Download or read book Airfields on Antarctic Glacier Ice written by Malcolm Mellor and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airfields on Antarctic Glacier Ice written by Malcolm Mellor and published by . This book was released on 1989 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hard surface Runways in Antarctica written by Malcolm Mellor and published by . This book was released on 1988 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Airfield Sites in Antarctica for Wheeled Aircraft written by Charles Swithinbank and published by . This book was released on 1991 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hard surface Runways in Antarctica written by Malcolm Mellor and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The feasibility of constructing and maintaining hard-surface snow runways at McMurdo Sound and the South Pole was studied. Existing technology was reviewed, and proposals for novel techniques and machines were put forward. It was concluded that all-season operation of heavy wheeled aircraft from snow runways is not a practical proposition for the short term. Other possibilities for all-season operation of wheeled aircraft were considered. These included: (a) a conventional runway of rock-fill and gravel, (b) rock-fill and gravel over permanent ice, (c) a runway on coastal glacier ice, (d) runways on bare glacier ice at inland locations. Rough cost estimates were made for each of the runway types that were considered. After examining the trends in Antarctic aviation, the following recommendations were offered: (1) develop a construction plan for a conventional runway at Marble Point, (2) proceed with site selection, equipment design, and development of ground transport for a wheel runway on the Ross Ice Shelf, (3) search for natural blue ice airfields at inland locations, especially locations that are not too far from the South Pole. (SDW).
Download or read book Special Report written by and published by . This book was released on 1988 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Inclusions in the Antarctic Ice Sheet and Their Significance written by Anthony J. Gow and published by . This book was released on 1975 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cores obtained to the bottom of the Antarctic Ice Sheet at Byrd Station were used to analyze the physical properties of air bubbles trapped in the ice. Parameters measured were the sizes, shapes, abundances, spatial distributions, gas volumes and pressure of bubbles, and their variations with depth in the ice sheet. Bubbles occur abundantly in the top 800 m of ice but then gradually disappear until they can no longer be detected optically below 1100 m. This disappearance is not accompanied by any significant loss of air from the ice and all available evidence indicates that the air actually diffuses into the ice in response to increasing overburden pressure. Bubble pressure measurements show that (1) bubbles with pressures exceeding about 16 bars begin to relax back to this value soon after in situ pressures are relieved by drilling, (2) further slow decompression occurs with time, and (3) the rate of decompression is controlled to some extent by the intrinsic structural properties of the ice and its thermal and deformational history. Only small variations were observed in the entrapped air content of the ice cores; they probably reflect variations in the temperature and/or pressure of the air at the time of its entrapment, but the data are not sufficient to draw any firm conclusions regarding past variations in ice sheet thickness. Only ice from the bottom 4.83 m was found to lack any detectable trace of air.
Download or read book Aviation in the Antarctic written by Henry M. Dater and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Construction Maintenance and Operation of a Glacial Runway McMurdo Station Antarctica written by George L. Blaisdell and published by . This book was released on 1998 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: On 7 February 1994, a C-141 departed Christchurch, New Zealand, and landed on the 3050 m (10,000-ft) Pegasus glacial ice runway, located on the Ross Ice Shelf 13 km (8 miles) south of McMurdo, Antarctica. This event marked the final test for a five-year development program to demonstrate the feasibility of a semipermanent glacial ice runway capable of supporting heavy wheeled aircraft at a site easily accessible to McMurdo. In the later phases of developing the glacial ice runway, numerous working flights of LC-130s operating on wheels (rather than skis) moved cargo more efficiently to the South Pole, and the LC-130 and a C-130 carried larger passenger loads to Christchurch. The primary benefit of the Pegasus runway to the U.S. Antarctic Program is its ability to support heavy wheeled aircraft for most of the period of mid-January through November. In the past, only ski-equipped aircraft could land in the McMurdo area during this time period. The Pegasus runway allows increased payloads for the LC-130 (an additional 3600-kg or 8000-lb takeoff weight when using wheels) and provides access for virtually any conventional aircraft. The technology for siting, constructing, maintaining, and operating such a runway is now well understood and is described in detail in this comprehensive report.
Download or read book CRREL Report written by and published by . This book was released on 1993 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Notes on Antarctic Aviation written by Malcolm Mellor and published by . This book was released on 1993 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Antarctic Literature written by and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Benchnotes written by and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CRREL Benchnotes written by and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The West Antarctic Ice Sheet written by and published by American Geophysical Union. This book was released on 1998 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antarctica written by John Hobbie Roscoe and published by . This book was released on 1952 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
