Download or read book Preliminary Design and Evaluation of a Tethered Balloon System with a Constant Volume Torus Envelope for Low Altitude Operations in Light Winds written by Khoy Noel Callwood and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document proposes the use of a tethered aerostat system with a constant volume, torus-shaped envelope as a platform for atmospheric monitoring at low altitudes. Manufacturers can make balloons into a variety of shapes, but the most common are spherical and ellipsoidal. Tethered balloons and constant volume balloons have been in use for years but not in combination. This document serves to guide the reader through the preliminary development and evaluation of a tethered balloon system with a constant volume torus envelope. This design study concluded that a balloon system using a tethered, constant volume torus envelope is viable but the envelope must be large to withstand low to moderate winds.
Download or read book Computer Programs for Tethered balloon System Design and Performance Evaluation written by John B. Wright and published by . This book was released on 1976 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six computer programs were developed to provide both standardized methods for solution of typical tethered-balloon performance problems and improved techniques sufficient to study the very high altitude tethered-balloon system design problem. The programs are written for an HP-9810A desk computer but are fully documented for conversion to other types of equipment. Preliminary results are shown indicating the feasibility of a balloon tethered at an altitude of 20 km.
Download or read book The Constancy of the Winds in the Lower Stratosphere and Constant level Balloon Flight Planning written by George F. Nolan and published by . This book was released on 1965 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Ballooning written by Nobuyuki Yajima and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to introduce scientific ballooning to the many people who are interested in the use of balloons for scientific applications. The book offers a basic understanding of the engineering details and the scientific research giving rise to balloon activities going on today. Above all, the book will serve as a guidebook for young scientists and researchers seeking to become involved in space science and technology by participating in balloon projects. The book deals with three types of balloons: large stratospheric balloons used for scientific purposes, rubber balloons used for aerological observations, and planetary balloons to be used in the atmospheres of other planets. The book provides many figures and photographs, and offers a systematic description of balloon technologies and related matters from historical background to current research topics. The contents include a theoretical discussion of ballon shape design, analysis and synthesis of flight dynamics, actual launching procedure, flight operations, and typical applications of ballooning in various scientific fields. Detailed meteorological descriptions, especially of the Earth's stratosphere and the atmosphere of other planets, are provided for investigating actual flight behavior.
Download or read book Dynamic Analysis of an Ascending High Altitude Tethered Balloon System written by Debora A. Grant and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mathematical Model and Computer Program for the Ascent and Descent of High altitude Tethered Balloons Schedule Sub line Item 1ad written by George R Doyle (Jr) and published by . This book was released on 1968 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of the preliminary study indicate that it is feasible to launch and retrieve high-altitude balloons under certain conditions. It was shown that a 30 million cu ft balloon can be launched in a Summer I-75 percent wind profile at 2000 ft/min, and retrieved in the same wind at -200 ft/min with 20 percent of the helium valved off. Although launch and retrieval are possible in the Winter I wind profile, it is more restricted. The 79 million cu ft balloon in the Winter I 25 percent wind show results similar to the 30 million cu ft balloon in the Summer I 75 percent wind. The results of the feasibility study can be used as preliminary design criteria for components of the tethered balloon-systems-balloon, tether and winch. (Author).
Download or read book High altitude Tethered Balloon Systems Study Schedule Sub line Item Iaa written by James A. Menke and published by . This book was released on 1967 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various tethered balloon systems were investigated to determine what combination of balloons and cables has the greatest potential for high-altitude tethering. Aerodynamic characteristics, stress, weight, and other design factors were evaluated for five different balloon shapes. Cable profile parameters were evaluated considering weight, cross section area, and breaking strength of the three cable types. Data are presented in graphic form which relates balloon quantities to cable profile quantities for operation in winter and summer at two different geographic locations and float altitudes of 50,000 and 100,000 feet. Results show that balloons can be tethered at altitudes above 50,000 feet, but that no one system is best for all wind and altitude conditions. Round or natural shape balloons provide better performance in light winds at high altitudes, whereas aerodynamically shaped balloons provide better performance in high winds at intermediate altitudes. Cables made of glass fibers and epoxy resin provide better overall performance for all wind and altitude conditions investigated than either nylon or steel. In a few cases where net lift at the top of the cable is very small, steel wire appears to be better. (Author).
Download or read book Mathematical Model and Computer Program for the Ascent and Descent of High altitude Tethered Balloons written by George R. Doyle and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of this preliminary study indicate that it is feasible to launch and retrieve high-altitude balloons under certain conditions. It has been shown that a 30 million ft3 balloon can be launched in a Summer I-75 percent wind profile at 2000 ft/min, and retrieved in the same wind at -200 ft/min with 20 percent of the helium valved off. Although launch and retrieval are possible in the Winter I wind profile, it is more restricted. The 79 million ft3 balloon in the Winter I 25 percent wind show results similar to the 30 million ft3 balloon in the Summer I 75 percent wind. The results of this feasibility study can be used as preliminary design criteria for components of the tethered balloon-systems-balloon, tether and winch.
Download or read book Environmental Factors Affecting Altitude Performance and Control of Constant volume Balloons written by H. J. Mastenbrook and published by . This book was released on 1959 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Excession written by Iain M. Banks and published by Orbit. This book was released on 2008-09-04 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The novels of Iain M. Banks have forever changed the face of modern science fiction. His Culture books combine breathtaking imagination with exceptional storytelling, and have secured his reputation as one of the most extraordinary and influential writers in the genre. 'Banks is a phenomenon' William Gibson Two and a half millennia ago in a remote corner of space, beside a trillion-year-old dying sun from a different universe, the artifact appeared. It was a perfect black-body sphere, and it did nothing. Then it disappeared. Now it is back. Diplomat Genar-Hofoen of Special Circumstances is sent to investigate but, sidetracked by an old flame and the spoiled-brat operative Ulver Seich, and faced with the systematic depravities of a race who call themselves the Affront, it's anyone's guess whether he'll succeed . . . Praise for the Culture series: 'Epic in scope, ambitious in its ideas and absorbing in its execution' Independent on Sunday 'Banks has created one of the most enduring and endearing visions of the future' Guardian 'Jam-packed with extraordinary invention' Scotsman 'Compulsive reading' Sunday Telegraph The Culture series: Consider Phlebas The Player of Games Use of Weapons Excession Inversions Look to Windward Matter Surface Detail The Hydrogen Sonata The State of the Art Other books by Iain M. Banks: Against a Dark Background Feersum Endjinn The Algebraist Also now available: The Culture: The Drawings - an extraordinary collection of original illustrations faithfully reproduced from sketchbooks Banks kept in the 1970s and 80s, depicting the ships, habitats, geography, weapons and language of Banks' Culture series of novels in incredible detail.
Download or read book Handbook of Supersonic Aerodynamics written by Johns Hopkins University. Applied Physics Laboratory and published by . This book was released on 1952 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Anatomy of the Gyroscope written by Frank W. Cousins and published by . This book was released on 1988 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation and Health written by Thormod Henriksen and published by CRC Press. This book was released on 2002-09-05 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation and the effects of radioactivity have been known for more than 100 years. International research spanning this period has yielded a great deal of information about radiation and its biological effects and this activity has resulted in the discovery of many applications in medicine and industry including cancer therapy, medical diagnostics
Download or read book Scientific Ballooning written by and published by . This book was released on 1962 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airship Technology written by G. A. Khoury and published by Cambridge University Press. This book was released on 2004-08-19 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique and indispensable guide to modern airship design and operation, for researchers and professionals working in mechanical and aerospace engineering.
Download or read book Drifting on Alien Winds written by Michael Carroll and published by Springer Science & Business Media. This book was released on 2011-02-15 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since the Montgolfier's hot air balloon carried a chicken, a goat, and a duck into the Parisian skies, scientists have dreamed of contraptions to explore the atmosphere. With the advent of the space age, new airborne inventions were needed. From the Soviet Venus balloons to the advanced studies of blimps and airplanes for the atmospheres of Mars and Titan, Drifting on Alien Winds surveys the many creative and often wacky ideas for exploring alien skies. Through historical photographs and stunning original paintings by the author, readers also explore the weather on planets and moons, from the simmering acid-laden winds of Venus to liquid methane-soaked skies of Titan.
Download or read book Earths of Distant Suns written by Michael Carroll and published by Springer. This book was released on 2016-10-03 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the latest missions results and supported by commissioned artwork, this book explores the possible lessons we may learn from exoplanets. As the number of known Earth-like objects grows significantly, the author explores what is known about the growing roster of "pale blue dots" far afield. Aided by an increased sensitivity of the existing observatories, recent discoveries by Keck, the Hubble Space Telescope, and Kepler are examined. These findings, once thought to be closer to the realm of science fiction, have fired the imaginations of the general public as well as scientists. All of us are mesmerized by the possibility of other Earth-like worlds out there. Author Michael Carroll asks the tough questions of what the expected gain is from identifying these Earth analogs spread across the Universe and the reasons for studying them. Potentially, they could teach us about our own climate and Solar System. Also explored are the more remote options of communication between or even travel to these distant yet perhaps not so dissimilar worlds.
