Product Description
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A349033. The abstract provided by the Pentagon follows: This thesis addresses Nimitz class aircraft carrier tank and void maintenance. It contributes to the solution of current maintenance problems in four ways. First, it stratifies Nimitz class aircraft carrier tanks and voids into ten groups and assigns a criticality factor to each group. These groups and criticality factors can be extended to other classes of ships. Second, it demonstrates methods to estimate the survival function of tank and void coating lifetimes based on inspection data. Actual estimates of the survival function for each group are given, but are based on current data of questionable quality. Third, it develops a decision tool to plan inspections and budget maintenance costs over multiyear periods. Preliminary application of this tool demonstrates the cost effectiveness of driving maintenance by inspection. Finally, sampling plans provided to AIRLANT for CVN 71 1997 EDSRA and CVN 73 1997 SRA are discussed. These sampling plans were developed to obtain unbiased estimates of the current proportion of failed tanks within each group. By using plans such as these, unbiased estimates of the survival function for each group can be computed. This thesis provides a framework for developing a long term inspection and maintenance program. ... Read more

Product Description
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A961393. The abstract provided by the Pentagon follows: Since the end of the Cold War, the United States Navy has been involved in many peacekeeping and disaster relief operations worldwide. Most of these Operations Other Than War (OOTW) have been unanticipated and therefore unbudgeted. The marked increase in the occurrence of these contingency operations compelled Congress to establish the Overseas Contingency Operations Transfer Fund (OCOTF) in 1997. This fund is used to reimburse the service components for their expenditures in support of contingency operations. However, due to the uncertainty involved in these contingencies, the Department of the Navy (DoN) has found it very difficult to estimate and subsequently identify costs associated with the contingency operations. This thesis develops a defendable method of assigning Aircraft Launch and Recovery Equipment (ALRE) maintenance and repair costs to contingency operations based on the number of sorties flown. The model was derived through regression analysis of catapult shots using underway days and Primary Mission Readiness (PMR) as explanatory variables. This model should aid the DoN in both predicting and identifying costs attributable to contingency operations and lend credibility to the DoN's request to the Office of Management and Budget (OMB) for reimbursement. ... Read more

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This is a AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A810314. The abstract provided by the Pentagon follows: From the early days of aviation, bombs typically have been carried by either fighter or bomber aircraft in the inventory. On the other hand, more and more long-range, precision-guided missiles are being produced with ranges that vary from tens to hundreds of miles. With such missiles, targets can be destroyed without placing personnel and equipment into close proximity to the targets. The mass delivery of standoff weapons could be especially advantageous during the early phases of an air campaign. This study considers the use of cargo aircraft for carrying and launching bombs and missiles. It discusses many aspects of a Cargo Aircraft Bombing System (CABS) and provides an overall view. The intention of the study was not to complete design details about CABS, but rather to identify preliminary design concepts that need to be considered in a CABS. The study summarizes current knowledge on CABS and reviews the Air Force's BLU-82 Commando Vault (Daisy Cutter) bomb and the Royal Air Force's Future Offensive Air System (FOAS). Background information (i.e., physical characteristics, performance, and operations) is provided on four carrying platforms, including the C-17, C-141, C-130 and C-5, and four types of precision-guided missiles, including the JSOW, JASSM, SLAM-ER, and LOCAAS. Large numbers of missiles can be carried in cargo aircraft based on operational mass restrictions. Normally, a full load would not be carried in each sortie with CABS. Based on missile and aircraft availability, and a given mission, a particular number of missiles could be carried. ... Read more

Product Description
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A751263. The abstract provided by the Pentagon follows: A decision tool for choosing most efficient unmanned aerial vehicles (UAV's)/remotely piloted aircraft (RPA) for Meteorological/ Oceanographic (METOC) data collection is presented. A Microsoft Access database query (written in Structured Query Language) links RPA flight performance parameters to individualized METOC Elements of Measurement, a subset of a larger Joint Service METOC Requirements database table, presented elsewhere in the thesis in full. Successful aircraft performance parameters include vast controllability/ programmability ranges, flexible (including shipboard) launches and recoveries, atmospheric profiling capabilities, hover ability, long endurance and airframes free of propeller or rotor wash. A sampling of existing (or planned) airborne METOC instrumentation, their ranges and accuracies are included, in database form, for further reference. ... Read more

Product Description
This is a AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A822193. The abstract provided by the Pentagon follows: The Air Force has implemented various aircraft maintenance organizational structures. The implementation of the Objective Wing in the early 1990s was the latest occurrence of reorganization. This research looks at the effect of the type of aircraft maintenance organizational structure on aircraft maintenance performance. The type of organizational structure was defined by the functional centralization of the on-equipment maintenance. Aircraft maintenance performance was measured using TNMCM rates, fix rates, repeat/recur rates, man- hours per flying hour, and scheduling effectiveness rates. Three F-15 wings and three F-16 wings were selected to compare the changes in aircraft maintenance performance and to determine if the organizational structure had a significant influence on aircraft maintenance performance. Comparison of means and regression analysis were used to investigate the main effects of organizational structure and the moderating effects of several additional factors on aircraft maintenance performance. The aircraft maintenance organizational structure was determined to have a significant positive influence on at least one aircraft maintenance performance measure for five of the six experimental group wings. Various moderating factors also had various influences on aircraft maintenance performance. ... Read more

Product Description
This is a NAVAL POSTGRADUATE SCHOOL MONTEREY CA report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A480803. The abstract provided by the Pentagon follows: This thesis explores the effects of mosaic graphite on the yield of parametric x-radiation (PXR). PXR is the Bragg scattering of virtual photons associated with the Coulombic field of relativistically charged particles interacting with the atomic planes of a crystal. PXR was measured from three samples of mosaic graphite crystals with differing mosaicities. The number of photons per electron was calibrated with the fluorescent x-ray yield from a thin silver foil backing on each of the mosaic crystals. The detector angular field of view was narrowed from previous experiments. Improvements were made in the re-analysis of previous experiments by considering the thick target effects of the x-ray absorption. Previous experiments had erroneously assumed that the calibration fluorescent targets were thin. Re-analysis of previous data using corrections for solid angle, crystal absorption factors and effective thickness resulted in yields similar to those obtained in this work. ... Read more

Product Description
This is a AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A427163. The abstract provided by the Pentagon follows: The purpose of this study was to develop a tool for Remedial Project Managers (RPMs) to learn and practice the site characterization process. One of the key difficulties encountered by RPMs during site characterization is the need to develop a model of the site based on limited data. These limited data are used to determine parameters that describe hydrogeologic and contaminant properties (aquifer hydraulic conductivity, contaminant concentration, etc.) and are obtained using sampling techniques that interrogate a very small volume, usually much smaller than node spacing of the computer model used to simulate site conditions. The value of the parameter being measured in the field and used in modeling the site is therefore a function of both the sampling location and the volume (of water, aquifer) interrogated. This research identified techniques to incorporate the impact of spatial variability and sampling method (particularly, sampling volume and method error) in a site characterization simulator. ... Read more