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Aircraft accidents --- McDonnell Douglas aircraft --- Accidents. --- Alaska Airlines.
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Aircraft accidents --- McDonnell Douglas aircraft --- Accidents --- Investigation. --- United Parcel Service --- Accidents --- Investigation.
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McDonnell Douglas aircraft --- Maintenance and repair --- Costs --- Evaluation. --- United States. --- Appropriations and expenditures --- Evaluation.
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Aircraft operations on soft fields are limited due to field rutting. Each subsequent aircraft pass, defined as one takeoff and one landing, increases field rutting until the field reaches a point where further aircraft operations are no longer permissible. The ability of aircraft to operate on soft fields is often expressed as a function of aircraft landing weight and the California Bearing Ratio (CBR) of the field, which measures the ability the soil to resist compressive loads. Because soft fields can support only a limited number of takeoffs and landings, it is important to understand how to maximize the cargo throughput at these soft fields. This document shows that there exists an optimum landing weight that allows for maximum cargo delivery. This optimum landing weight is found to be constant and independent of field CBR. One of the three objectives of this study was to inform important analytic tradeoffs. Understanding the ability of aircraft to operate from soft fields is one of these important trade-offs. This document details the mathematical calculations used to determine the optimum landing weight that allows for maximum cargo delivery.
Airlift, Military --- C-17 (Jet transport) --- Air bases, American --- Military & Naval Science --- Law, Politics & Government --- Military Administration --- Planning --- American air bases --- Globemaster III (Jet transport) --- Air transport, Military --- Military airlift --- Jet planes, Military --- Jet transports --- McDonnell Douglas aircraft --- Aeronautics, Military --- Transportation, Military
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The current strategic airlift fleet will be reaching the end of its service life in the next few decades, which has raised concerns about the cost and possible budget spike that would result from the need to recapitalize that fleet. This monograph presents the results of a cost-effectiveness analysis to determine the best way to recapitalize the USAF intertheater (strategic) airlift fleet. The authors examined a broad range of aircraft alternatives, including existing and emerging technologies, and permutations of USAF plans for the current fleet with a view to meeting projected requirements while minimizing life-cycle costs and smoothing out spending peaks. The expected demand for airlift was modeled against the capabilities of each alternative aircraft to form a set of alternative fleet compositions to meet that demand. The authors then estimated the cost for each of the options to determine those that were the most cost-effective. The most cost-effective option involved a highly advanced conceptual design, which represents significant risk. The next most cost-effective options hedge this risk by starting with commercial derivatives as aircraft retire, followed later by a highly advanced aircraft.
Airlift, Military --- Galaxy (Jet transport) --- C-17 (Jet transport) --- Globemaster III (Jet transport) --- C-5 (Jet transport) --- C-5A (Jet transports) --- Lockheed C-5 (Jet transport) --- Lockheed Galaxy (Jet transport) --- Air transport, Military --- Military airlift --- Military & Naval Science --- Law, Politics & Government --- Military Administration --- Planning --- Costs --- Jet planes, Military --- Jet transports --- McDonnell Douglas aircraft --- Airplanes, Military --- Lockheed aircraft --- Aeronautics, Military --- Transportation, Military --- United States. --- Appropriations and expenditures. --- AF (Air force) --- Air Force (U.S.) --- U.S.A.F. (Air force) --- United States Air Force --- US Air Force --- USAF (Air force) --- AMC --- Planning.
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The report presents the results of two studies: The first compares the capabilities and development approaches used in the Joint Tactical Radio System wideband networking waveform (WNW) and the commercial long-term evolution waveform, and the second analyzes military acquisition programs that have repeatedly exceeded certain cost thresholds. The first study compares differences in system designs, technical requirements, intellectual property protection schemes, and cost in the development of WNW. It also examined how technical risks and challenging requirements contributed to schedule and cost increases. The second study attempts to identify unique characteristics of programs that overrun their budgets more than once.
United States --- Department of Defense --- Procurement --- Costs. --- Appropriations and expenditures. --- Armed Forces --- Weapons systems --- ABŞ --- ABSh --- Ameerika Ühendriigid --- America (Republic) --- Amerika Birlăshmish Shtatlary --- Amerika Birlăşmi Ştatları --- Amerika Birlăşmiş Ştatları --- Amerika ka Kelenyalen Jamanaw --- Amerika Qūrama Shtattary --- Amerika Qŭshma Shtatlari --- Amerika Qushma Shtattary --- Amerika (Republic) --- Amerikai Egyesült Államok --- Amerikanʹ Veĭtʹsėndi︠a︡vks Shtattnė --- Amerikări Pĕrleshu̇llĕ Shtatsem --- Amerikas Forenede Stater --- Amerikayi Miatsʻyal Nahangner --- Ameriketako Estatu Batuak --- Amirika Carékat --- AQSh --- Ar. ha-B. --- Arhab --- Artsot ha-Berit --- Artzois Ha'bris --- Bí-kok --- Ē.P.A. --- EE.UU. --- Egyesült Államok --- ĒPA --- Estados Unidos --- Estados Unidos da América do Norte --- Estados Unidos de América --- Estaos Xuníos --- Estaos Xuníos d'América --- Estatos Unitos --- Estatos Unitos d'America --- Estats Units d'Amèrica --- Ètats-Unis d'Amèrica --- États-Unis d'Amérique --- Fareyniḳṭe Shṭaṭn --- Feriene Steaten --- Feriene Steaten fan Amearika --- Forente stater --- FS --- Hēnomenai Politeiai Amerikēs --- Hēnōmenes Politeies tēs Amerikēs --- Hiwsisayin Amerikayi Miatsʻeal Tērutʻiwnkʻ --- Istadus Unidus --- Jungtinės Amerikos valstybės --- Mei guo --- Mei-kuo --- Meiguo --- Mî-koet --- Miatsʻyal Nahangner --- Miguk --- Na Stàitean Aonaichte --- NSA --- S.U.A. --- SAD --- Saharat ʻAmērikā --- SASht --- Severo-Amerikanskie Shtaty --- Severo-Amerikanskie Soedinennye Shtaty --- Si︠e︡vero-Amerikanskīe Soedinennye Shtaty --- Sjedinjene Američke Države --- Soedinennye Shtaty Ameriki --- Soedinennye Shtaty Severnoĭ Ameriki --- Soedinennye Shtaty Si︠e︡vernoĭ Ameriki --- Spojené staty americké --- SShA --- Stadoù-Unanet Amerika --- Stáit Aontaithe Mheiriceá --- Stany Zjednoczone --- Stati Uniti --- Stati Uniti d'America --- Stâts Unîts --- Stâts Unîts di Americhe --- Steatyn Unnaneysit --- Steatyn Unnaneysit America --- SUA (Stati Uniti d'America) --- Sŭedineni amerikanski shtati --- Sŭedinenite shtati --- Tetã peteĩ reko Amérikagua --- U.S. --- U.S.A. --- United States of America --- Unol Daleithiau --- Unol Daleithiau America --- Unuiĝintaj Ŝtatoj de Ameriko --- US --- USA --- Usono --- Vaeinigte Staatn --- Vaeinigte Staatn vo Amerika --- Vereinigte Staaten --- Vereinigte Staaten von Amerika --- Verenigde State van Amerika --- Verenigde Staten --- VS --- VSA --- Wááshindoon Bikéyah Ałhidadiidzooígíí --- Wilāyāt al-Muttaḥidah --- Wilāyāt al-Muttaḥidah al-Amirīkīyah --- Wilāyāt al-Muttaḥidah al-Amrīkīyah --- Yhdysvallat --- Yunaeted Stet --- Yunaeted Stet blong Amerika --- ZDA --- Združene države Amerike --- Zʹi︠e︡dnani Derz︠h︡avy Ameryky --- Zjadnośone staty Ameriki --- Zluchanyi︠a︡ Shtaty Ameryki --- Zlucheni Derz︠h︡avy --- ZSA --- Η.Π.Α. --- Ηνωμένες Πολιτείες της Αμερικής --- Америка (Republic) --- Американь Вейтьсэндявкс Штаттнэ --- Америкӑри Пӗрлешӳллӗ Штатсем --- САЩ --- Съединените щати --- Злучаныя Штаты Амерыкі --- ولايات المتحدة --- ولايات المتّحدة الأمريكيّة --- ولايات المتحدة الامريكية --- 미국 --- Spojené obce severoamerické --- États-Unis --- É.-U. --- ÉU --- Destroyers (Warships) --- F-35 (Military aircraft) --- Apache (Attack helicopter) --- United States. --- AH-64 Apache (Attack helicopter) --- McDonnell Douglas Apache (Attack helicopter) --- Antitank weapons --- Attack helicopters --- McDonnell Douglas aircraft --- F-35 (Jet fighter plane) --- Joint Strike Fighter (Military aircraft) --- Lightning II (Military aircraft) --- Lockheed Martin Lightning II (Military aircraft) --- Lockheed Martin Joint Strike Fighter (Military aircraft) --- X-35 (Jet fighter plane) --- Airplanes, Military --- Lockheed Martin aircraft --- Anti-submarine warfare --- Warships --- D.O.D. --- DOD (Department of Defense) --- Mei-kuo kuo fang pu --- Ministerstvo oborony SShA --- Министерство обороны США --- National Military Establishment (U.S.)
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