| Lessons from the North: Canada's Privatization of Military Ammunition Production |
2004 |
|
| Authors:
W. M. Hix; Bruce Held; Ellen M. Pint; RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA
|
 | The U.S. Army owns more than a dozen plants that today manufacture ammunition, ammunition components, and other ordnance materiel such as gun tubes and gun mounts. Some 70 completely private plants, at which the Army spends roughly two-thirds of its ammunition dollars, complement this government-owned base. In contrast, during the period 1965-86, Canada privatized all its government-owned munitions plants, achieving beneficial results. This report is a companion to Rethinking Governance ... |
|
| A Fire Out-of-Battery Tank Gun: Theory and Simulation |
MAY 2002 |
26 pages |
| Authors:
E. Kathe; R. Gast; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
 | As part of the Army After Next effort, TACOM-ARDEC's Benet Laboratories undertook a radical departure from current tank gun recoil to engineer a soft recoil tank gun. Such a leap in technology may be required to enable a lightweight future combat system to withstand the recoil imparted by a large fiber gun, especially during fire on the move. Although soft recoil is not new to smaller caliber guns and howitzers, ... |
|
| Bayonet Lug Camp and Mount Assembly |
31 MAY 2000 |
19 pages |
| Authors:
Vincent J. Vendetti; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A bayonet lug clamp and mount assembly is provided for use with a rifle having a T-shaped bayonet lug with slots formed in a central portion thereof. A housing is configured to slidingly engage the bayonet lug. A lever incorporating an accessory mounting rail is pivotally coupled to the housing for movement towards and away therefrom. A jaw is movably mounted in the housing and has teeth that are aligned ... |
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| Breech Plug Support Mechanism |
21 OCT 1997 |
|
| Authors:
Nicholas Bitsakis; M. Duarte; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A breech plug support mechanism for a launcher barrel having a removable breech plug comprising a handle connected to the plug by at least one leg means the handle having a pivot arm connected thereto the pivot arm including a traverse rod and arranged parallel to the barrel at least one bracket connected to the barrel and having a rotator connected to the bracket and wherein the traverse rod rotatably ... |
|
| Procurement of Gun Mounts for the MlA2 Tank |
09 JAN 1997 |
55 pages |
| Authors:
Paul J. Granetto; Garold E. Stephenson; Eugene E. Kissner; Mitchell Hailstone; Peter I. Lee; INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
|
| The primary audit objective was to determine whether the Army complied with applicable statutes and acquisition regulations for the procurement of gun mounts to support M1A2 tank production. We expanded the scope of the audit to determine whether the Army justified its August 1996 decision to authorize General Dynamics to move Government-owned plant equipment needed to produce components for the M1A2 tank from the Detroit Army Tank Plant to a ... |
|
| Vibration Measurements on the Phalanx Electro-Optical Stabilization System |
SEP 96 |
155 pages |
| Authors:
James E. Schmidt; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The installation of the new PHALANX Surface Mode (PSUM) upgrade will enable the PHALANX to handle a wider range of threats, such as a small boat approaching the ship. The objective of the research described in this thesis was to measure the vibration of a prototype forward looking infrared (FLIR) camera stabilizer system during live-fire tests to evaluate its performance. Uniaxial, triaxial, and angular accelerometers were mounted at 19 different ... |
|
| Correlation of Experimental and Finite Element Modal Analysis of the Phalanx M61A1 Close-in Weapon System |
DEC 95 |
134 pages |
| Authors:
Carlos S. Guzman; John C. Gaffe; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The M6 1 Al gatling gun is the principal component of the PHALANX close-In Weapons System (CIWS), which provides U.S. Navy surface ships with a final defense against anti-ship cruise missiles. The objectives of this study are to provide an experimental set of modal parameters and to validate a new finite-element model (FEM) of the gun. Swept sine frequency response measurements on an actual PHALANX gun were conducted in the ... |
|
| The Effect of Initial and Gun Mount Conditions on the Accuracy of Kinetic Energy (KE) Projectiles |
NOV 95 |
42 pages |
| Authors:
Stephen Wilkerson; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| The U.S. Army Research Laboratory (ARL) has invested considerable resources in the development of numerical techniques for the prediction of kinetic energy (KE) projectile accuracy. In particular, a validated three- dimensional transient finite element (FE) model of the M256 12O-mm MIAI main weapon system's performance has been created from the trunnions up. This model considers for the first time the gun tube, breech, piston, cradle and mount assembly, along with ... |
|
| Fracture Mechanics Tests and Defect Criteria for the 120-mm M121 Mortar Baseplate |
OCT 95 |
14 pages |
| Authors:
J. H. Underwood; E. Troiano; D. Crayon; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Calculations of firing stress at several locations of the 120-mm M121 mortar baseplate were made based on available strain gage data. Measurements of fracture toughness were performed for seven weld and heat-treat conditions of the 4130 steel used for the baseplate. Calculations were made of the ratio of applied K to the critical K for fracture for various combinations of firing stress and material condition. Based on the results of ... |
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| Prediction of Shot Impact Using Dynamic Analysis and Firing Results for the M1A1 Tank |
MAR 95 |
100 pages |
| Authors:
Ronald G. Gast; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| Conventional tank battles are an important aspect of current and future warfare techniques. Even though our mechanized weaponry is extremely accurate, we should not embrace the mindset that the beg in tank gun accuracy has been achieved. We can should embrace the mindset that the best in tank gun accuracy has been achieved. We can and should do more! The fleet zero concept brought about by the downsizing trend in ... |
|
| A Stress Factor Method for Perforated Muzzle Brake Design |
FEB 94 |
22 pages |
| Authors:
Garry C. Carofano; Martin R. Leach; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
|
| A perforated muzzle brake consists of a set of vents drilled through the wall of a cannon near the muzzle to reduce the impulse transmitted to the mount. The vented structure must support both the tube pressure and the pressure acting on the vent surfaces that produces the braking force. This report presents a method for estimating the maximum Von Mises stress within the structure. The results agree to within ... |
|
| Cognitive Psychology and Design Paradigms in the Development of Multimedia Courseware |
SEP 93 |
101 pages |
| Authors:
Dorothy L. Filbert; Jameel B. Weatherspoon; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Multimedia courseware has the promise of becoming a staple of instructional technology, but it must be built around sound design theories in order to be effective. The design of multimedia courseware should be based on instructional design theory, human factors, and cognitive learning theories. If these elements are not included in a deliberate manner, the multimedia courseware will not be an effective instructional tool. This thesis explores relevant cognitive learning ... |
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| Side-Mounted Rolling Airframe Missile Launcher. |
14 JUL 1992 |
|
| Authors:
R. N. Cain; Gary L. Carle; Walter H. Klaus; COURTNEY AND CO PHILADELPHIA PA
|
| An integrated sidemounting of a rolling airframe missile launcher with a 5'/54 MK-45 gun mount is provided. The integrated gun-missile system permits simultaneous tracking of the missile system and gun system and, through software systems, allows the ship's defensive system to automatically sequence through weapons as required. Chaff, decoys and flares may also be launched using the side-mounted missile launcher. |
|
| Hardware and Software Description of a Prototype Controller for the Two- Degree of Freedom 'BRL Mount |
JUL 92 |
|
| Authors:
Mark D. Kregel; ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| As part of the LABCOM TEAM COOP Program the U.S. Army Ballistic Research Laboratory recently Constructed a two-degree of freedom mount suitable for slewing loads up to 800 lbs. The mount was driven in both azimuth and In elevation by large stepper motors. In order to ted and evaluate the mount, a preliminary controller was constructed that would allow b operation through keyboard entry of a remote computer. This report ... |
|
| Manufacturing Guide for Elastomeric Seals |
27 DEC 89 |
|
| Authors:
Frank B. Testroet; ROCK ISLAND ARSENAL IL SCIENCE AND ENGINEERING DIRECTORATE
|
| Elastomeric seals used in gun mounts have a hard to achieve combination of properties, so acceptable seals are difficult to procure and few sources are available. Therefore, two rubber formulations were developed, each for a different hydraulic oil, with the intention of providing the manufacturing data to U.S. Government activities and potential vendors. As in-house Army fabrication capability is needed for the seal kit for the M140 gun mount, polytetrafluoroethylene ... |
|
| Military Standard Environmental Test Methods and Engineering Guidelines |
14 JUL 89 |
|
| Authors:
AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OH FUEL AND HAZARDS BRANCH
|
|
| Main Battle-Tank Fire Control Systems - Gun/Sight Synchronization |
31 MAR 87 |
|
| Authors:
ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD
|
| This document describes tests for measuring and evaluating the capability of vehicle-mounted main-gun sighting systems, particularly those systems located apart from the gun mount, to maintain the prescribed azimuth and elevation relationship with the gun-bore axis for all positions of gun elevation and depression. Keywords: Gun sights; Calibration; Backlash; Cant angles; Collimator; Crane/slope method; Grid board; Gun/sight synchronization; Main gun. |
|
| Application of Nonconventional Materials to Guns and Gun Tubes |
DEC 86 |
|
| Authors:
NATIONAL MATERIALS ADVISORY BOARD (NAS-NAE) WASHINGTON DC
|
| The interaction between gun design and advanced materials as they might be applied to improve guns were reviewed. The gun barrel environment is discussed in terms of possible applicability of ceramics and composites for the gun barrel. Prospects for lightening gun mounts, such as by the use of composites, are also considered. Among the conclusions reached are that new materials will be needed to cope with the extreme and abusive ... |
|
| Department of the Navy Justification of Estimates for Fiscal Year 1987 Submitted to Congress February 1986. Procurement, Weapons Procurement, Navy |
FEB 86 |
|
| Authors:
OFFICE OF THE COMPTROLLER (NAVY) WASHINGTON DC
|
| This volume contains justification material suportng the President's fiscal year 1987 budget presentation to Congress. The Weapons Procurement, Navy appropriation finances the procurement of ballistic, strategic and tactical missiles, torpedoes, mines, guns and support equipment for Naval, Coast Guard and Marine Aviation forces. Support equipment includes: equipment for modification of in-service missiles, torpedoes, mines, guns, and gun mounts; aerial and underwater targets used in training exercises and evaluation; hardware for ... |
|
| Airworthiness and Flight Characteristics Test of the OH-6A Configured to a Light Combat Helicopter (JOH-6A LCH) |
NOV 83 |
|
| Authors:
James L. Webre; Ralph Woratschek; Eric L. Mitchell; Richard S. Adler; ARMY AVIATION ENGINEERING FLIGHT ACTIVITY EDWARDS AFB CA
|
| Limited airworthiness and flight characteristics test of the JOH-6A Light Combat Helicopter (LCH) were conducted. The JOH-6A LCH configuration increased mission gross weight to 2700 pounds and includes one 7-tube 2.75 inch rocket pod and one 7.62 mm minigun mounted externally. Performance and handling qualities were evaluated at test sites from near sea level (488 feet) to 9980 feet. A total of 44 flights were conducted requiring 34.6 productive flight ... |
|
| Overhead Protection for Military Vehicles. |
24 JAN 1983 |
|
| Authors:
Jaunutis B. Gilvydis; DEPARTMENT OF THE ARMY WASHINGTON DC
|
| Add-on armor protection for a military tank having an externally mounted main gun. Horizontal armor plates are attached to existing upstanding gun cradle wall structure to provide enhanced protection for the driver and commander; an additional armor plate can be mounted at the rear ends of the gun cradle wall structure to protect ammunition stored in rear areas of the hull. The add-on armor components are particularly designed to protect ... |
|
| Dynamic Analysis of the 75MM ADMAG Gun System |
DEC 1982 |
346 pages |
| Authors:
Martin T. Soifer; Robert S. Becker; S AND D DYNAMICS INC HUNTINGTON NY
|
| A detailed description of the finite element (lumped parameter) analytical simulation model of the 75mm ADMAG gun system, developed for the purpose of simulating the dynamic response of the physical system to single shot and burst mode firings, is herein presented. Model output consisting of natural frequencies, normal mode shapes and system response to a firing (including time- dependent trunnion and elevation link loads, and muzzle linear and angular displacements, ... |
|
| Weapons Training Apparatus for Simulating Long Range Weapons. |
02 MAR 1982 |
|
| Authors:
Albert H. Marshall; Gary M. Bond; Bon F. Shaw; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A weapons training apparatus is disclosed for simulating long range weapons so as to train a marksman in the use of the particular weapon being simulated. The weapons training apparatus comprises a laser transmitter mounted within the weapon being simulated which, when activated by the marksman, broadcast at a target a square wave beam of laser light having a predetermined frequency. A receiver, mounted upon the target, will sense only ... |
|
| Simulation Testing of Weapon Systems |
OCT 1981 |
|
| Authors:
Robert J. Radkiewicz; ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND DOVER NJ TECHNICAL SUPPORT DIRECTORATE
|
| The testing of Army weapon systems can be significantly improved through initial use of physical simulation testing. This report discusses two simulators that are available for testing weapons and weapon systems under conditions encountered during their life cycle. The one-degree-of-freedom (1- DOF) simulator provides a variable mounting platform from which weapons can be test fired to assess the effect of the mounting conditions on operability. Sections of vehicles to which ... |
|
| Planning Support for Maintenance and Overhaul of Gun Weapon Systems |
MAY 1981 |
|
| Authors:
N. Lakis; M. Hallahan; ARINC RESEARCH CORP ANNAPOLIS MD
|
| In support of the study objectives, the following actions were taken: (1) A study was conducted to determine requirements for waterfront facilities concerning GWSRP-related equipment lifting gear. Requirements were determined on the basis of current and future configurations for fleet gun weapon systems. This study also provided guidance in the form of support procedures to be followed concerning acquisition, maintenance, and control of the lifting gear. (2) Assistance was provided ... |
|
| Technical and Management Support for the Gun Weapon System Replacement Program, |
AUG 1980 |
|
| Authors:
Nick Lakis; ARINC RESEARCH CORP ANNAPOLIS MD
|
| During a 12 month period commencing on 14 August 1979, specific program areas of management responsibility were analyzed by ARINC Research Corporation to provide engineering and management support to NOSIH. This study presents the results of investigations into program areas that showed a high potential for (1) improvement to existing procedures and (2) coordination with the Destroyer Engineered Operating Cycle (DDEOC) Program and emergent Engineered Operating Cycle (EOC) programs. Specific ... |
|
| Rigid Mount for an Internally Pressurized Tube. |
18 SEP 1979 |
|
| Authors:
Harvey L. Peritt; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| An internally pressurizable expansible body is supported by an improved rigid mount which minimizes stresses induced in the body due to constraining radial expansion of the body. The mount comprises a plurality of resilient members juxtaposed betwee the body and a fixed annulus which is capable of carrying axial, transverse and torsional loads imposed upon the body. (Author) |
|
| Destroyer Engineered Operating Cycle (DDEOC). System Maintenance Analysis, CG-16 and CG-26 Class Armament Systems, SWAB Group 700, SMA 1626-700. Review of Experience, |
AUG 1979 |
|
| Authors:
M. T. Brown; ARINC RESEARCH CORP ANNAPOLIS MD
|
| This report, the review of experience, documents the historical maintenance experience, for both CG-16 and CG-26 Class armament systems, SWAB Group 700. It presents an analysis of the existing maintenance policy and recommends specific maintenance actions and maintenance policy modifications to improve system material condition. |
|
| A System Identification Methodology Using Dynamic Data for Analysis of Mechanisms. |
AUG 1979 |
|
| Authors:
S. M. Wu; WISCONSIN UNIV-MADISON DEPT OF MECHANICAL ENGINEERING
|
| Signals representing the force and displacement of the table of the M-139 machine gun during firing were analyzed. A constrained ARMA (2,1) model was fitted to the displacement data to explain the reason why the gun was jammed. Force data during and after firing were represented by the 4th and 6th order stochastic differential equation models. These models after decomposing yielded the dynamics of three subsystems; a supporting table, a ... |
|
| Reliability, Maintainability, Strategic Reliability, and Life Cycle Cost Comparison Analysis of Three Alternative Mk 71 Mod 0 Gun Mount Control System Designs. |
JUL 1978 |
|
| Authors:
P. Klimowitch; ARINC RESEARCH CORP ANNAPOLIS MD
|
| This report summarizes the work conducted by ARINC Research Corporation under Contract N00197-76-C-0141, Tasks 3 and 4, for the Gun System Engineering Center/Naval Ordnance Station, Louisville, Kentucky. These contract tasks required comparisons of reliability, maintainability, strategic reliability, and life cycle costs of three alternate control systems for the 8in./55 Caliber Mk 71 Mod 0 Major Caliber Light Weight Gun (MCLWG) and a review of a preliminary development specification for a ... |
|
| Investigation of the Cause of Hydraulic System Malfunction of M60A1 (AOS) Tanks using MIL-H-46170 Synthetic-Base Hydraulic Fluid. |
JUL 1978 |
|
| Authors:
M. E. Lepera; J. Messina; H. Mullinger; C. E. Snyder; ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT COMMAND FORT BELVOIR VA
|
| This report covers the investigation by the Chemical Subgroup of the Fire-Resistant Hydraulic Fluid Task Force. The Task Force was organized in 1975-76 to address the problems arising from the introduction of the new 'less-flammable' MIL-H-46170, 'Hydraulic Fluid, Rust-Inhibited, Synthetic Hydrocarbon Base, Fire-Resistant.' The problems were associated with stuck/inoperative servo-values in the gun control systems of the M60A1 (AOS) tanks. The problems were subsequently identified with one company's product which ... |
|
| Alinement Aid. |
24 JAN 1978 |
|
| Authors:
Tom E. Moore; DEPARTMENT OF THE NAVY WASHINGTON D C
|
| This document describes a method and apparatus for aiding the alinement of an element, carried on supporting surface, requiring parallelism to a reference plane or axial orthogonality to that reference plane. A first and second ring are disposed between the element and surface and the second ring, having an interfacing plane, is manipulated such that the interfacing plane is parallel to the reference plane. Suitable attachment is made to assure ... |
|
| Safety Analysis of the Electronic Control Circuitry in the MK 71 Mod 0 Gun Mount. Volume II. Control Circuitry Drawings, |
JUL 1977 |
|
| Authors:
P. Klimowitch; ARINC RESEARCH CORP ANNAPOLIS MD
|
| This document presents a series of circuit diagrams related to document AD-A050 435. |
|
| Safety Analysis of the Electronic Control Circuitry in the MK 71 Mod 0 Gun Mount. Volume I, |
APR 1977 |
|
| Authors:
P. Klimowitch; ARINC RESEARCH CORP ANNAPOLIS MD
|
| A safety analysis on the electronic logic control circuitry was performed on the 8-in./55 Caliber Mk 71 Mod 0 Gun Mount. This report describes the work performed, presents analysis results, lists analysis conclusions, and documents recommendations for improving control circuit safety in the Mk 71 Mod 0 Gun Mount. |
|
| Fluidic Gun Stabilization System Development Program |
31 MAR 1977 |
65 pages |
| Authors:
Thomas B. Tippetts; Wallis T. Fleming; AIRESEARCH MFG CO OF ARIZONA PHOENIX
|
| This report describes the results of a design and development program conducted by AiResearch Manufacturing Company which was intended to demonstrate the feasibility of a fluidic gun stabilization system for the elevation axis. The system utilizes an angular accelerometer with pneumatic pickoff, a pneumatic/fluidic dynamic compensation and amplification circuit, and a pneumatic/hydraulic pressure control servovalve driving the hydraulic gun actuator. The servovalve, handle valve, actuator, turret test fixture, and vehicle ... |
|
| Evaluation of the Reliability Impact of Engineering Change Proposals, |
SEP 1976 |
|
| Authors:
G. Mettler; ARINC RESEARCH CORP ANNAPOLIS MD
|
| This report presents the results of ARINC Research Corporation's efforts to evaluate the reliability and availability impact of ECP 780-026 on the 5 in./54 Mod 0 Gun Mount, using a computer simulation modeling technique. (Author) |
|
| Feasibility Study for an Electrochemical Grinding (ECG) Machine for Large Diameter Workpieces. |
NOV 1975 |
|
| Authors:
Walter B. Brumleve; NAVAL ORDNANCE STATION LOUISVILLE KY
|
| The objective was to conduct a feasibility study for an Electrochemical grinding machine that would include Electrochemical Grinding (ECG), Creep Feed and Conventional Abrasive Grinding. The machine would be a rotary type grinder with capacity to grind 14-foot diameter workpieces, particularly roller bearing paths for gun mount stands. The conventional grinders, production processes and methods currently used at NOSL for roller paths were reviewed in detail. An in-depth analysis was ... |
|
| An Historical Listing Covering Schematic Developments in Artillery. |
OCT 1974 |
|
| Authors:
Lester L. Miller Jr; ARMY FIELD ARTILLERY SCHOOL FORT SILL OKLA
|
| This inclusion in the special bibliography series is intended to reflect holdings of the Morris Swett Technical Library which cover the development of artillery through schematics as a visual means of illustration up to the period of World War One. This emphasis on scale drawings cuts a wide swathe across doctrinaire lines so as to view artillery as a single combat arm. Field guns, siege cannon, howitzers, mortars, fixed coastal ... |
|
| Artillery. |
SEP 1974 |
|
| Authors:
DEFENSE DOCUMENTATION CENTER ALEXANDRIA VA
|
| The annotated bibliography contains unclassified and unlimited citations on artillery technology. Four computer generated indexes are included. |
|
| Engineering Assessment of Coastal Patrol and Interdiction Craft (CPIC) Weapon System. |
SEP 1974 |
|
| Authors:
J. D. Broglio; G. P. Mettler; A. N. Winter; W. J. Wysocki; ARINC RESEARCH CORP ANNAPOLIS MD
|
| ARINC Research Corporation conducted an engineering assessment of the EX 30 Mod 0 30mm Weapon System aboard the Coastal Patrol and Interdiction Craft (CPIC). The system was examined, both by subsystem and as a complete entity, from a reliability and maintainability perspective. Potential reliability and maintainability problems were identified; and recommendations were developed for design changes that might improve the reliability, maintainability, and performance of the production systems. (Author) |
|
| Study into the Operational Characteristics of a Recoilless Rifle Mounted on Army Helicopters. Volume I. Experimental Investigation into the Effect of Suppressing Recoilless Rifle Back Blast Utilizing a Porous Diffuser and Deflections. |
JUL 1974 |
|
| Authors:
Sheldon D. Smith; LOCKHEED MISSILES AND SPACE CO INC HUNTSVILLE ALA HUNTSVILLE RESEARCH AND ENGINEERING CENTER
|
| The study was concerned with developing a method or device to reduce blast overpressure of a 105 mm recoiless rifle to permit its mounting on the outboard bomb shackle of a Cobra helicopter. Two devices were mounted at the nozzle breech of the rifle test weapon. The primary device built was a cylindrical porous wall shroud for which the porosity could be varied. The second device consisted of a pair ... |
|
| Evaluation of Back-Blast Pressures Produced by a Wing-Mounted 105-MM Recoilless Rifle. |
JUL 1974 |
|
| Authors:
William N. Lee; Robert Similey ; J. Ray Reutenik; Norman P. Hobbs; KAMAN AVIDYNE BURLINGTON MASS
|
| Results are presented from an analytical study to develop means of reducing the back-blast pressures produced on the tail boom of an AH-1G helicopter by the firing of a 105-mm wing-mounted recoilless rifle. Computer codes were developed for predicting the back-blast fields and are partially substantiated by comparisons of calculated pressures with results from recent Picatinny firing tests. The desirability of reducing back-blast pressures through use of a multiple nozzle ... |
|
| Investigation of Back-Blast Attenuators for Recoilless Rifles. |
JUN 1974 |
|
| Authors:
A. T. Sutor; ROCKWELL INTERNATIONAL CORP CANOGA PARK CALIF ROCKETDYNE DIV
|
| Based on a series of water table tests, various configurations of recoilless rifle back blast suppressor models were designed and fabricated for shock tube experiments. Various lengths of suppressor were tested with enclosed cavities for damping the blast wave. Because the blast wave suppression was less then desired, a new series of mufflers, using commercial washers, was tested. Attenuations of 62 to 74 per cent were measured in the regions ... |
|
| Kinematic Study of the 7.62mm Soviet Machine Gun, Shkas. |
MAY 1974 |
|
| Authors:
Timothy L. Brosseau; ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| A kinematic study was performed on the 7.62mm Soviet Machine Gun, known as the 'Shkas', to determine if the weapon is capable of firing at 2000 rds/min (33.33 rds/s). Forces at the trunnions, displacements of the weapon components rates of fire, and velocity at the muzzle were measured. Results showed that the weapon is capable of firing at 2000 rds/min (33.33 rds/s); however, the horizontal trunnion forces are excessive at ... |
|
| Dynamic Analysis and Optimal Design Formulation of a Weapon-Vehicle System, |
APR 1974 |
|
| Authors:
B. M. Kwak; K. Rim; J. S. Arora; IOWA UNIV IOWA CITY DEPT OF MECHANICS AND HYDRAULICS
|
| A dynamic model of an automatic weapon-vehicle system is analyzed and formulated as an optimal design problem. The design concept adopted is to find the design parameters such that the gun barrel has a desirable property of least possible disturbance from a perturbation due to continuous bursts under uncertainty of environments such as road conditions and the azimuth angle. Thus, the optimal design problem becomes a 'parametric optimal design' problem ... |
|
| Weapon-Vehicle Modeling and Solution, |
20 JAN 1974 |
|
| Authors:
P. F. Sun; S. J. Chen; D. T. Davy; W. F. Ames; IOWA UNIV IOWA CITY DEPT OF MECHANICS AND HYDRAULICS
|
| A mathematical model is constructed for a personel vehicle carrying a light weapon. The equations of motion are generated and solved during simultaneous vehicle motion and firing. (Author) |
|
| Vibration Absorbers for Rocket Launchers Mounted on Helicopters: Analytical Analysis and Implementation Techniques. |
02 JAN 1974 |
|
| Authors:
C. D. Johnson; ARMY MISSILE COMMAND REDSTONE ARSENAL ALA GROUND EQUIPMENT AND MATERIALS DIRECTORATE
|
| An analytical analysis of the dynamical behavior of the tuned-mass vibration absorber is presented, and the notion of optimum damping is introduced. Computational techniques for calculating optimum damping coefficients are developed and three representative numerical examples are solved. A nonlinear servo-control system is designed to achieve inflight automatic tuning of the tuned-mass absorber in the face of varying helicopter rotor speeds. The practical aspects of implementing active vibration absorbers are ... |
|
| Miss Distance Resulting from Input Errors for Gun Air Defense Systems. |
JUN 1973 |
|
| Authors:
Thomas H. Slook; Samuel Yosen; Alice M. Jones; FRANKFORD ARSENAL PHILADELPHIA PA
|
| The report gives, for the antiaircraft problem of level flight, constant speed and any ballistic data, the mathematical analysis, and a FORTRAN program of projectile-target miss distance as a function of errors in slant range, slant range rate, azimuth, azimuth rate, elevation, elevation rate, and gun-platform out-of-level. The FORTRAN program prints a miss distance table as a function of the above errors for equal increments in predicted slant range, present ... |
|
| Machine Gun. |
02 FEB 1973 |
|
| Authors:
ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD
|
| The report describes a method for evaluation of machine gun operational and performance characteristics. It identifies supporting tests, facilities, and equipment required. It provides procedures for preoperational inspection, physical characteristics, safety, personnel training, sights, mounts, accuracy, dispersion, tactical employment, man-portability, transportability, airdrop operations, durability, reliability, maintainability, and human factors evaluation. The report is applicable to ground-to-ground employment only. (Author) |
|
| Further Study of Techniques for Reducing the Vibration of Rocket Launchers Mounted on Helicopters. |
JAN 1973 |
|
| Authors:
C. D. Johnson; ARMY MISSILE COMMAND REDSTONE ARSENAL ALA GROUND EQUIPMENT AND MATERIALS DIRECTORATE
|
| The report is concerned with the problem of reducing the steady state vibrations of rocket launchers mounted on helicopters. The report presents a study of the problem with emphasis on developing a small scale demonstration test model, and extending the active vibration absorber theory. (Author Modified Abstract) |
|
Reports by Keyword(s)
GUN MOUNTS
