GAO-20-121, NASA Commercial Crew Programs: Significant Work
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Validation of Wind Tunnel Test and Cfd Techniques for Retro-Propulsion (Retpro): Overview on a Project Within the Future Launchers Preparatory Programme (Flpp)
VALIDATION OF WIND TUNNEL TEST AND CFD TECHNIQUES FOR RETRO-PROPULSION (RETPRO): OVERVIEW ON A PROJECT WITHIN THE FUTURE LAUNCHERS PREPARATORY PROGRAMME (FLPP) D. Kirchheck, A. Marwege, J. Klevanski, J. Riehmer, A. Gulhan¨ German Aerospace Center (DLR) Supersonic and Hypersonic Technologies Department Cologne, Germany S. Karl O. Gloth German Aerospace Center (DLR) enGits GmbH Spacecraft Department Todtnau, Germany Gottingen,¨ Germany ABSTRACT and landing (VTVL) spacecraft, assisted by retro-propulsion. Up to now, in Europe, knowledge and expertise in that field, The RETPRO project is a 2-years activity, led by the Ger- though constantly growing, is still limited. Systematic stud- man Aerospace Center (DLR) in the frame of ESA’s Future ies were conducted to compare concepts for possible future Launchers Preparatory Program (FLPP), to close the gap of European launchers [2, 3], and activities on detailed inves- knowledge on aerodynamics and aero-thermodynamics of tigations of system components of VTVL re-usable launch retro-propulsion assisted landings for future concepts in Eu- vehicles (RLV) recently started in the RETALT project [4, 5]. rope. The paper gives an overview on the goals, strategy, and Nevertheless, validated knowledge on the aerodynamic current status of the project, aiming for the validation of inno- and aerothermal characteristics of such vehicles is still lim- vative WTT and CFD tools for retro-propulsion applications. ited to a small amount of experimental and numerical inves- Index Terms— RETPRO, retro-propulsion, launcher tigations mostly on lower altitude VTVL trajectories, e. g. aero-thermodynamics, wind tunnel testing, CFD validation within the CALLISTO project [6, 7, 8]. Other studies were conducted to analyze the aerothermodynamics of a simplified generic Falcon 9 geometry during its re-entry and landing 1. -
Reusable Launch Vehicle Technology Program{
Acta Astronautica Vol. 41, No. 11, pp. 777±790, 1997 # 1998 Published by Elsevier Science Ltd. All rights reserved Printed in Great Britain PII: S0094-5765(97)00197-5 0094-5765/98 $19.00 + 0.00 REUSABLE LAUNCH VEHICLE TECHNOLOGY PROGRAM{ DELMA C. FREEMAN{ JR. and THEODORE A. TALAY} NASA Langley Research Center, Hampton, Virginia 23681-0001, USA R. EUGENE AUSTIN} NASA Marshall Space Flight Center, Marshall Space Flight Center, Alabama 35812-1000, USA (Received 25 April 1997) AbstractÐIndustry/NASA reusable launch vehicle (RLV) technology program eorts are underway to design, test, and develop technologies and concepts for viable commercial launch systems that also satisfy national needs at acceptable recurring costs. Signi®cant progress has been made in understanding the technical challenges of fully reusable launch systems and the accompanying management and oper- ational approaches for achieving a low-cost program. This paper reviews the current status of the RLV technology program including the DC-XA, X-33 and X-34 ¯ight systems and associated technology programs. It addresses the speci®c technologies being tested that address the technical and operability challenges of reusable launch systems including reusable cryogenic propellant tanks, composite structures, thermal protection systems, improved propul- sion, and subsystem operability enhancements. The recently concluded DC-XA test program demon- strated some of these technologies in ground and ¯ight tests. Contracts were awarded recently for both the X-33 and X-34 ¯ight demonstrator systems. The Orbital Sciences Corporation X-34 ¯ight test ve- hicle will demonstrate an air-launched reusable vehicle capable of ¯ight to speeds of Mach 8. -
IAF-01-T.1.O1 Progress on the International Space Station
https://ntrs.nasa.gov/search.jsp?R=20150020985 2019-08-31T05:38:38+00:00Z IAF-01-T.1.O1 Progress on the International Space Station - We're Part Way up the Mountain John-David F. Bartoe and Thomas Holloway NASA Johnson Space Center, Houston, Texas, USA The first phase of the International Space Station construction has been completed, and research has begun. Russian, U.S., and Canadian hardware is on orbit, ard Italian logistics modules have visited often. With the delivery of the U.S. Laboratory, Destiny, significant research capability is in place, and dozens of U.S. and Russian experiments have been conducted. Crew members have been on orbit continuously since November 2000. Several "bumps in the road" have occurred along the way, and each has been systematically overcome. Enormous amounts of hardware and software are being developed by the International Space Station partners and participants around the world and are largely on schedule for launch. Significant progress has been made in the testing of completed elements at launch sites in the United States and Kazakhstan. Over 250,000 kg of flight hardware have been delivered to the Kennedy Space Center and integrated testing of several elements wired together has progressed extremely well. Mission control centers are fully functioning in Houston, Moscow, and Canada, and operations centers Darmstadt, Tsukuba, Turino, and Huntsville will be going on line as they are required. Extensive coordination efforts continue among the space agencies of the five partners and two participants, involving 16 nations. All of them continue to face their own challenges and have achieved significant successes. -
A Review of Current Research in Subscale Flight Testing and Analysis of Its Main Practical Challenges
aerospace Article A Review of Current Research in Subscale Flight Testing and Analysis of Its Main Practical Challenges Alejandro Sobron * , David Lundström and Petter Krus Department of Management and Engineering, Division of Fluid and Mechatronic Systems, Linköping University, SE-58183 Linköping, Sweden; [email protected] (D.L.); [email protected] (P.K.) * Correspondence: [email protected]; Tel.: +46-1328-1893 Abstract: Testing of untethered subscale models, often referred to as subscale flight testing, has traditionally had a relatively minor, yet relevant use in aeronautical research and development. As recent advances in electronics, rapid prototyping and unmanned-vehicle technologies expand its capabilities and lower its cost, this experimental method is seeing growing interest across academia and the industry. However, subscale models cannot meet all similarity conditions required for simulating full-scale flight. This leads to a variety of approaches to scaling and to other alternative applications. Through a literature review and analysis of different scaling strategies, this study presents an overall picture of how subscale flight testing has been used in recent years and synthesises its main issues and practical limitations. Results show that, while the estimation of full-scale characteristics is still an interesting application within certain flight conditions, subscale models are progressively taking a broader role as low-cost technology-testing platforms with relaxed similarity constraints. Different approaches to tackle the identified practical challenges, implemented both by the authors and by other organisations, are discussed and evaluated through flight experiments. Citation: Sobron, A.; Lundström, D.; Keywords: subscale flight testing; similarity; scale model; remotely piloted aircraft; demonstration; Krus, P. -
+ Part 10: Test and Evaluation
10. Test and Evaluation 10.1 Approach Architecture Design, Development, Test, and Evaluation (DDT&E) schedule, costs, and risk are highly dependent on the integrated test and evaluation approach for each of the major elements. As a part of the Exploration Systems Architecture Study (ESAS), a top-level test and evaluation plan, including individual flight test objectives, was developed and is summarized in this section. The test and evaluation plan described here is derived from the Apollo Flight Test Program of the 1960s. A more detailed test and evaluation plan will be based on detailed verification requirements and objectives documented in specifications and verification plans. In order to support schedule, cost, and risk assessments for the reference ESAS architecture, an integrated test and evaluation plan was developed to identify the number and type of major test articles (flight and ground) and the timing and objectives of each major flight test, including facilities and equipment required to support those tests. This initial plan is based on the Apollo Program and the ESAS Ground Rules and Assumptions (GR&As)—including the human- rating requirements from NASA Procedural Requirements (NPR) 8705.2A, Human-Rating Requirements for Space Systems. 10. Test and Evaluation 645 10.2 Ground Rules and Assumptions ESAS GR&As establish the initial set of key constraints to testing. Although all ESAS GR&As are considered, the specific ones listed below are particularly significant, as they deal with schedule and testing/qualification assumptions. • The crew launch system shall facilitate crew survival using abort and escape. There will be three all-up tests of the Launch Abort System (LAS). -
Get Ready to Launch! with NASA's Commercial Crew
Get ready to LAUNCH! with NASA’s Commercial Crew What is What are they Where are they Commercial Crew? launching? going? Boeing SpaceX CST-100 Starliner Crew Dragon National Aeronautics and Space Administration www.nasa.gov SP-2019-04-575-KSC Boeing Crew Flight Test SpaceX Demo 2 Nicole Aunapu Mann A NEW SPACE AGE Bob Behnken NASA Astronaut NASA’s Commercial Crew Program spacecraft and rockets will carry up to four astronauts NASA Astronaut Marine Corps Air Force Colonel and about 220 pounds of cargo to and from the International Space Station. Commercial Lieutenant Colonel crew will resume human spaceflight launches from the United States and provide the nation Flew aboard space shuttle Endeavour twice as a Mission Selected as an Astronaut in 2013, with two unique spacecraft, two human-rated rockets and the necessary ground support this is Nicole’s first spaceflight. Specialist, first on STS-123 and systems. NASA and our commercial partners, Boeing and SpaceX, are working together to then on STS-130. open access to low-Earth orbit. Chris Ferguson Boeing Astronaut BUILDING A NEW AMERICAN CAPABILITY Doug Hurley Navy Captain (retired) NASA’s Commercial Crew Program has been redefining space system development for NASA Astronaut Marine Corps Colonel Piloted space shuttle Atlantis low-Earth orbit by forming strong public-private partnerships with the aerospace industry to for STS-115, and commanded encourage innovation while maintaining NASA’s high safety standards and leveraging NASA’s (retired) shuttle Endeavour on STS-126 Piloted space shuttle Endeavor and Atlantis on STS-135, the 50 plus years of spaceflight experience. -
The International Space Station and the Space Shuttle
Order Code RL33568 The International Space Station and the Space Shuttle Updated November 9, 2007 Carl E. Behrens Specialist in Energy Policy Resources, Science, and Industry Division The International Space Station and the Space Shuttle Summary The International Space Station (ISS) program began in 1993, with Russia joining the United States, Europe, Japan, and Canada. Crews have occupied ISS on a 4-6 month rotating basis since November 2000. The U.S. Space Shuttle, which first flew in April 1981, has been the major vehicle taking crews and cargo back and forth to ISS, but the shuttle system has encountered difficulties since the Columbia disaster in 2003. Russian Soyuz spacecraft are also used to take crews to and from ISS, and Russian Progress spacecraft deliver cargo, but cannot return anything to Earth, since they are not designed to survive reentry into the Earth’s atmosphere. A Soyuz is always attached to the station as a lifeboat in case of an emergency. President Bush, prompted in part by the Columbia tragedy, made a major space policy address on January 14, 2004, directing NASA to focus its activities on returning humans to the Moon and someday sending them to Mars. Included in this “Vision for Space Exploration” is a plan to retire the space shuttle in 2010. The President said the United States would fulfill its commitments to its space station partners, but the details of how to accomplish that without the shuttle were not announced. The shuttle Discovery was launched on July 4, 2006, and returned safely to Earth on July 17. -
Corporate Profile
2013 : Epsilon Launch Vehicle 2009 : International Space Station 1997 : M-V Launch Vehicle 1955 : The First Launched Pencil Rocket Corporate Profile Looking Ahead to Future Progress IHI Aerospace (IA) is carrying out the development, manufacture, and sales of rocket projectiles, and has been contributing in a big way to the indigenous space development in Japan. We started research on rocket projectiles in 1953. Now we have become a leading comprehensive manufacturer carrying out development and manufacture of rocket projectiles in Japan, and are active in a large number of fields such as rockets for scientific observation, rockets for launching practical satellites, and defense-related systems, etc. In the space science field, we cooperate with the Japan Aerospace Exploration Agency (JAXA) to develop and manufacture various types of observational rockets named K (Kappa), L (Lambda), and S (Sounding), and the M (Mu) rockets. With the M rockets, we have contributed to the launch of many scientific satellites. In 2013, efforts resulted in the successful launch of an Epsilon Rocket prototype, a next-generation solid rocket which inherited the 2 technologies of all the aforementioned rockets. In the practical satellite booster rocket field, We cooperates with the JAXA and has responsibilities in the solid propellant field including rocket boosters, upper-stage motors in development of the N, H-I, H-II, and H-IIA H-IIB rockets. We have also achieved excellent results in development of rockets for material experiments and recovery systems, as well as the development of equipment for use in a space environment or experimentation. In the defense field, we have developed and manufactured a variety of rocket systems and rocket motors for guided missiles, playing an important role in Japanese defense. -
Space Debris
IADC-11-04 April 2013 Space Debris IADC Assessment Report for 2010 Issued by the IADC Steering Group Table of Contents 1. Foreword .......................................................................... 1 2. IADC Highlights ................................................................ 2 3. Space Debris Activities in the United Nations ................... 4 4. Earth Satellite Population .................................................. 6 5. Satellite Launches, Reentries and Retirements ................ 10 6. Satellite Fragmentations ................................................... 15 7. Collision Avoidance .......................................................... 17 8. Orbital Debris Removal ..................................................... 18 9. Major Meetings Addressing Space Debris ........................ 20 Appendix: Satellite Break-ups, 2000-2010 ............................ 22 IADC Assessment Report for 2010 i Acronyms ADR Active Debris Removal ASI Italian Space Agency CNES Centre National d’Etudes Spatiales (France) CNSA China National Space Agency CSA Canadian Space Agency COPUOS Committee on the Peaceful Uses of Outer Space, United Nations DLR German Aerospace Center ESA European Space Agency GEO Geosynchronous Orbit region (region near 35,786 km altitude where the orbital period of a satellite matches that of the rotation rate of the Earth) IADC Inter-Agency Space Debris Coordination Committee ISRO Indian Space Research Organization ISS International Space Station JAXA Japan Aerospace Exploration Agency LEO Low -
Commercial Orbital Transportation Services
National Aeronautics and Space Administration Commercial Orbital Transportation Services A New Era in Spaceflight NASA/SP-2014-617 Commercial Orbital Transportation Services A New Era in Spaceflight On the cover: Background photo: The terminator—the line separating the sunlit side of Earth from the side in darkness—marks the changeover between day and night on the ground. By establishing government-industry partnerships, the Commercial Orbital Transportation Services (COTS) program marked a change from the traditional way NASA had worked. Inset photos, right: The COTS program supported two U.S. companies in their efforts to design and build transportation systems to carry cargo to low-Earth orbit. (Top photo—Credit: SpaceX) SpaceX launched its Falcon 9 rocket on May 22, 2012, from Cape Canaveral, Florida. (Second photo) Three days later, the company successfully completed the mission that sent its Dragon spacecraft to the Station. (Third photo—Credit: NASA/Bill Ingalls) Orbital Sciences Corp. sent its Antares rocket on its test flight on April 21, 2013, from a new launchpad on Virginia’s eastern shore. Later that year, the second Antares lifted off with Orbital’s cargo capsule, (Fourth photo) the Cygnus, that berthed with the ISS on September 29, 2013. Both companies successfully proved the capability to deliver cargo to the International Space Station by U.S. commercial companies and began a new era of spaceflight. ISS photo, center left: Benefiting from the success of the partnerships is the International Space Station, pictured as seen by the last Space Shuttle crew that visited the orbiting laboratory (July 19, 2011). More photos of the ISS are featured on the first pages of each chapter. -
Building and Maintaining the International Space Station (ISS)
/ Building and maintaining the International Space Station (ISS) is a very complex task. An international fleet of space vehicles launches ISS components; rotates crews; provides logistical support; and replenishes propellant, items for science experi- ments, and other necessary supplies and equipment. The Space Shuttle must be used to deliver most ISS modules and major components. All of these important deliveries sustain a constant supply line that is crucial to the development and maintenance of the International Space Station. The fleet is also responsible for returning experiment results to Earth and for removing trash and waste from the ISS. Currently, transport vehicles are launched from two sites on transportation logistics Earth. In the future, the number of launch sites will increase to four or more. Future plans also include new commercial trans- ports that will take over the role of U.S. ISS logistical support. INTERNATIONAL SPACE STATION GUIDE TRANSPORTATION/LOGISTICS 39 LAUNCH VEHICLES Soyuz Proton H-II Ariane Shuttle Roscosmos JAXA ESA NASA Russia Japan Europe United States Russia Japan EuRopE u.s. soyuz sL-4 proton sL-12 H-ii ariane 5 space shuttle First launch 1957 1965 1996 1996 1981 1963 (Soyuz variant) Launch site(s) Baikonur Baikonur Tanegashima Guiana Kennedy Space Center Cosmodrome Cosmodrome Space Center Space Center Launch performance 7,150 kg 20,000 kg 16,500 kg 18,000 kg 18,600 kg payload capacity (15,750 lb) (44,000 lb) (36,400 lb) (39,700 lb) (41,000 lb) 105,000 kg (230,000 lb), orbiter only Return performance -
Flight Engineer Knowledge Test Guide
AC 63-1 FLIGHT ENGINEER KNOWLEDGE TEST GUIDE U.S. Department of Transportation Federal Aviation Administration 1 FLIGHT ENGINEER KNOWLEDGE TEST GUIDE 1995 U.S. DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION Flight Standards Service 2 PREFACE The Flight Standards Service of the Federal Aviation Administration (FAA) has developed this guide to help applicants meet the knowledge requirements for the computer administered tests for flight engineer turbojet, turboprop, and reciprocating class certification. This guide contains information about the knowledge test eligibility requirements, test descriptions, testing and retesting procedures, and sample test questions with answers. As a convenience to the applicant, the eligibility requirements for the oral and flight tests are included. Appendix 1 provides a list of reference materials and subject matter knowledge codes, and computer testing designees. Changes to the subject matter knowledge code list will be published as a separate advisory circular. The sample questions and answers in this guide are predicated on Federal Aviation Regulations (FAR's) and references that were current at the time of publication. Questions and answers in the computer administered knowledge tests are updated when changes are made to these reference materials. The flight engineer test question bank and subject matter knowledge code list for all airmen certificates and ratings, with changes, may be obtained by computer access from FedWorld at (703) 321-3339. This bulletin board service is provided by the U.S. Department of Commerce, 24 hours a day, 7 days per week. For technical assistance regarding computer requirements for this service, contact the FedWorld help desk at (703) 487-4608 from 7:30 a.m.