| Design and Testing of a Diver Thermal Protection Garment |
MAY 2008 |
15 pages |
| Authors:
David R. Pendergast; Joseph M. Mollendorf; STATE UNIV OF NEW YORK AT BUFFALO CENTER FOR RESEARCH AND EDUCATION IN SPECIAL ENVIRONMENTS
|
 | Missions in cold and hot water have to be planned to insure thermal protection to prevent loss of diver capability. The objective of this project was to design, develop and test a diver thermal protection system (DTPS) that would eliminate the thermal constraint, and protect free swimming divers in waters from 5C to 40C at rest and during exercise at depths to 350 fsw. The DTPS developed met the objectives, ... |
|
| Manned Evaluation of a Diver Heater for SDV Applications Using Hydrogen Catalytic Reactions |
JUN 2005 |
61 pages |
| Authors:
M. L. Nuckols; J. C. Chao; M. J. Swiergoaz; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Naval Sea Systems Command (NAVSEA) 000 tasked Navy Experimental Diving Unit (NEDU) to assess the effectiveness of an experimental diver heater being developed in partnership by Duke University and NSWC Panama City under sponsorship of the Office of Naval Research.1 This proof of concept study was designed to investigate whether a prototype hydrogen catalytic heater, when used in conjunction with a recently developed integrated closed-circuit tube suit-dry suit thermal protection ... |
|
| Evaluation of Zeagle "MK 16 BCD Assembly" Buoyancy Compensator With MK 1 Dry Suite Bottle |
JUL 2001 |
11 pages |
| Authors:
R. L. Russell; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| NEDU was tasked to conduct a survey of commercially available buoyancy compensators (BCs) and perform testing to determine whether the BCs perform satisfactorily. Buoyancy compensator evaluation was conducted in four phases. Phase I included receipt inspection of the buoyancy compensator and technical review of the manufacturer-supplied documentation (instructions/repair manuals) Phase II was Test Pool Evaluation (surface floating attitudes if the BCs were used as life jackets). No failure-mode analysis was ... |
|
| Using "Technical Diving" Techniques for Short Dives in the 80-100 MSW Range |
JUN 2001 |
10 pages |
| Authors:
R. W. Hamilton; Joel D. Silverstein; HAMILTON RESEARCH LTD TARRYTOWN NY
|
| Advanced recreational divers over the last 10 years have developed new techniques for open circuit scuba diving in the range to about 100 meters of sea water (msw). These techniques have potential application in military diving. This report describes the new practices, the equipment, procedures, and training required, and some results of several significant operations. |
|
| MAKO Model KA7 BA-D Diesel Driven Portable Divers Air Compressor (Unmanned) |
DEC 1997 |
22 pages |
| Authors:
George D. Sullivan; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Navy Experimental Diving Unit (NEDU) evaluated a Mako KA7 BA-D portable air compressor. The test took place at NEDU from 8 July through 17 July 1997. The purpose was to: Determine if the compressor system provides compressed air at the manufacturer's advertised pressures, flow rates and the quality and cleanliness required by the U.S. Navy. With the information gathered from the evaluation NEDU made a recommendation to ... |
|
| Underwater Propulsion Device |
18 NOV 1997 |
|
| Authors:
Alfred A. Gates; DEPARTMENT OF THE NAVY WASHINGTON DC
|
 | Disclosed is a water jet propulsion device for divers and diver equipment. A forward pressurized air chamber and a rearward water containing chamber are positioned inside a cylindrical housing and are separated by a flexible membrane which is adjacent to a conical deformation plate. On opening a valve located in communication with the water containing housing, pressurized air in the air chamber forces water from the water chamber through a ... |
|
| Human Factors in Diving |
DEC 96 |
84 pages |
| Authors:
Michael A. Blumenberg; CALIFORNIA UNIV BERKELEY
|
| Dive safety is primarily a function of four factors: the environment, equipment, individual diver performance and dive team performance. The water is a harsh and alien environment which can impose severe physical and psychological stress on a diver. The remaining factors must be controlled and coordinated so the diver can overcome the stresses imposed by the underwater environment and work safely. Diving equipment is crucial because it provides life support ... |
|
| Calculating Decompression in Naval Special Warfare SEAL Delivery VehicleDiving Operations Utilizing the Real Time Dive Planner |
NOV 1996 |
88 pages |
| Authors:
D. J. Valaik; E. C. Parker; S. S. Survanshi; NAVAL MEDICAL RESEARCH INST BETHESDA MD
|
| Currently, SEAL Delivery Vehicle (SDV) dry deck sheller (DDS) diving supervisors, in concert with their diving medical officer, have three options in calculating decompression: (1) Volumes 1 and 2 of the U.S. Navy Diving Manual, (2) CSMD procedures, and (3) the Dive Planner. For a given dive, these different methods of calculating the decompression obligation could give three very different answers. Understanding which decompression schedule is the ... |
|
| Evaluation of Diving System International (DSI) KMB-28B Bandmask |
JUN 96 |
22 pages |
| Authors:
D. L. Junker; R. W. Mazzone; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Navy Experimental Diving Unit (NEDU) evaluated the DSI EMd-28N bandmask as requested by COMNAVSEASYSCOM Code OOC. Unmanned testing was conducted to 198 few at a temperature of 4O deg F at RMV's of 22.5 to 90 Lxmin. Manned testing was conducted in the NEDU test pool to evaluate form, fit and function. Additionally, manned dives were conducted to a depth of 190 fsw in the 0SF by divers wearing hot ... |
|
| Evaluation of RIX 4VX AIR/NITROX Compressor |
DEC 95 |
43 pages |
| Authors:
George D. Sullivan; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| In response to reference (1), Navy Experimental Diving Unit (NEDU) tested the Rix 4VX Air/Nitrox Compressor from 25 Oct 95 to 27 Nov 95. The purpose of this test was to determine if the equipment was suitable for the ANU List. The RIX 4VX Air/Nitrox Compressor delivers acceptable breathing air at a capacity which meets the manufacturer's specification. It is recommended for inclusion on the ANU List. (MM) |
|
| Seawater Hydraulic Rock Drill Impact Mechanism Model Validation |
JAN 95 |
44 pages |
| Authors:
John P. Kunsemiller; Bruce W. Farber; NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA
|
| The Naval Facilities Engineering Service Center (NFESC) has developed and evaluated a computer model of the single poppet-kicker port linear impact mechanism used in the seawater hydraulic rock drill. The project objective was to identify hydraulic and dynamic elements influencing impact mechanism operation. A goal of this investigation was to determine whether or not computer modeling of the impact mechanism for the seawater hydraulic rock drill would lead to an ... |
|
| U.S. Navy Unmanned Test Methods and Performance Goals for Underwater Breathing Apparatus |
JUN 94 |
139 pages |
| Authors:
NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The Navy Experimental Diving Unit (NEDU) is the United States Navy's facility for the test and evaluation of underwater breathing apparatus (UBA). Every military and commercial UBA considered for use by the U.S. Navy is sent to NEDU for an in-depth evaluation. The evaluation encompasses UBA performance, material suitability, human factors and system reliability. This technical manual is an update of NEDU Report1 3-81. It presents the updated unmanned performance ... |
|
| Test and Evaluation of the Integrated Divers Vest (Unmanned) |
JUN 94 |
24 pages |
| Authors:
Trevor Rush; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The Divers Vest, NSN 1H 4220-01-045-2194 was selected by the Navy Ships Parts Control Center, Quality Assurance Division for random testing. Twelve vests, manufactured by Morse Diving Equipment Company, Inc., were submitted to the Navy Experimental Diving Unit for evaluation. Evaluation of the vests was based on the manufacturer's compliance with the requirements of MIL-V- 24690(SH), MILITARY SPECIFICATION VEST INTEGRATED DIVERS. All twelve vests underwent nondestructive testing. Two vests were ... |
|
| Evaluation of MAKO 5436 High Pressure Breathing Air Compressor |
APR 94 |
21 pages |
| Authors:
George D. Sullivan; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| In response to NAVSEA tasking, Navy Experimental Diving Unit (MEDU) evaluated the MAKO 5436 High Pressure Breathing Air Compressor from April 1994 to May 1994. This test was to determine if the compressor, when operating at 5000 PSI, met Navy diving community requirements. Based on the test results MEDU recommends that the compressor be placed on the Approved for Navy Use list published by NAVSEA OOC. |
|
| Commercially Available Mares Regulators |
SEP 93 |
28 pages |
| Authors:
J. A. Noe; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Evaluations were conducted to determine which commercially available open-circuit SCUBA regulators were capable of meeting performance goat standards for Navy use. Bench testing of all candidate regulators was conducted to establish flow patterns and air delivery capacity. Unmanned testing using a breathing simulator at ventilation rates of 22.5, 40, 62.5, 75, and 90 L/min at test depths of 0 to 60 msw (0 to 198 fsw), in 10 msw (33 ... |
|
| Chemical Safety of U.S. Navy Diver's Breathing Gas Hoses |
JUN 92 |
26 pages |
| Authors:
R. S. Lillo; A. Ruby; J. M. Caldwell; R. C. Arlington; D. J. Greenwell; NAVAL MEDICAL RESEARCH INST BETHESDA MD
|
| Diver's breathing gas hoses manufactured according to a detailed military specification (MILH2815G, 17 Feb 1989) are used throughout the U.S. Navy. MIL-H-2815G details specific chemical offgassing requirements that the manufacturer of these hoses must meet. However, the U.S. Navy does not presently require a specific set of cleaning and/or testing procedures to be done by the user to insure that these hoses will not introduce potentially harmful chemicals into the ... |
|
| Market Investigation for Surface Supplied Diving Air Compressors |
12 JUN 90 |
303 pages |
| Authors:
PHILLIPS CARTNER AND CO INC ALEXANDRIA VA
|
| This paper reports the findings of a market investigation for air compressors that might be suitable for U.S. Army surface supplied diving operations. The goals of the survey and report were to determine whether it was necessary to develop a prototype compressor or whether there were commercial compressors suitable to Army needs. The report documents the effort and the results. Several commercial compressors were found that would fulfill Army needs ... |
|
| Hypercapnia during Deep Air and Mixed Gas Diving |
MAY 90 |
23 pages |
| Authors:
John A. Sterba; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Elevated carbon dioxide (CO2) levels in the blood, hypercapnia, can limit work capacity and diver safety. The risk of hypercapnia was determined in six U.S. Navy divers with underwater bicycle ergometery at 190 feet of sea water (FSW) breathing air, plus 300 and 1,000 FSW breathing helium-oxygen using a helmet (oro-nasal mask/demand regulator). Peak-to-peak mouth pressure (Delta P) and breath-to-breath end-tidal partial pressure of CO2 (PETCO2) were measured during sixth ... |
|
| Physiological Evaluation of Two Diver Active Thermal Systems (ATS): S- TRON and ILC-Dover |
MAR 90 |
60 pages |
| Authors:
J. A. Sterba; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Diver active thermal systems (ATS) have been developed to thermally protect divers remaining at rest for hours in exceptionally cold water. Two ATS, S-TRON and ILC Dover, consisting of closed circuit tube suits underneath undergarment/dry suit ensembles, were evaluated for thermal protection in eight U.S. Navy divers in 2 deg fresh water. S-TRON had panels of tubes covering the head, hands, and feet with intermittent coverage of the arms, thorax, ... |
|
| Canadian Underwater Mine Apparatus: Unmanned Performance Validation of the Second Prototype Second Stage Regulator |
AUG 89 |
|
| Authors:
D. Eaton; DEFENCE AND CIVIL INST OF ENVIRONMENTAL MEDICINE DOWNSVIEW (ONTARIO)
|
| The Canadian Underwater Mine Apparatus (CUMA) is a rebreather type apparatus employing a self-contained gas supply system that mixes pure oxygen with a diluent gas. The resultant gas mixture supplied to the counterlung has a constant oxygen partial pressure over the depth range of the apparatus. Operationally, the diluents used are nitrogen for depths up to 55 metres of seawater (msw) and helium to 80 msw. After the evaluation of ... |
|
| Full Face Mask for Use with MK 16 UBA |
JUL 89 |
27 pages |
| Authors:
Garry Ashton; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| This study served to evaluate full face masks (FFM) for use with MK 16 UBA. The five masks evaluated were separated into two groups based on capabilities of the masks. The first group included the British FFM, AGA Closed Circuit FFM and the Cressi-Sub FFM, all of which are non-developmental masks currently in use by various units world-wide. These masks simply provide facial protection (thermal and environmental) to the diver. ... |
|
| Geotechnical Diver Tools Operation and Maintenance Manual |
OCT 88 |
396 pages |
| Authors:
Barbara Johnson; NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
|
| Contents: General Information and Safety Precautions, Geotechnical Site Survey, Impact Corer, Scheduled Maintenance, Vane Shear Tool, Miniature Standard Penetration Test (MSPT), Rock Classifier, Water Pump, Jet Probe, Vacuum Corer. Keywords: Assembly, Operation, Core handling, Scheduled maintenance, Troubleshooting, Corrective maintenance, Illustrated, Parts breakdown, Tool kit, Shipping and storage, Data analysis, Procurement information, Diver equipment, Scuba diving, Safety equipment. (SDW) |
|
| Superlite 17B/Heliox 18B Testing |
AUG 88 |
129 pages |
| Authors:
David G. Kirby; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The Navy Experimental Diving Unit evaluated the SL-17B/NS MOD O diving helmet, SL-17B/NS MOD 1 diving helmet, and DSI-18B/NS (ex Heliox 18B) diving mask for surface supplied air and mixed gas diving using a gas supply pressure of 135 pounds per square inch over bottom pressure. The evaluation, consisted of unmanned objective work of breathing testing, manned subjective evaluation, manned objective evaluation and system compatibility studies. The SL-17B/NS helmets and ... |
|
| Unmanned and Manned Evaluation of a Prototype Closed-Circuit Underwater Breathing Apparatus, the EX 19 |
AUG 88 |
40 pages |
| Authors:
M. E. Knafelc; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The EX 19 is an advanced self contained closed circuit underwater breathing apparatus (AUBA). Two prototype designs, one from S-TRON, Redwood City, CA, and the other from the Naval Coastal Systems Center (NCSC), Panama City, FL, were evaluated for their breathing performance and canister duration by unmanned and manned testing procedures. The unmanned breathing resistance results of both prototypes met the Navy Experimental Diving Unit (NEDU) performance goals established in ... |
|
| Light Weight Diving System (LWDS) Prototype Technical Evaluation - Human Factors, Transportability and Suitability |
AUG 88 |
63 pages |
| Authors:
David G. Kirby; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| A prototype light weight diving system was evaluated for compliance with Mil Standards and human factors considerations. The supporting software was also evaluated. Over two days, 13 dives were conducted and applicable observations made. The system adequately supplied air to a single working diver at 20 FSW. Upon resolution of identified problems and discrepancies, the LWDS should prove acceptable to the fleet. The LWDS is a simple design using fundamental ... |
|
| Evaluation of Ready Operational Pierside Emergency Repair (ROPER) Diving Cart |
JUL 88 |
37 pages |
| Authors:
H. L. Pruitt Jr; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| In 1987 NEDU evaluated the Ready Operational Pierside Emergency Repair (ROPER) Diving Cart. Both manned and unmanned tests are conducted. The purpose of the test and evaluation was to determine the ROPER Diving Cart's suitability for fleet use. The evaluation revealed several minor discrepancies deserving correction prior to fleet use. The evaluation also found two major discrepancies with the ROPER Diving Cart. First, the cart is presently configured to support ... |
|
| Thermal Considerations When Using the MK 16 Mod O Underwater Breathing Apparatus in 4.4C (40F) Water |
FEB 1988 |
13 pages |
| Authors:
M. E. Knafelc; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| To assure safe dive planning, the CO2 absorbent canister duration limits, diver thermal protection, and decompression profile must be tested as an integrated package. The objective of this study was to evaluate the MK 16 Mod O closed circuit mixed gas SCUBA along with the equipment necessary to support diver for the longest HVAL 21 Decompression Table in 4.4 C (40 F) water. The diver's core temperature and oxygen consumption ... |
|
| Logistic Support for the Navy One-Man One-Atmosphere Diving System (NOMOADS) |
DEC 87 |
|
| Authors:
Michael P. Smith; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis examines the logistic support requirements of the Navy One-Man One-Atmosphere Diving System (NOMOADS). The introductory chapter provides a system description as well as the objectives and methods of the study. Next, a background chapter describes the acquisition and contracting aspects of NOMOADS. The main concern of the thesis is brought forth in the logistics chapter, which considers the concepts of reliability, maintainability, availability, spare parts requirements, and life ... |
|
| Unmanned Test and Evaluation of Two Double Lock Recompression Chamber (DLRC) Carbon Dioxide Scrubbers: The Kinergetics DH-21 and Aqua Breeze II 5000S |
SEP 87 |
76 pages |
| Authors:
K. M. Zwingelberg; M. D. Curley; J. McCarthy; J. Pelton; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The unmanned test and evaluation of two carbon dioxide scrubbers for use in the standard U.S. Navy double-lock recompression chamber are presented. Tests and evaluations were conducted under the auspices of the Navy Experimental Diving Unit to determine suitability of the Kinergetics Incorporated Scrubber, Model DH-21, and Amron International Diving Supply Scrubber, Model Aqua Breeze II 5000S for use in shore-based and shipboard Navy chambers. Both scrubbers were found suitable ... |
|
| Evaluation of the Tekna DV-3X and MIL-UNIT MOD S-5100 Diver Propulsion Vehicle |
AUG 87 |
|
| Authors:
Clark G. Presswood; David F. Godshall; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| NEDU conducted an evaluation of the Tekna DV-3X and MIL-UNIT MOD S- 5100. Static battery duration tests, open water/time distance trials, battery offgassing tests, and unmanned pressure tests were conducted. Both models were found to provide acceptable performance to a maximum depth of 130 FSW and are recommended for Authorized for Navy use (ANU) status. Approximate run times and speeds on propeller pitch setting 9 was one hour at 1.6 ... |
|
| Second Manned Evaluation of MK Mod 0 Closed Circuit Saturation Diving System |
SEP 86 |
|
| Authors:
H. J. Schwartz; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The Mk 14 Mod O Closed Circuit Saturation Diving System was tested using a new type of Manual Exhaust Valve, Safety Exhaust Valve, and Supply Valve during a simulated saturation dive to 1100 feet of sea water at the Navy Experimental Diving Unit. The MK 14 supported a working diver at 1100 FSW with the pump at 1000 FSW while in the normal, closed circuit mode; and at 1000 FSW ... |
|
| Evaluation of AGA Divator II Lightweight Umbilical Supplied Enclosed Space Diving System and Unmanned Testing of Widolf DF 400 and Prototype DSI (diving Systems International) EX0-26 Full Face Masks |
JUN 86 |
39 pages |
| Authors:
Christopher J. Tarmey; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Between August and December 1985 NEDU evaluated the AGA Divator II lightweight enclosed space diving system. Both manned and unmanned tests were conducted. The purpose of this series of tests was to determine the suitability of the AGA to replace the existing lightweight mask (Jack Browne) for diving in enclosed spaces. The Widolf DF-400 and Ryan 26 prototype underwent comparative unmanned tests. (Author) |
|
| Underwater Purging Procedures for the Draeger LAR V UBA (Underwater Breathing Apparatus) |
MAY 86 |
|
| Authors:
F. K. Butler Jr; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The U.S. Navy has identified a need to switch to the Draeger LAR V closed-circuit oxygen Underwater Breathing Apparatus from open-circuit air while underwater. The revised purge procedure described in NEDU Report 5-84 and subsequently approved for fleet use was tested only at 1 ATA. This study was carried out to develop a purge procedure suitable for use underwater. Three different purge procedures were tested. The incluence of diver position ... |
|
| Report Index for Years 1939-1985 |
MAR 86 |
286 pages |
| Authors:
L. La. Owens; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| In the continuing effort to make the information within Navy Experimental Diving Unit (NEDU) reports more accessible to the diving community, a computerized Key-Word-Out-of-Context (KWOC) index has been developed. Each year, an index will be produced that will contain all of the NEDU reports produced up to that time. In order words, each index will contain all of the reports that were listed in the previous index plus those that ... |
|
| Human Factors Evaluation of the Superlite 17B Helmet in the Surface- Supplied, Open-Circuit Mode |
JAN 86 |
41 pages |
| Authors:
Michael D. Curley; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| A human factors engineering evaluation of the Diving Systems International Superlite 17B diving helmet was conducted by the U.S. Navy Experimental Driving Unit. In the dry, unmanned bench portion of this assessment, several design recommendations were made to improve diver safety and operation of the helmet. The Superlite 17B was then evaluated side-by-side with the U.S. Navy MK 1 Mod S Diver's Mask during a series of in-water dives ranging ... |
|
| Manned Evaluation of the EX 15 Mod 1 UBA (Underwater Breathing Apparatus) Carbon Dioxide Absorbent Canister |
SEP 85 |
|
| Authors:
John L. Zumrick; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Manned canister duration studies using the EX 15 Mod 1 UBA were conducted at 3 different exercise levels; rest, 50 watts intermittent work and 100 watts intermittent work. Studies were conducted at a depth of 566 FSW using a breathing mixture of 0.7 ATA in nitrogen. Conclusions from this study were 1) The recommended EX 15 Mod 1 canister duration for most diving operations is 280 minutes independent of water ... |
|
| Design Guidelines for Carbon Dioxide Scrubbers. Revision. A |
JUL 85 |
77 pages |
| Authors:
M. L. Nuckols; A. Purer; G. A. Deason; NAVAL COASTAL SYSTEMS CENTER PANAMA CITY FL
|
| Design data and guidelines are presented to help predict the performance of axial flow carbon dioxide canister designs using alkali metal hydroxide absorbers. The design data are derived from a large series of laboratory tests conducted at the Naval Coastal Systems Center to isolate the effects of environmental and goemetric parameters on canister absorption efficiency. Sample canister designs are considered to demonstrate the use of the derived data to predict ... |
|
| The Use of Austenitic Stainless Steel versus Monel (Ni-Cu) Alloy in Pressurized Gaseous Oxygen (GOX) Life Support Systems |
MAR 85 |
|
| Authors:
B. Marsh; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Gaseous oxygen (GOX) must be stored at pressures up to 24 MPa (3500 psi) to provide the flow rates required to support the metabolic needs of a diver. A review of the literature concerned with materials compatibility in pressurized oxygen systems were conducted, with emphasis on metallic structural materials. Review of experimental and theoretical work on combustion of austenitic stainless steels and nickel-copper alloys revealed a consensus that Monel nominal ... |
|
| Technical Resources of Frogmen of Capitalist Navies (Technische mittel der Kampf-Schwimmer der Seestreitkrafte Kapitalistischer Staaten) |
13 DEC 1983 |
9 pages |
| Authors:
J. Haferberger; NAVAL INTELLIGENCE SUPPORT CENTER WASHINGTON DC TRANSLATION DIV
|
|
| Manned Testing of the Superlite 17B Diving Helmet Compared with the Mk 1 Mod S Diver's Mask |
JUN 1983 |
|
| Authors:
H. J. C. Schwartz; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The Diving Systems International Superlite 17B helmet underwent manned performance testing at a simulated depth of 850 feet of seawater during a helium-oxygen saturation dive in the Ocean Simulation Facility. The Navy MK 1 Mod S Diver's Mask was tested at the same time as a basis of comparison. Four subjects performed a total of 12 graded exercises (50-150 watts) on a submerged bicycle ergometer. Breathing characteristics of both UBA's ... |
|
| DRAEGER LAR V Underwater Breathing Apparatus and Life Jacket/Buoyancy Compensator U.S. Army Field Evaluation |
SEP 1982 |
|
| Authors:
R. W. Dowgul; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| In support of the pending interservice agreement on diving equipments, testing of the DRAEGER LAR V closed-circuit oxygen underwater breathing apparatus (UBA) for U.S. Army mission compatibility and equipment inter-operability was conducted. The scope of this evaluation was to determine the suitability of the LAR V UBA for use by Army Special Warfare Forces (combat divers) and compatibility with their missions and equipments, by testing it under actual field conditions. ... |
|
| Unmanned Evaluation of Six Closed-Circuit Oxygen Rebreathers |
JUL 1982 |
|
| Authors:
James R. Middleton; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| Six closed-circuit (C/C) pure oxygen rebreathers were evaluated in the unmanned mode by the Navy Experimental Diving Unit in accordance with Naval Sea Systems Command Task Number 81-16. The purpose of the task was to provide performance data on existing rebreathers to aid in the selection of a new C/C pure oxygen underwater breathing apparatus (UBA) to replace the current U.S. Navy C/C SCUBA (EMERSON). Breathing resistance/breathing work studies were ... |
|
| Maximum Depth Monitoring Apparatus. |
22 JUN 1982 |
|
| Authors:
Peter F. Berdzar; Robert S. Acks; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A depth monitoring device monitors the period of a diver's maximum depth. A maximum depth display is coupled to the depth monitor to enable the diver to quickly determine, at any given time during the period, his maximum depth of submergence. When the diver reaches a preselected critical maximum depth, an audio alarm coupled to the depth monitor is activated to alert the diver. |
|
| Development of a Seawater Hydraulic Tool System |
MAY 1982 |
|
| Authors:
R. Graham; G. G. Hastings; WESTINGHOUSE OCEANIC DIV ANNAPOLIS MD
|
| The Naval Civil Engineering Laboratory is developing diver-operated hydraulic tool system that uses seawater as the working fluid. The program was initiated in 1976 with the subsequent development of an experimental balanced vane by 1980. Late in 1980 a contract was awarded to improve the performance of the experimental vane motor and make it reversible; to couple the motor to a rotary impact mechanism with appropriate control to form a ... |
|
| Development of a Hydrogen-Fueled Diver Heater |
MAY 1982 |
|
| Authors:
Peter S. Riegel; BATTELLE COLUMBUS LABS OH
|
| In this research program breadboard heaters were developed which use the combustion of hydrogen in oxygen to heat a flow of water. Both a catalytic heater and a flame-burner were built and tested to an output level of 2 kW. A gas-powered water pump was designed and built to provide water circulation. |
|
| Evaluation of the EFCOM SC-100M/120M/125M Wireless Underwater Communicator |
APR 1982 |
|
| Authors:
James R. Middleton; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| In June 1981, the EFCOM SC-100M/120M/125M wireless communications system was evaluated in conjunction with the AGA DIVATOR 324 Full-Face Mask by the Navy Experimental Diving Unit. The purpose was to determine the systems suitability for U.S. Navy use with open-circuit Self-Contained Underwater Breathing Apparatus (SCUBA). The EFCOM system was evaluated for intelligibility, reliability and human engineering. (Author) |
|
| The Development of Predictive Engineering Formulations for Diver Heating. Volume 2 |
1982 |
|
| Authors:
Charles E. Johnson; James D. Collins; DUKE UNIV MEDICAL CENTER DURHAM N C F G HALL LAB FOR ENVIRONMENTAL RESEARCH
|
| Contents: Appendix A -- Organization of the Direct Access Experimental Data Files; Appendix B -- Composite Data File Listings for Files RHL1AR1, DTP1ART, DTP2AR1, and DTP3AR1; Appendix C -- Determination of the Viscosity (mu), Thermal Conductivity (k), and Other Properties for A 95% Helium - 5% Oxygen Gas Mixture; Appendix D -- Interactive Program Documentation; Appendix E -- Interactive Program Flow Chart; Appendix F -- Interactive Program Listing; Appendix G ... |
|
| The Development of Predictive Engineering Formulations for Diver Heating. Volume 1 |
1982 |
204 pages |
| Authors:
Charles E. Johnson; James D. Collins; DUKE UNIV MEDICAL CENTER DURHAM N C F G HALL LAB FOR ENVIRONMENTAL RESEARCH
|
| Predictive heat transfer equations have been developed to estimate the local supplementary heating necessary to support a resting diver. These formulations consider the diver's passive thermal protection in the form of a diving dress and the effects of his ambient environment upon the dress' thermal resistance. The mathematical model performs a numerical analysis on discrete composite layers comprised of the skin, dry protective suit, breathing gas mixture, and the surrounding ... |
|
| A Biomedical Assessment of a One-Atmosphere Diving System: JIM-4 |
DEC 1981 |
|
| Authors:
Arthur J. Bachrach; NAVAL MEDICAL RESEARCH INST BETHESDA MD
|
| Results of the biomedical assessment of a one-atmosphere diving system, JIM-4, conducted by personnel at the Naval Medical Research Institute, are presented in this final report. The report contains an historical perspective of one-atmosphere diving and a detailed research protocol that formed the basis of the assessment, which dealt in particular with human engineering and performance physiological assessments. Results of all experiments are summarized. |
|
| Investigation of Methods of Inspired Gas Heating |
30 OCT 1981 |
|
| Authors:
Peter S. Riegel; BATTELLE COLUMBUS LABS OH
|
| Existing technology in both active and passive means of divers' gas heating was reviewed. It was found that there are very few firms engaged in the production of hardware for gas heating, but that the active hardware presently produced it generally successful in its operation. Although some passive devices are marketed for regenerative recovery of exhaled heat, no widely used breathing apparatus today employs regenerative heating, in spite of the ... |
|
Reports by Keyword(s)
*DIVER EQUIPMENT
