| Impact of Self-Reported Biases and Familiarity in a Baggage Screening Context |
22 Mar 2012 |
87 pages |
| Authors:
Scott W Halwes; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
 | A common assumption is that items that evoke strong emotions are more easily recognized than items that do not evoke strong emotions (Bessette-Symons, 2008). For example, items such as guns or knives may evoke strong emotions within some people, and it may be presumed that these items may be more easily recognized by people that have strong emotions associated with them. If this is true, then perhaps these people would ... |
|
| Aspirator Gun for High-Throughput Mosquito Bioassays |
Jan 2012 |
6 pages |
| Authors:
Robert L Aldridge; W W Wynn; Seth C Britch; Kenneth J Linthicum; AGRICULTURAL RESEARCH SERVICE GAINESVILLE FL CENTER FOR MEDICAL AGRICULTURAL AND VETERINARY ENTOMOLOGY
|
| We describe an innovative aspirator gun designed to transfer individual anesthetized mosquitoes directly into glass bioassay tubes. The gun has been used for thousands of transfers with extremely low associated mortality and is the central component of a high-throughput bioassay system. The gun is constructed using readily obtainable materials and can be modified for a range of insects. |
|
| Characterization and Discrimination of Large Caliber Gun Blast and Flash Signatures |
Oct 2011 |
254 pages |
| Authors:
Bryan J Steward; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Two hundred and one firings of three 152 mm howitzer munitions were observed to characterize firing signatures of a large caliber gun. Muzzle blast expansion was observed with high-speed (1600 Hz) optical imagery. The trajectory of the blast front was well approximated by a modified point-blast model described by constant rate of energy deposition. Visible and near-infrared (450 - 850 nm) spectra of secondary combustion were acquired at 0.75 nm ... |
|
| Verification of Use of IBHVG In Screening of High-Metal Loading Igniter Materials for Optimum Ignition of JA2 |
Sep 2011 |
28 pages |
| Authors:
Stephen L Howard; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| A smorgasbord of possible reaction pairs exists for high-metals loading igniter materials. While many of these reaction pairs initially appear to perform well when looking at a simple pressure-time history, the ignition and subsequent pressurization of the candidate propellant may not fulfill the desired metrics of improvement. The interior ballistics lumped-parameter code Interior Ballistics of High-Velocity Guns (IBHVG) has been utilized to describe simple ignition in a comparative ignition fixture. ... |
|
| Second Annual Systems Engineering Lessons Learned Conference (2nd) Held in Seaside, California on September 20-21, 2011 |
Sep 2011 |
149 pages |
| Authors:
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This report is comprised of Naval Postgraduate School students' thesis presentations in briefing charts form. |
|
| PEO Ammunition Systems Portfolio Book 2012-2013 |
02 Feb 2011 |
251 pages |
| Authors:
ARMY PEO (AMMUNITION) PICATINNY ARSENAL NJ
|
| PEO Ammunition Vision and Mission: To be a world class organization delivering the most capable and affordable ammunition, weapons and counter IED products to the Joint Warfighter as efficiently as possible. Mission: Develop a workforce focused on continuous improvement and efficiency that delivers innovative, affordable and quality solutions that provide combat overmatch to the Joint Warfighter. PEO Ammo is located at Picatinny Arsenal, NJ, the home of the Joint Center ... |
|
| A Blast Model of Traumatic Brain Injury in Swine |
Feb 2011 |
14 pages |
| Authors:
Samuel Panter; NORTHERN CALIFORNIA INST FOR RESEARCH AND EDUCATION SAN FRANCISCO
|
| The purpose of this study is to develop a survival model of blast-induced traumatic brain injury (BI-TBI) in swine. Two air guns were constructed, each having different lengths, air chamber volumes and barrel diameters. Air velocity was measured with a ballistics chronometer over a series of firings at different blast pressures. Calibration curves show linear and reproducible results through a range of firing pressures. Under anesthesia swine received BI-TBI with ... |
|
| Modeling of the 105-mm Rarefaction Wave Gun |
Aug-2009 |
36 pages |
| Authors:
Terrence P Coffee; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| The Rarefaction wAVE guN (RAVEN) is designed to reduce the recoil momentum of a gun while having a minimal effect on the projectile velocity. The recoil reduction is achieved by venting gas out the breech through an expansion nozzle. This is similar to a recoilless rifle. The difference is that the venting is delayed until the projectile is some distance down tube. The opening of the breech creates a rarefaction ... |
|
| A Low-Velocity 0.22-Caliber Gun System |
Aug-2009 |
18 pages |
| Authors:
Donald Little; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| An efficient method was needed to perform ballistic testing using the 0.22-cal. fragment-simulating projectiles (FSP) at low subsonic velocities in order to evaluate very thin lightweight composite and metallic materials at around 1 lb/ft2 areal density. This technical note outlines the custom gun system developed to enable this ballistic testing. |
|
| Progress Toward a Multidimensional Representation of the 5.56-mm Interior Ballistics |
Aug-2009 |
34 pages |
| Authors:
John R Schmidt; Michael J Nusca; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| There is significant experimental evidence that burning particles of various chemical compositions and sizes are ejected from gun primers and that these particles interact with the propellant grains during main charge ignition. This explicit ignition phenomenon is thought to be incompatible with the implicit treatment of primer function used in conventional interior ballistics codes and models. Generally, the primer efflux is treated as a hot gas that evolves from a ... |
|
| Progress Toward a Multidimensional Representation of Mortar Interior Ballistics |
Jun-2009 |
38 pages |
| Authors:
John R Schmidt; Michael J Nusca; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Lumped-parameter interior ballistics (IB) codes have had limited success in simulating the IB of mortars due to the complex nature of the firing event. Only near the end of the firing event does the mortar conform to the conventional ballistics model for which lumped-parameter codes were designed. Modified lumped-parameter models are capable of simulating some key mortar variables. There are significant pressure waves developed in mortars, which are due in ... |
|
| Mortar Interior Ballistics: Sensitivity Studies Using IBHVG2 and Progress Toward a Multidimensional Representation |
Jun-2009 |
38 pages |
| Authors:
John R Schmidt; Michael J Nusca; Albert W Horst; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Traditionally, the interior ballistic (IB) modeling of mortars has been difficult to achieve because a mortar projectile contains certain energetic components internal to the tail boom. After ignition, high pressure generated by the igniter causes the canister to burst and release hot gases and burning particles into the larger chamber called the launch tube. Subsequently, any external charges ignite and produce gases which accelerate the projectile. A recent advancement to ... |
|
| Tackling Violent Crime: Findings from Regional Workshops with 12 Crime and Disorder Reduction Partnerships |
Jan-2009 |
|
| Authors:
Emma Disley; Tom Ling; Jennifer Rubin; Matthew Wilkins; RAND EUROPE CAMBRIDGE (UNITED KINGDOM)
|
 | This report and the workshops on which it is based were commissioned by the United Kingdom's National Audit Office (NAO) to follow-up and further explore the findings of their earlier report Reducing the Risk of Violent Crime, which examined the Home Office's efforts to tackle violence. Much of the delivery of the Government's tackling violence agenda is undertaken by local Crime and Disorder Reduction Partnerships (CDRPs). These Partnerships are responsible ... |
|
| Computer Simulation of a 155-mm Projectile in a Scat Gun Assembly |
01-Sep-2008 |
34 pages |
| Authors:
Kenneth P Walsh; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ
|
| This report presents the results of a computer simulation of a 45.36 kg 155-mm projectile as it moves through a scat gun assembly using a FORTRAN program. The experimental data was taken from a test performed by the Analysis Engineering and Technical Division at the U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, New Jersey on 7 April 2007 (test CBR5). The data was filtered using an Abaqus ... |
|
| Non-Line-of-Sight Cannon (NLOS-C) System Crew Shock Loading, Evaluation of Potential Head and Neck Injury |
AUG 2007 |
74 pages |
| Authors:
Michael E. LaFiandra; Harry Zywiol; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE
|
| The Future Combat Systems (FCS) non-line of sight cannon (NLOS-C) is an artillery weapon that will use a 155-mm cannon that will be capable of automatically firing and reloading ammunition, as many as six rounds per minute. The goal of this project was to quantify the effects of weapon fire recoil on a surrogate human occupant. In 2004, the Tank-Automotive Research, Development, and Engineering Center (TARDEC) ride motion simulator (RMS) ... |
|
| Stochastic Analysis of Initial Extended Area Protection and Survivability (EAPS) Projectile |
JUN 2007 |
30 pages |
| Authors:
Michael M. Chen; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Gun propulsion modeling has been undergoing development for many decades. Because of the great strides in recent development, one has been able to estimate in-bore pressure-time history at a fairly accurate level. However, some underlying assumptions among the models exhibit certain level of uncertainties, such as the time-varying friction between the obturator and bore surface, the granular shape variations of propelling charges, the packaging deviations of each propellant load, etc. ... |
|
| The Iraqi Police Service and COMPSTAT: Applying the NYPD Crime Control Model to Restore Public Order in Iraq |
27 FEB 2007 |
63 pages |
| Authors:
Robert E. Gordon; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES
|
| The purpose of this monograph is to determine the applicability of the New York Police Department's (NYPD) COMPSTAT crime control model to restoring order in Iraq. The Iraqi Police Service (IPS) performs similar police functions to those executed by the NYPD. Although different in scope and scale, the conditions in Iraq today are comparable to those that existed in pre-1994 New York City. The cycle of violence is the prevailing ... |
|
| Enhancing Army S&T Lessons from "Project Hindsight Revisited" |
2007 |
161 pages |
| Authors:
Richard Chait; John W. Lyons; Duncan Long; Albert A. Sciarretta; NATIONAL DEFENSE UNIV WASHINGTON DC CENTER FOR TECHNOLOGY AND NATIONAL SECURITY POLICY
|
| This book draws on a series of studies known as Project Hindsight Revisited conducted by the authors at the National Defense University from 2004-2006. The Hindsight Revisited studies examined, in three reports, the development of four current U.S. Army weapons systems: the Abrams main battle tank, the Apache attack helicopter, the Stinger anti-aircraft missile, and the Javelin anti-tank missile. In exploring how these weapons systems were taken from conceptual design ... |
|
| Smallpox DNA Vaccine Delivered by Novel Skin Electroporation Device Protects Mice Against Intranasal Poxvirus Challenge |
27 NOV 2006 |
11 pages |
| Authors:
Jay W. Hooper; Joseph W. Golden; Anthony M. Ferro; Alan D. King; ARMY MEDICAL RESEARCH INST OF INFECTIOUS DISEASES FORT DETRICK MD
|
| Previously, we demonstrated that an experimental smallpox DNA vaccine comprised of four vaccinia virus genes (4pox) administered by gene gun elicited protective immunity in mice challenged with vaccinia virus, and in nonhuman primates challenged with monkeypox virus (Hooper JW, et al. Smallpox DNA vaccine protects nonhuman primates against lethal monkeypox. J Virol 2004;78:4433-43). Here, we report that this 4pox DNA vaccine can be efficiently delivered by a novel method involving ... |
|
| Conventional Arms Transfers to Developing Nations, 1998-2005 |
23 OCT 2006 |
|
| Authors:
Richard F. Grimmett; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| This report is prepared annually to provide Congress with official, unclassified, quantitative data on conventional arms transfers to developing nations by the United States and foreign countries for the preceding 8 calendar years for use in its policy oversight functions. All agreement and delivery data for the United States are government-to-government Foreign Military Sales (FMS) transactions. Some general data are provided on worldwide conventional arms transfers by all suppliers, but ... |
|
| Progress in the Development of a Multiphase Turbulent Model of the Gas/Particle Flow in a Small-Caliber Ammunition Primer |
AUG 2006 |
44 pages |
| Authors:
John R. Schmidt; Michael J. Nusca; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| There is significant experimental evidence that burning particles of various chemical compositions and sizes are ejected from gun primers and that these particles interact with the propellant grains during main charge ignition. This explicit ignition phenomenon is thought to be incompatible with the implicit treatment of primer function in conventional interior ballistics codes and models. Generally, the primer efflux is treated as a hot gas that evolves from a specified ... |
|
| Non-Linear Acoustic Concealed Weapons Detector |
MAY 2006 |
60 pages |
| Authors:
Anjani Achanta; LUNA INNOVATIONS INC BLACKSBURG VA
|
| The major findings of this effort clearly demonstrate that Non-linear Acoustics is a low cost alternative to conventional imaging methods for concealed weapons detection. Our approach is to use ultrasonics to create a localized zone where non-linear interactions generate a lower frequency acoustic wave that is steerable and is able to penetrate clothing better than direct ultrasonics. We have been able to detect guns of various sizes, box cutters, knives ... |
|
| Artillery in Korea: Massing Fires and Reinventing the Wheel |
2006 |
26 pages |
| Authors:
D. M. Giangreco; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS COMBAT STUDIES INST
|
| The first 9 months of the Korean War saw U.S. Army field artillery units destroy or abandon their own guns on nearly a dozen occasions. North Korean and Chinese forces infiltrated thinly held American lines to ambush units on the move or assault battery positions from the flanks or rear with, all too often, the same disastrous results. Trained to fight a linear war in Europe against conventional Soviet forces, ... |
|
| Weapons, 2006 |
2006 |
56 pages |
| Authors:
INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
|
| Weapons, used defensively or offensively, have provided humankind the tools to accomplish political objectives by other means since the dawn of humans. Weapons evolved from stone to club, long bow, cannon, machine gun, dumb bomb, precision guided munitions, tank, destroyer, jet fighter-bomber, intercontinental ballistic missiles, and beyond. Today, simple weapons to complex weapon systems exist and are in use throughout the world. Among sovereign nations, weapons systems develop in accordance ... |
|
| Development of Metal/Ceramic Nanocomposite Powder and Consolidation to Bulk Nanocomposite Components with Retained Nanostructures |
17 NOV 2005 |
13 pages |
| Authors:
Sudipta Seal; Petya Georgieva; Keith Rea; Venkatachalapathy Viswanathan; UNIVERSITY OF CENTRAL FLORIDA ORLANDO DEPT OF MECHANICAL MATERIALS AND AEROSPACE ENGINEERING
|
| An instrument innovation has been developed that enables for the minimization of oxidation during Air Plasma Spray (APS). Oxidation is limited due to the creation of a three-part copper shroud that utilizes a custom-fit mounting plate that is affixed to the SG-100 APS plasma gun. Due to the separation of the ambient environment from the plasma flame and the particles traveling through it, this process has been deemed Shrouded Air ... |
|
| A Brief Journey Through the History of Gun Propulsion |
NOV 2005 |
34 pages |
| Authors:
Albert W. Horst; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| While the use of guns and gun-like devices extends back in history for more than a millennium the past century has been marked by significant advances in the technology of guns the projectiles they launch and the propulsion systems employed to launch these projectiles to ever-increasing velocities. This report chronicles a sampling of theoretical and experimental advances in the science of gun propulsion and its application to a wide range ... |
|
| A Study of Projectile Response to Ballistics Environment |
NOV 2005 |
24 pages |
| Authors:
Stephen E. Ray; Michael J. Nusca; James F. Newill; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS TECHNOLOGY DIRECTORATE
|
| The U.S. Army Research Laboratory s interior ballistics code, ARL-NGEN3, is a state-of-the-art modeling tool providing interior ballistics predictions and flowfield simulations of the ignition, flamespreading, and combustion of solid-propellant charges used to launch projectiles from guns. Modern solid mechanics codes such as DYNA3D and EPIC can complement the ARL-NGEN3 code by providing a capability to predict the mechanical response of the projectile to the unsteady, high-pressure environment within the ... |
|
| The Noble-Abel Equation of State: Thermodynamic Derivations for Ballistic Modelling |
NOV 2005 |
|
| Authors:
Ian A. Johnston; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) WEAPONS SYSTEMS DIV
|
| Accurate modelling of gun interior ballistics promotes more efficient gun and propelling charge design. In order to simulate interior ballistic flowfields, such models require a description of the thermodynamic behaviour of the propellant gas. The Noble-Abel equation provides a simple and reasonably accurate equation of state for propellant gases at the high densities and temperature experienced in guns. Most computational fluid dynamics-base ballistics models, however, require additional thermodynamic functions which ... |
|
| Acquisition of the Objective Individual Combat Weapon |
07 OCT 2005 |
106 pages |
| Authors:
Mary L. Ugone; John E. Meling; Jack D. Snider; Tracey E. Dismukes; Neal J. Gause; Kelly B. Klakamp; Kevin W. Klein; Jennifer A. Kura; Lidet K. Negash; Deborah J. Thomas; OFFICE OF THE DEPUTY INSPECTOR GENERAL FOR AUDITING OF THE DEPARTMENT OF DEFENSE ARLINGTON VA
|
| DoD and military personnel involved in the management, support, and acquisition of the Objective Individual Combat Weapon (OICW) and acquisition officials responsible for managing acquisition programs should read this report because it discusses oversight issues that must be addressed before the program progresses further through the acquisition process. This report is the first in a series of reports on the overall management of the Objective Individual Combat Weapon (OICW) Increments ... |
|
| An Evaluation of Yuma Proving Grounds Ballistic Arsenal Scoring Methods |
JUN 2005 |
135 pages |
| Authors:
Jon S. Francisco Jr.; Kristopher E. Van Krueger; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Yuma Test Center (YTC) is a primary testing and evaluation facility for the United States Army's 30mm M230 automatic gun. The current program used by YTC to evaluate 30mm rounds is an old, complex, FORTRAN package called Accuracy Scoring Program (ASCORE). Due to the age and complexity of ASCORE, questions about its reliability in ballistic calculations have been raised. These reliability questions are important, because AS CORE is used by ... |
|
| Structural Loading Statistics of Live Gun Firings for the Army's Excalibur Projectile |
APR 2005 |
16 pages |
| Authors:
Jennifer Cordes; Julio Vega; Donald E. Carlucci; Raymond Chaplin; W. S. Peterson; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ PRECISION MUNITIONS AND DEMOLITION
|
| Excalibur is a 155-mm projectile under development and scheduled for Army use in 2008. During development, Excalibur was gun-fired using a variety of propellant charges. The purpose of the tests was to determine the reliability, structural integrity, and performance for different field charges. On-board accelerations and gun-tube pressures were recorded for most tests. This paper summarizes the accelerations and pressures from dozens of tests using different propellant charges. Average pressures ... |
|
| Tank Gun Barrel Reshaping - Concept to Implementation (Defense Acquisition Review Journal) |
2005 |
15 pages |
| Authors:
James Garner; Mark Bundy; Albert Pomey; Walter N. Roy; DEFENSE ACQUISITION UNIV FT BELVOIR VA
|
| The U.S. Army Research Laboratory has discovered a process that will allow tank gun barrels to be produced with tighter tolerance in their centerline contour. Improved centerline uniformity translates into improved shooting consistency from barrel to barrel. This article describes the approach taken and the lessons learned, from searching for and acquiring a program sponsor, through planning and execution of hardware development, test validation, and preparation for transition to implementation. ... |
|
| Geochemical and Physical Characteristics of Iraqi Dust and Soil Samples |
08 OCT 2004 |
63 pages |
| Authors:
Eric V. McDonald; Todd Caldwell; NEVADA UNIV RENO DESERT RESEARCH INST
|
| This study quantified physical and chemical characteristics of dust derived from soils sampled in Iraq. Recognizing that weapons jamming could be related to physical and chemical properties of dust, the Desert Research Institute (DR!) was commissioned by the Army Research Office to undertake an analysis of a limited number of Iraqi dust samples collected during the period 27 March - 8 April 2004 by an onsite geologist of the U.S. ... |
|
| Predictive Validity of the Aviation Lights Test for Testing Pilots With Color Vision Deficiencies |
SEP 2004 |
22 pages |
| Authors:
Nelda J. Milburn; Henry W. Mertens; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST
|
| The color filters of the Farnsworth Lantern (FALANT) were changed to meet the Federal Aviation Administration s signal color specifications, thereby creating a job-sample color vision test called the Aviation Lights Test (ALT) that is used for secondary screening of air traffic control specialist applicants in the terminal option. The purpose of this experiment was two-fold: to determine whether the ALT could be used in place of the FALANT for ... |
|
| Power Supply and Integration in Future Combat Vehicles |
01 JUN 2004 |
13 pages |
| Authors:
Gus Khalil; Edward Barshaw; Eugene Danielson; Michael Chait; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Future combat vehicles will require higher agility and unconventional weapons and armor systems such as Electromagnetic (EM) or Electro-Thermal Chemical (ETC) Guns, electro-Magnetic (EM) Armor and Directed energy Weapons (DEW). To meet these requirements, hybrid electric power system has been identified as the best alternative to support the demand for propulsion, continuous axillary power demand and pulsed power demand for weapons and armor. Although the development of these weapons and ... |
|
| Naval Electromagnetic (EM) Gun Technology Assessment |
FEB 2004 |
64 pages |
| Authors:
J. Bachkosky; D. Katz; R. Rumpf; W. Weldon; NAVAL RESEARCH ADVISORY COMMITTEE ARLINGTON VA
|
| The Naval Research Advisory Committee was asked in May 2003 to conduct an assessment of the current maturity of electromagnetic (EM) gun technology for the Assistant Secretary of the Navy (Research, Development & Acquisition). Specifically, the Committee was tasked to: review and assess the technical and operational performance capabilities necessary to achieve a militarily effective EM gun system for naval application; review the current and anticipated state of the technology ... |
|
| Naval Electromagnetic (EM) Gun Technology Assessment |
09 SEP 2003 |
64 pages |
| Authors:
J. Bachkosky; D. Katz; R. Rumpf; W. Weldon; NAVAL RESEARCH ADVISORY COMMITTEE ARLINGTON VA
|
| The Naval Research Advisory Committee was asked in May 2003 to conduct an assessment of the current maturity of electromagnetic (EM) gun technology for the Assistant Secretary of the Navy (Research, Development & Acquisition). Specifically, the Committee was tasked to: review and assess the technical and operational performance capabilities necessary to achieve a militarily effective EM gun system for naval application; review the current and anticipated state of the technology ... |
|
| The XM777 Joint Lightweight 155mm Howitzer program (LW155): A Case Study in Program Management Considerations Concerning the Use of National Arsenal Assets |
SEP 2003 |
107 pages |
| Authors:
Philip R. Clark; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The end of the Cold War signaled hard times ahead for both public and private manufacturers in the Nation's Defense Industry. Army-controlled manufacturing Arsenals, subject to Governmental control and requirements to maintain excess mobilization capacity, found themselves increasingly unable to compete with private industry on cost. Set-aside protectionist legislation, especially the Army Arsenal Act and the Stratton Amendments, played an increasing role in the ability of the Arsenals to obtain ... |
|
| Techniques for Analysis and Validation of Unsteady Blast Wave Propagation |
AUG 2003 |
13 pages |
| Authors:
Daniel L. Cler; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Several best practices were developed for performing blast wave propagation analysis using Fluent, a commercial computational fluid dynamics (CFD) package. The purpose of this was to be able to quickly simulate the blast field around large caliber gun systems. These best practices include the areas of determining initial grid quality and characteristics, solver selection and discretization scheme, solver stability on initial start-up, unsteady grid adaption, and solver space domain selection. ... |
|
| Environmental Assessment for the Use of White Phosphorus Rockets at Melrose Air Force Range, New Mexico |
AUG 2003 |
152 pages |
| Authors:
AIR COMBAT COMMAND LANGLEY AFB VA
|
| The EA provides an analysis of the potential environmental consequences under the Proposed Action, Alternative A, and the No Action Alternative. Resource areas evaluated in detail to identify potential environmental consequences under the Proposed Action and Alternative A include airspace management, safety, materials management, air quality, physical resources (earth and water), biological resources, cultural resources and socioeconomic/environmental justice. The EA demonstrates the WP rocket use under the Proposed Action or ... |
|
| Erosion Modeling of the High Contraction Chromium Plated Crusader Gun System |
JUN 2003 |
36 pages |
| Authors:
S. Sopok; C. Rickard; G. Pflegl; P. O'Hara; S. Dunn; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY CLOSE COMBAT ARMAMENTS CENTER
|
| Thermal-chemical- mechanical erosion modeling predictions are given for the high contraction chromium plated Crusader gun system based on extensive cannon firing, inspection, characterization, and experimental data. This effort was conducted for the Army's Crusader Program Manager Office and managed by Applied Ordnance Technology. The authors carefully protect proprietary technical data that was provided by various government and nongovernment partners involved in this effort. Key gun system details include the 155-mm ... |
|
| Critical Fracture Processes in Army Cannons: A Review |
MAR 2003 |
26 pages |
| Authors:
John H. Underwood; Edward Troiano; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Fast fracture in cannons can well be described using elastic-plastic fracture toughness, in combination with comparisons of cannon section size relative to the size required to maintain plane-strain fracture. Fatigue fracture of cannon tubes is modeled from results of full-size fatigue tests that simulate cannon firing. These tests are also the basis of fatigue-intensity- factor modeling of fatigue life, which incorporates material strength, initial crack size, and Bauschinger-modified autofrettage residual ... |
|
| Bauschinger Test Fixture |
FEB 2003 |
8 pages |
| Authors:
C. Mossey; E. Troiano; F. Pfindel; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Evaluating the Bauschinger effect on ASTM A723 gun steel necessitated the design and fabrication of a specialized fixture that remained rigid and properly aligned during testing. The configuration of the fixture can be easily modified to accommodate various specimen geometries and monitoring devices. This fixture did not allow specimen bending or buckling and was successful in obtaining accurate Bauschinger data. |
|
| Information Concerning the Arming of Commercial Pilots |
28 JUN 2002 |
14 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC
|
| Since the terrorist attacks on September 11, 2001, legislation has been enacted to enhance the nation's approach to aviation security. Specifically, the Aviation and Transportation Security Act created the Transportation Security Administration (TSA) and, among other actions, federalized passenger and baggage screening staff at airports and authorized the arming of commercial pilots, subject to the approval of the Under Secretary of Transportation for Security and other conditions. On May 21, ... |
|
| Non-Lethal Weaponry: Applications to AC-130 Gunships |
APR 2002 |
37 pages |
| Authors:
Justin L. Bobb; AIR COMMAND AND STAFF COLL MAXWELL AFB AL
|
| The theory and application of non-lethal weapons is not new and has been in use by ground combat troops and civil authorities for some time, in situations requiring the application of less than lethal force, With the increasing involvement of US military in operations other than war, the AC-130 Gunship has been the weapon of choice to provide air support This paper analyzes the viability of integrating existing non-lethal technologies ... |
|
| 2002 Assessment of the Office of Naval Research's Air and Surface Weapons Technology Program |
2002 |
|
| Authors:
NATIONAL RESEARCH COUNCIL WASHINGTON DC NAVAL STUDIES BOARD
|
| The mission of the Office of Naval Research (ONR) is to maintain a close relationship with the research and development community to support long- range research, foster discovery, nurture future generations of researchers, produce new technologies that meet known naval requirements, and provide innovations in fields relevant to the future Navy and Marine Corps Accordingly, ONR supports research activities across a broad range of scientific and engineering disciplines As one ... |
|
| Erosion Modeling of Vented Combustor Cannon Bore Materials |
NOV 2001 |
22 pages |
| Authors:
Samuel Sopok; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Vented combustor experiments are often successful at providing relative erosion results, but these results are typically inconclusive when compared to other vented combustor experiments. As a result of this deficiency, a new method for successfully modeling erosion of vented combustor cannon bore materials has been developed. This modeling method, in conjunction with limited- scale firings, provides a cost effective means of comprehensively studying erosion of coated cannon bore materials. The ... |
|
| Cannon Coating Erosion Modeling Achievements |
OCT 2001 |
26 pages |
| Authors:
S. Sopok; S. Dunn; P. O'Hara; D. Coats; G. Pflegl; C. Rickard; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Our repeatedly verified erosion theories are derived from many years of conducting the Army's mission of characterizing a broad spectrum of fired and eroded cannons. Based on these characterizations, we chronicle the establishment, development, achievement, and advancement of the first practical cannon and cannon coating/ablative erosion models for large and medium caliber gun systems. The U.S. Army Research Laboratory's subsequent confirmation and adoption of our cannon and cannon coating/ablative erosion ... |
|
| Small-Scale Experiments in Plasma-Propellant Interactions |
SEP 2001 |
28 pages |
| Authors:
Richard A. Beyer; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| A series of experiments has been performed to continue the process of characterizing the interaction between a hot plasma igniter such as is in use in electrothermal chemical (ETC) guns, and a variety of gun propellants. The primary diagnostic in the research reported here is pressure generation records for different interaction geometries. It is found that ignition times may be shorter for propellants with weaker optical absorption, such as M9 ... |
|
| Objective Individual Combat Weapon (OICW). Revolutionizing the Infantry Weapon Enhancing the Capabilities of the 21st Century Infantryman |
14 AUG 2001 |
18 pages |
| Authors:
ALLIANT TECHSYSTEMS (ATK) INC EDINA MNWEAPON SYSTEMS
|
|
Reports by Keyword(s)
GUNS
