Methods of Estimating Fixed-wing Airframe Costs. Volume I. Revised PDF Download
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Author: Luis R. Sanchez
Publisher:
ISBN:
Category :
Languages : en
Pages : 111
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Book Description
Planning Research Corporation, has conducted a series of studies to develop techniques for estimating the cost of fixed-wing aircraft. The primary objective of these studies is to develop techniques suitable for use in program planning, cost-effectiveness studies, and evaluation of contractor proposals. A further objective is to provide insight into problems of cost analysis and to suggest an analytical methodology for developing estimating relationships that will be useful to analysts in the military departments in preparing estimates of cost for new weapons system programs. (Author).
Author: Luis R. Sanchez
Publisher:
ISBN:
Category :
Languages : en
Pages : 111
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Book Description
Planning Research Corporation, has conducted a series of studies to develop techniques for estimating the cost of fixed-wing aircraft. The primary objective of these studies is to develop techniques suitable for use in program planning, cost-effectiveness studies, and evaluation of contractor proposals. A further objective is to provide insight into problems of cost analysis and to suggest an analytical methodology for developing estimating relationships that will be useful to analysts in the military departments in preparing estimates of cost for new weapons system programs. (Author).
Author: Luis R. Sanchez
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages :
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Book Description
Author: Willis Joseph Bruns (CAPT, USAF.)
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages :
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Book Description
Author: Roger M. Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
The study examines the first unit labor cost parameter of the learning curve equations belonging to seven different aircraft. The purpose of this investigation is to find a method which will produce good estimates of this parameter prior to the start of production of an aircraft. Simple linear, and log linear, multtiple variable relations were tested for accurate estimates against non-linear functions of weight and time. (Author).
Author: William Joel Ditto
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
This Cost Estimating Relationship (CER) for Fixed Wing Aircraft was developed to estimate the unit cost of a twin engine, commercial, turbo-prop aircraft procured off the shelf. The Army has a limited fixed wing capability and most of this capability is procured in a commercial environment instead of through a typical rotor wing procurement cycle. The list price in the commercial market includes both engines and standard avionics, while in a typical Government rotor wing procurement these items are Government Furnished Equipment. Therefore, this CER was developed using the parameter of empty weight and aircraft commercial list price. The data collected was analyzed using the Statistical Analysis System (SAS) on the AVSCOM Scientific and Engineering Computer System. The program developed is a linear regression of the form (y = a + bx), and the results are shown in the report.
Author: Ronald Wayne Hess
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 118
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Book Description
This report presents generalized equations for estimating the development and production costs of aircraft airframes. It provides separate cost estimating relationships (CERs) for engineering, tooling, manufacturing labor, and quality-control hours; manufacturing material, development support, and flight-test cost; and total program cost. The CERs, expressed in the form of exponential equations, were derived from a database consisting of 34 military aircraft with first flight dates ranging from 1948 to 1978. In addition to the basic objective of developing an updated set of airframe CERs, the study also examined three specific possibilities for improving CER accuracy: (1) stratifying the full estimating sample into subsamples representing major differences in aircraft type; (2) incorporating variables describing program structure and airframe construction characteristics; and (3) for the fighter aircraft only, incorporating an objective technology index into the equations.
Author: Daniel R. Truckenbrod
Publisher:
ISBN:
Category : Budget
Languages : en
Pages : 83
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Book Description
This thesis provides the background and motivation for furthering the Fully Burdened Cost of Fuel (FBCF) cost estimating methodology and calculations in the context of a naval aviation fixed wing platform. The FBCF contribution to Total Ownership Cost in the Analysis of Alternatives for Major Defense Acquisition Programs requires steady advancement to meet an October 2011 implementation deadline. Applying OSD guidance and calculator mathematical process facilitates comparison of the additional costs to deliver and protect fuel demanded by the F/A-18E/F aircraft with those added costs for a ship platform. Total costs throughout a realistic operation and support life cycle and applying a notional scenario to the newest calculator demonstrate a range of cost estimating methods. Our conclusions support previous analysis that air refueling contributes significantly to logistics support costs and that investment in fuel conservation technologies and platform endurance can be a strategic opportunity for the Department of Defense and the Department of the Navy. The aircraft FBCF is multiple times higher than the fuel commodity price as compared to the FBCF for ships, which is only fractionally higher than the fuel commodity price. Assured Delivery Price of supplied fuel calculations are complicated for platforms that require multiple refueling support assets.
Author: Rand Corporation
Publisher:
ISBN:
Category :
Languages : en
Pages : 200
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Book Description
Author: Mark V. Arena
Publisher: RAND Corporation
ISBN:
Category : Business & Economics
Languages : en
Pages : 120
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Book Description
This report explores why, in recent decades, military fixed-wing aircraft costs have escalated beyond the rates of commonly used inflation indices, examining both economy-driven factors that the Services cannot control and customer-driven ones that they can. The authors found that this trend of cost increases is true for all types of aircraft--patrol, cargo, trainer, bomber, attack, fighter, and electronic warfare.
Author: J. L. Birkler
Publisher: RAND Corporation
ISBN: 9780833002808
Category : Airplanes, Military
Languages : en
Pages : 146
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Book Description
Describes research into the cost of aircraft structural modifications. Detailed cost and man hour data supplied by the airframe industry permitted derivation of estimating tools for major aircraft components. Separate equations were derived for engineering, tooling, manufacturing, and material cost. The major explanatory variable was always weight. It was hypothesized that structural modification cost could be estimated on the basis of the weight of material added. Estimates of the cost of modification for the B-52, C-141, C-5, and EF-111 were compared with cost data from industry. Considerable informed judgment is required as is a knowledge of such program-specific facts as whether the original production tooling still exists. Rather than a mathematical model, the study describes the kinds of information needed, suggests guidelines, and presents estimating equations for airframe systems and subassemblies. These contribute to an understanding of the estimating problem but do not constitute a general solution. (Author).
