Facing the Heat Barrier: a History of Hypersonics
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Flying Model Rocket Catalog
Flying Model Rocket Catalog TM TABLE OF CONTENTS Model Rocket Basics . 5 Fly Big with Advanced Rockets/Pro Series II . 66 Get Started with Launch Sets . 10 Model Rocket Engine Performance Chart . 70 Easy to Build Beginner Rockets . 16 Engine Time/Thrust Curves . 72-73 Challenge Yourself a Little More! . 22 Building Supplies . 84 Payload Rockets . 30 Altitude Tracking . 82 Multi-Stage Rockets . 34 Estes Education . 86 Fun Recovery Rockets . 40 Bulk Packs for Education . 88 Designer Signature Series . 45 Lifetime Launch System . 94 Imagine New Worlds with Space Voyagers . 46 Phantom Classroom Demonstrator Rocket . 96 Destination Mars™ Rockets . 50 Rocket Science Starter Set . 98 Space Corps™ Rockets . 54 Model Rocket Safety Code . 100 Scale Model Rockets . 58 Index . 102 Welcome to the exciting world of model rocketry. now this rocket science! here is no thrill quite like launching a model rocket you have built, watching it streak skyward, reach apogee (peak altitude), then gently Treturn to earth on its parachute. In a very real sense, model rocketeers experience the same excitement felt by America’s space scientists and astronauts as they push humankind’s horizons relentlessly forward to the stars. The best way to get started is with an Estes® launch set or starter set (see pages 10-15). Each launch set has nearly everything you need to build and fly your first rocket. Estes Industries, LLC encourages membership As you increase your rocketry skills, you can progress to new and exciting in the National Association projects including multi-stage rockets, payload experiments and scale models. of Rocketry for the active Whether you are a hobby beginner or expert, Estes Industries will help you model rocketry enthusiast. -
Role of Cobalt in Waspaloy
ROLE OF COBALT IN WASPALOY G. E. Maurer L. A. Jackman J. A. Domingue Special Metals Corp., New Hartford, N.Y. 13413 Nickel was systematically substituted for cobalt in Was- paloy. M'echanical test results indicate that lower cobalt has little effect on tensile properties, but adversely affects creep rate and stress rupture life. Phase extraction studies found slight decreases in gamma prime volume fractions and in- creased M'23C6 carbide with lowes cobalt. It is suggested that changes in gamma prime volume fraction, carbide precipitation, and stacking fault energy contribute to the decrease in creep resistance. INTRODUCTION Interest in the role of specific elements in the design of nickel-base superalloys has been dramatically revitalized in the past two years. Economic and strategic considera- tions have prompted re-examination of the necessity of raw materials whose availability could be jeopardized by political unrest or resource depletion. Recently, an ele- ment of primary concern has been cobalt, which comprises from 8-19 wt.% of some of the most commonly used wrought alloys. Information on the role of cobalt in nickel-base super- alloys was found insufficient to ascertain if the specified levels of cobalt in many commercial superalloys is justi- fied. Therefore, a one variable study was initiated on the systematic replacement of cobalt by nickel in Waspaloy, which accounts for the greatest consumption of "nickel- base superalloy" cobalt. Few studies have been done on the specific reduction of cobalt in a superalloy cl.-3). The principle reference to the overall role of cobalt in wrought superalloys is by Heslop (1) who reviewed the use 43 44 / Superalloys 1980 of cobalt in Nimonic alloys. -
Nasa X-15 Program
5 24,132 6 9 NASA X-15 PROGRAM By: T.D. Barnes - NASA Contractor - 1960s NASA contractors for the X-15 program were Bendix Field Engineering followed by Unitec, Inc. The NASA High Range Tracking stations were located at Ely and Beatty Nevada with main control being at Dryden/Edwards AFB in California. Personnel at the tracking stations consisted of a Station Manager, a Technical Advisor, and field engineers for the Mod-2 Radar, Data Transmission System, Communications, Telemetry, and Plant Maintenance/Generators. NASA had a site monitor at each tracking station to monitor our contractor operations. Though supporting flights of the X-15 was their main objective, they also participated in flights of the XB-70, the three Lifting Bodies, experimental Lunar Landing vehicles, and an occasional A-12/YF-12/SR-71 Blackbird flight. On mission days a NASA van picked up each member of the crew at their residence for the 4:20 a.m. trip to the tracking station 18 miles North of Beatty on the Tonopah Highway. Upon arrival each performed preflight calibrations and setup of their various systems. The liftoff of the B-52, with the X-15 tucked beneath its wing, seldom occurred after 9:00 a.m. due to the heat effect of the Mojave Desert making it difficult for the planes to acquire altitude. At approximately 0800 hours two pilots from Dryden would proceed uprange to evaluate the condition of the dry lake beds in the event of an emergency landing of the X-15 (always buzzing our station on the way up and back). -
Water Rocket Booklet
A guide to building and understanding the physics of Water Rockets Version 1.02 June 2007 Warning: Water Rocketeering is a potentially dangerous activity and individuals following the instructions herein do so at their own risk. Exclusion of liability: NPL Management Limited cannot exclude the risk of accident and, for this reason, hereby exclude, to the maximum extent permissible by law, any and all liability for loss, damage, or harm, howsoever arising. Contents WATER ROCKETS SECTION 1: WHAT IS A WATER ROCKET? 1 SECTION 3: LAUNCHERS 9 SECTION 4: OPTIMISING ROCKET DESIGN 15 SECTION 5: TESTING YOUR ROCKET 24 SECTION 6: PHYSICS OF A WATER ROCKET 29 SECTION 7: COMPUTER SIMULATION 32 SECTION 8: SAFETY 37 SECTION 9: USEFUL INFORMATION 38 SECTION 10: SOME INTERESTING DETAILS 40 Copyright and Reproduction Michael de Podesta hereby asserts his right to be identified as author of this booklet. The copyright of this booklet is owned by NPL. Michael de Podesta and NPL grant permission to reproduce the booklet in part or in whole for any not-for-profit educational activity, but you must acknowledge both the author and the copyright owner. Acknowledgements I began writing this guide to support people entering the NPL Water Rocket Competition. So the first acknowledgement has to be to Dr. Nick McCormick, who founded the competition many years ago and who is still the driving force behind the activity at NPL. Nick’s instinct for physics and fun has brought pleasure to thousands. The inspiration to actually begin writing this document instead of just saying that someone ought to do it, was provided by Andrew Hanson. -
Twenty-First Century Space Propulsion Study
AD-A229 279A AL-TR-90-030 AD: FiaRFILE CPY Final Report T for tihe period 21st Century Space Propulsion Study 30 Jul 1987 to 30 Apr 1990 DTIC ELECTE D NOV 141990 October 1990 Author: Forward Unlimited Dr R.L. Forward RO.Box 2783 Malibu CA 90265-7783 F04611-87-C-0029 Approved for Public Release Distribution Is unlimited. The AL Technical Services Office has reviewed this report, and it Is releasable to the National Technical Information Service, where it will be available to the general public, including foreign nationals. Prepared for the: Astronautics Laboratory (AFSC) Air Force Space Technology Center Space Systems Division Air Force Systems Command Sf Edwards AFB CA 93523-5000 NOTICE When U. S. Government drawings, specifications, or other data are used for any purpose other than a definitely related Government procurement operatictt, the fact that the Govern- ment may have formulated, furnished, or in any way supphrd the said drawings, V specifications, or other data, is not to be regarded by implication or otherwise, or in any way licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use or sell any patented invention that may be related thereto. FOREWORD This final report was submitted by Forward Unlimited, Malibu CA on completion of contract F04611-87-C-0029 with the Astronautics Laboratbry (AFSC), Edwards AFB CA. AL Project Manager was Dr Franklin B. Mead, Jr.. This report has been reviewed and is approved for release and distribution in accordance with the distribution statement on the cover and on the DD Form 1473. -
The Dynamics of Syria's Civil
CHILDREN AND FAMILIES The RAND Corporation is a nonprofit institution that helps improve policy and EDUCATION AND THE ARTS decisionmaking through research and analysis. ENERGY AND ENVIRONMENT HEALTH AND HEALTH CARE This electronic document was made available from www.rand.org as a public service INFRASTRUCTURE AND of the RAND Corporation. TRANSPORTATION INTERNATIONAL AFFAIRS LAW AND BUSINESS Skip all front matter: Jump to Page 16 NATIONAL SECURITY POPULATION AND AGING PUBLIC SAFETY Support RAND SCIENCE AND TECHNOLOGY Browse Reports & Bookstore TERRORISM AND Make a charitable contribution HOMELAND SECURITY For More Information Visit RAND at www.rand.org Explore the RAND Corporation View document details Limited Electronic Distribution Rights This document and trademark(s) contained herein are protected by law as indicated in a notice appearing later in this work. This electronic representation of RAND intellectual property is provided for non- commercial use only. Unauthorized posting of RAND electronic documents to a non-RAND website is prohibited. RAND electronic documents are protected under copyright law. Permission is required from RAND to reproduce, or reuse in another form, any of our research documents for commercial use. For information on reprint and linking permissions, please see RAND Permissions. RAND perspectives (PEs) present informed perspective on a timely topic that address the challenges facing the public and private sectors. All RAND perspectives undergo rigorous peer review to ensure high standards for research quality and objectivity. Perspective C O R P O R A T I O N Expert insights on a timely policy issue The Dynamics of Syria’s Civil War Brian Michael Jenkins Principal Observations One-third of the population has fled the country or has been displaced internally. -
A Schema of Right-Wing Extremism in the United States
ICCT Policy Brief October 2019 DOI: 10.19165/2019.2.06 ISSN: 2468-0486 A Schema of Right-Wing Extremism in the United States Author: Sam Jackson Over the past two years, and in the wake of deadly attacks in Charlottesville and Pittsburgh, attention paid to right-wing extremism in the United States has grown. Most of this attention focuses on racist extremism, overlooking other forms of right-wing extremism. This article presents a schema of three main forms of right-wing extremism in the United States in order to more clearly understand the landscape: racist extremism, nativist extremism, and anti-government extremism. Additionally, it describes the two primary subcategories of anti-government extremism: the patriot/militia movement and sovereign citizens. Finally, it discusses whether this schema can be applied to right-wing extremism in non-U.S. contexts. Key words: right-wing extremism, racism, nativism, anti-government A Schema of Right-Wing Extremism in the United States Introduction Since the public emergence of the so-called “alt-right” in the United States—seen most dramatically at the “Unite the Right” rally in Charlottesville, Virginia, in August 2017—there has been increasing attention paid to right-wing extremism (RWE) in the United States, particularly racist right-wing extremism.1 Violent incidents like Robert Bowers’ attack on the Tree of Life synagogue in Pittsburgh, Pennsylvania in October 2018; the mosque shooting in Christchurch, New Zealand in March 2019; and the mass shooting at a Walmart in El Paso, Texas in August -
Raoul Walsh to Attend Opening of Retrospective Tribute at Museum
The Museum of Modern Art jl west 53 Street, New York, N.Y. 10019 Tel. 956-6100 Cable: Modernart NO. 34 FOR IMMEDIATE RELEASE RAOUL WALSH TO ATTEND OPENING OF RETROSPECTIVE TRIBUTE AT MUSEUM Raoul Walsh, 87-year-old film director whose career in motion pictures spanned more than five decades, will come to New York for the opening of a three-month retrospective of his films beginning Thursday, April 18, at The Museum of Modern Art. In a rare public appearance Mr. Walsh will attend the 8 pm screening of "Gentleman Jim," his 1942 film in which Errol Flynn portrays the boxing champion James J. Corbett. One of the giants of American filmdom, Walsh has worked in all genres — Westerns, gangster films, war pictures, adventure films, musicals — and with many of Hollywood's greatest stars — Victor McLaglen, Gloria Swanson, Douglas Fair banks, Mae West, James Cagney, Humphrey Bogart, Marlene Dietrich and Edward G. Robinson, to name just a few. It is ultimately as a director of action pictures that Walsh is best known and a growing body of critical opinion places him in the front rank with directors like Ford, Hawks, Curtiz and Wellman. Richard Schickel has called him "one of the best action directors...we've ever had" and British film critic Julian Fox has written: "Raoul Walsh, more than any other legendary figure from Hollywood's golden past, has truly lived up to the early cinema's reputation for 'action all the way'...." Walsh's penchant for action is not surprising considering he began his career more than 60 years ago as a stunt-rider in early "westerns" filmed in the New Jersey hills. -
The Walsh Brothers in Hollywood
Volume XXXX, No. 11 • January (Eanáir), 2015 The Walsh Brothers in Hollywood .........................................................................................................Raoul and George Walsh got their start wrote. The movie starred silent cinema jackrabbit jumped through a windshield as in New York City, born not to the stage superstar Anna Q. Nilsson as a society he was driving. He gave up the part (but and screen, but both made their marks woman turned social worker who aids the not the directing job), and never acted upon both - Raoul as an actor, director, and regeneration of a Bowery gang leader. again. Warner Baxter won an Oscar for the founding member of the Academy of role Walsh was originally slated to play. Walsh later directed The Thief of Motion Picture Arts and Sciences, George Bagdad (1924) starring Douglas Fairbanks Walsh would wear an eye patch for the rest as an actor. and Anna May Wong, and What Price of his life. Raoul Walsh was born in New York as Glory? (1926) starring Victor McLaglen In the early days of sound with Fox, Albert Edward Walsh to Elizabeth T. and Dolores del Río. Walsh directed the first widescreen Bruff, the daughter of Irish Catholic spectacle, The Big Trail (1930), an epic immigrants, and Thomas W. Walsh, an wagon train western shot on location Englishman of Irish descent. Like his across the West. The movie starred then younger brother, he was part of Omega unknown John Wayne, whom Walsh Gamma Delta during his high school discovered as prop-boy Marion Morrison. days. Growing up in New York, Raoul Walsh renamed Morrison after Revolu- Walsh was also a friend of the Barrymore tionary War general Mad Anthony Wayne, family. -
Weld Cracking of Precipitation Hardening Ni-Based Superalloys
THESIS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Weld Cracking of Precipitation Hardening Ni-based Superalloys Investigation of repair welding characteristics and susceptibility towards strain age cracking Fabian Hanning Department of Industrial and Materials Science CHALMERS UNIVERSITY OF TECHNOLOGY Gothenburg, Sweden i Weld Cracking of Precipitation Hardening Ni-based Superalloys Investigation of repair welding characteristics and susceptibility towards strain age cracking Fabian Hanning ISBN 978-91-7905-258-4 © Fabian Hanning, 2020 Doktorsavhandlingar vid Chalmers tekniska högskola Ny serie nr 4725 ISSN 0346-718X Department of Industrial and Materials Science Chalmers University of Technology SE-412 96 Gothenburg Sweden Telephone + 46 (0)31-772 1000 Printed by Chalmers digitaltryck Gothenburg, Sweden 2020 ii Weld Cracking of Precipitation Hardening Ni-based Superalloys Investigation of repair welding characteristics and susceptibility towards strain age cracking Fabian Hanning Department of Industrial and Materials Science Chalmers University of Technology Abstract High temperature resistance and strength requirements make nickel-based superalloys the material of choice for the hot section of aero engines. Fabrication in terms of combining wrought and cast parts in the manufacturing of hot structural components enables component optimisation via the use of wrought high-strength parts, where geometrical constraints allow, and cast parts to produce complex geometries. Such an approach requires that the materials involved are weldable. Due to the complex microstructure of precipitation hardening nickel-based superalloys, welding comes with the risk of weld cracking, more specifically solidification cracking, heat affected zone (HAZ) liquation cracking and strain age cracking (SAC). While the first two types require a liquid phase to be present, SAC occurs during heating to post-weld heat treatment, in which age-hardening reactions coincide with the relaxation of weld residual stresses. -
Changes to the Database Document
Additions and Deletions for the 12-1-18 Release This version of the Database includes launches through November 30, 2018. There are currently 1,957 active satellites in the database. The changes to this version of the database include: • The addition of 141satellites • The deletion of 71 satellites • The addition of and corrections to some satellite data Satellites Removed Echostar-1 – 1995-073A Palapa C2 -- 1996-030A Measat-2 – 1996-063B Iridium 12 – 1997-030B Iridium 10 – 1997-030D Iridium 15 – 1997-034A Iridium 18 -- 1997-034D ABS-3 -- 1997-042A Iridium 25 – 1997-043B Iridium 37 – 1997-056D Iridium 41 – 1997-069B JCSat-1B – 1997-075A Iridium 47 – 1997-082C Globalstar FM4 – 1998-008B Iridium 52 – 1998-010A Iridium 56 – 1998-010B Iridium 50 – 1998-010D Iridium 53 – 1998-010E Iridium 62 -- 1998-021A Iridium 65 – 1998-021D Iridium 66 – 1998-021E Iridium 67 – 1998-021F Iridium 68 – 1998-021G Iridium 72 – 1998-032B Iridium 75 – 1998-032E Iridium 76 – 1998-048B Iridium 81 – 1998-051B Iridium 80 – 1998-051C Iridium 86 – 1998-066B Iridium 84 – 1998-066D Iridium 83 – 1998-066E Dove 2e-1 – 1998-067JD Dove 2e-5 – 1998-067JN Dove 2ep-5 – 1998-067JR Dove 2ep-14 – 1998-067KJ Dove 2ep-15 – 1998-067KL Dove 2ep-17 – 1998-067KN Dove 2ep-18 – 1998-067KM Dove 23p-20 – 1998-067KP Dove 2ep-19 – 1998-067KQ Lemur-2F20 -- 1998-067LD i-INSPIRE-2 – 1998-067ML Tomsk-TPU-120 -- 1998-067MZ Tanyusha 1 -- 1998-067NA Tanyusha 2 -- 1998-067NB TNS-0-2 Nanosputnik -- 1998-067ND SIMPL – 1998-067NF Iridium 20A – 1998-074A Iridium 11A – 1998-074B Globalstar M023 – 1999-004A -
The Rise and Fall of Missiles in the Us Air Force, 1957-1967
FLAMEOUT: THE RISE AND FALL OF MISSILES IN THE U.S. AIR FORCE, 1957-1967 A Dissertation by DAVID WILLIAM BATH Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Joseph G. Dawson, III Committee Members, Terry H. Anderson Olga Dror Angela Pulley Hudson James Burk Head of Department, David Vaught December 2015 Major Subject: History Copyright 2015 David William Bath ABSTRACT This dissertation documents how the U.S. national perspective toward ballistic nuclear missiles changed dramatically between 1957 and 1967 and how the actions and attitudes of this time brought about long term difficulties for the nation, the Air Force, and the missile community. In 1957, national leaders believed that ballistic missiles would replace the manned bomber and be used to win an anticipated third world war between communist and capitalist nations. Only ten years later, the United States was deep into a limited war in Vietnam and had all but proscribed the use of nuclear missiles. This dissertation uses oral histories, memoirs, service school theses, and formerly classified government documents and histories to determine how and why the nation changed its outlook on nuclear ballistic missiles so quickly. The dissertation contends that because scientists and engineers created the revolutionary weapon at the beginning of the Cold War, when the U.S. and U.S.S.R. were struggling for influence and power, many national leaders urged the military to design and build nuclear ballistic missiles before the Soviet Union could do so.