of some and many countries. Hunger has stricken most of Africa and other places around the world. India and China make up approximately 37 percent of the world’s population. These are not problems that one has to research to find. There are public service announcements on television programming in the United States, one of the world’s superpowers and argued the most powerful nation, that state one in five American children will go to bed hungry. China has a law known commonly around the world that restricts families to one child unless pre-approved. Where do we go from here? Statement of Need Space has long been an area of curiosity for man. Upward man has found a home in the stars, Heaven, one that has yet to be fully explored. How do we do this? How does man find a place to settle when the planet he has called home since the beginning of time is slowly, but surely, dying? The solution is in the history of man himself. The human population took millennia to grow out of Africa. Slowly, man crawled...
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...Secretary of Defense Corporate Fellows Program FINAL REPORT UNITED TECHNOLOGIES CORPORATION Lt Col Clyde M. Woltman, USMC June 2002 TABLE OF CONTENTS Table of Contents I Introduction ii Chapter 1…United Technologies Corporation The Sectors…Corporation Overview 1 Corporate Strategy, Culture, Environment 2 “Most Admired”…A UTC Legacy 2 Chapter 2…Pratt & Whitney Organization 3 Strategic Planning Process 3 Road Maps 4 Transformation 5 “The Great Engine War” 6 Leaness 7 ACE 8 Competition…Lessons Learned? 10 Chapter 3…Maintaining the Edge Leadership Challenge…Transforming Culture 14 Growth…The Key to the Future 14 “Re-inventing the Business” 15 Enterprise Resource Planning Initiative 16 Strategic Approach to Managing Human Resources 19 Employee Services 20 Chapter 4…For DoD Lean Thinking in DoD 22 Achieving Competitive Excellence in DoD 22 Outsourcing…”Keeping Our Core Competencies in House 23 Employee Education 23 Life After the Military Service…Improving the Odds 25 Adages of Human Resources 25 Bibliography 26 INTRODUCTION Assignment Overview I was assigned as a Secretary of Defense Corporate Fellow to Pratt & Whitney Corporation, one of the six principal Sectors of United Technologies Corporation (UTC). My initial assignment with Pratt was to the F135 Joint Strike Fighter (JSF) Engine Program at the Military...
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...Abstract What could be more innocent than a last minute trip, on a privately-owned jet, to a privately-funded research facility, in northern Alaska to see the magnificent auroras? After Matt’s best friend and college roommate, Bartholomew Jacob Hunt, the third, convinced him that it was the chance of a lifetime, they would surely find out. During their flight to Alaska, the boys are notified that Halley’s Comet’s orbit has been altered by the sun’s photosphere and is headed straight for the research station’s space elevator. There is no time to bring in additional scientists, so Matt and Barty must be willing to help. Using a chemical rocket and magnetic sail, three of the scientists at the research center will enter space and attempt to change the orbit of Halley Comet, while Matt and Barty operate the command center with the help of the lead scientist. This is the day they single-handedly saved two planets and created a new habitable environment on Mercury’s surface. [Student’s Name] [Professor’s Name] [Class Number] [Today’s Date] The Day We Saved Two Planets 10:20am. “It’s 2068! It is a mistake to ignore an occurrence that only transpires once every 11 years. Do you know what an aurora is!? I’ll tell you what an aurora is. An aurora is a disturbance in the magnetosphere produced by solar winds (source). You see, the electrons… remember electrons, Matt? They are the charged particles we talked about in chemistry. Right. You see, the electrons collide with atoms in...
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...engineering test flight for a dozen new high-risk advanced technologies. Such technologies included SCARLET II, xenon ion engine, solar concentrator array, autonomous navigation plus two other autonomy experiments, small transponder, Ka-band solid state power amplifier, and experiments in low power electronics, power switching, and multifunctional structures. Deep Space 1 also encountered Comet Borrelly and returned the best images and other science data ever from a comet. The Deep Space 1 was the first of a series of technology demonstration probes developed by NASA’s New Millennium Program. Its primary mission was to prove innovative new technologies for future spacecraft. The project manager for Deep Space 1 was Dr. Marc Rayman of NASA’s Jet Propulsion Laboratory. While the spacecraft accomplished a planetary-class mission, the asteroid encounter was not a required aspect of the mission. The encounter was only a bonus in the primary mission. NASA approved the extended mission to Comet Wilson Harrington in August 1999. Then the spacecraft’s sole star tracker failed in November 1999. A seven-month rescue effort succeeded in recovering the capability to operate the spacecraft without the star tracker, but the rescue excluded encountering both comets. On December 18, 2001, with no further technology objectives and no further science objectives, the spacecraft was commanded into a storage configuration with the transmitter off but the receiver left on. The goal here is to present the Deep...
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...|Keller Graduate School of Management | |The Forgotten Team Member | |Case Study | | | |MGMT 591 | |Leadership & Org Behavior | |Professor: Michael Carr | |Kasheika Wilkins | |5/24/2013 | | | Part 1: Group Development ...
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...Discussion Questions: DQ#1: What are the key problems with this portion of the performance review? There are few key problems with this portion of the performance review. First of all, the review was not inclusive of what was expected of the employee. The Max only told Sue about what the issue of her “pompous attitude”. Another problem is that the review was concluded with the employee not meeting her expectation and left feeling depressed. DQ#2: How would you use the knowledge and skills you have acquired thus far in this module to redesign the meeting between Max and Sue? The first stage, according to Quinn, et. Al (2011) of the performance review is performance planning. Max should meet with his employees and discuss what is expected of them and other areas of employee concerns such as additional training required or workshop. The second stage, performance execution, Max should provide coaching and feedback on a regular basis. The next stage, performance assessment, includes how well the employees have performing and begin the necessary assessment weeks before the actual performance review. And lastly, at the day of the performance review, Max should make sure that the objectives are clear and concise to a level that the employee agrees and understands. DQ#3: What concerns, if any, do you have with Max’s conversation with Jack? What might Max have done differently? I would have verified what Jack has told me about Sue and gather all the facts before jumping...
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