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Intratheater airlift delivers critical and time-sensitive supplies, such as blood products for transfusions or repair parts for vehicles, to deployed forces. Traditionally, military aircraft have provided this airlift. However, for various reasons, in recent years a number of commercial carriers have provided a significant amount of airlift within U.S. Central Command. But was this more cost-effective than using organic U.S. Air Force aircraft? To explore this question, the authors collected historical (2009) U.S. Central Command data and created models to identify the most cost-effective combination of commercial and organic airlift to perform the required movements. The calculations needed to address differences in fixed and marginal costs across alternatives as well as the effects of price elasticities of demand for commercial airlift providers. Model optimization runs showed a preference for U.S. Air Force-organic aircraft but suggested that commercial alternatives should be retained to supplement Air Force aircraft for a small fraction of movements. The authors further observed that U.S. Central Command planners could have benefitted from more sophisticated decision support tools to make daily intratheater cargo-aircraft allocation decisions.
Airlift, Military --- Military & Naval Science --- Law, Politics & Government --- Military Administration --- Evaluation --- Costs --- Contracting out --- Air transport, Military --- Military airlift --- Aeronautics, Military --- Transportation, Military --- United States. --- CENTCOM --- USCENTCOM
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Armored vehicles, Military --- Airborne operations (Military science) --- Military & Naval Science --- Law, Politics & Government --- Armies --- Airlift, Military --- Tactics --- United States. --- Airborne troops --- Reorganization. --- Equipment. --- U.S. Army --- US Army
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The U.S. Army perceives a gap between its current light and heavy forces: light forces deploy rapidly, but lack staying power; heavy forces have immense power, but take too long to deploy. To close this gap and also to experiment with new tactics, General Eric Shinseki, the Army Chief of Staff, has begun a transformation process that will field medium-weight brigade combat teams beginning in 2003. The Army goal is to make these brigades light enough to deploy anywhere in the world in 4 days. Initially, these brigades will supplement the light and heavy forces. Over the next 20 to 30 years,
Airlift, Military. --- Military sealift. --- Unified operations (Military science). --- Armies --- Military & Naval Science --- Law, Politics & Government --- Unified operations (Military science) --- Airlift, Military --- Military sealift --- United States. --- Reorganization. --- United States --- Armed Forces --- Foreign service. --- Naval transportation --- Sea lift, Military --- Sealift, Military --- Joint operations (Military science) --- Unified commands (Military science) --- U.S. Army --- US Army --- Transportation, Military --- Military art and science --- Strategy --- Tactics
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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 --- Air bases, American.
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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. --- Costs.
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