Student Research Projects for the New Navy 44 Sail Training Craft

2003 ◽  
Author(s):  
Paul H. Miller
Keyword(s):  
Parametric Design ◽  
The United States ◽  
Analytical Tool ◽  
Fourth Generation ◽  
Design Criteria ◽  
Naval Academy ◽  
Research Projects ◽  
United States Naval Academy ◽  
Tool Evaluation ◽  
Offshore Sailing

Offshore-capable sail training craft (STC) specifically designed and built for the United States Naval Academy (USNA) have been a cornerstone of its seamanship training program since 1939. Currently the fourth generation of these craft is under development and this paper summarizes research projects performed by eight midshipmen in the areas of parametric design criteria, structures, appendage development and analytical tool evaluation. While the results are oriented toward the new sail training craft, they are general enough to apply to any medium-sized offshore sailing vessel.

Development and Initial Review of the Mark II Navy 44 Sail Training Craft

2009 ◽  
Author(s):  
Paul Miller ◽  
David Pedrick ◽  
Gram Schweikert
Keyword(s):  
The United States ◽  
Lessons Learned ◽  
Fourth Generation ◽  
Naval Academy ◽  
Design Decisions ◽  
United States Naval Academy ◽  
Design Changes ◽  
Design Detail ◽  
Technical Details ◽  
And Control

Offshore seamanship and navigation training in small sailing craft is a key component in the professional development of many midshipmen at the United States Naval Academy. Spanning six decades, the offshore sail training program uses purpose designed and built craft that occupy a unique niche in the sailing world. This paper details the development and initial feedback from the fourth generation craft. As the paper also includes significant technical design detail, it can also serve as a example of modern cruising yacht design. The paper identifies the major design drivers as well as the key design decisions with the background reasoning and research. Significant technical details of the hull, appendages, deck layout and rigging are presented, along with material selections and quality assurance and control processes. Midstream design changes are explained as well as feedback from the sea trials, delivery and initial racing and sail training use. Finally, the lessons learned from the entire process are presented for consideration.

scholarly journals 1342. TOSCANA: The Observational Seroepidemiologic Study of COVID-19 at the United States Naval Academy

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S758-S759
Author(s):  
Eugene Millar ◽  
Eric Laing ◽  
Adam Saperstein ◽  
Jitu Modi ◽  
Christopher Heaney ◽  
...  
Keyword(s):  
United States ◽  
Risk Factors ◽  
Blood Sample ◽  
Saliva Sample ◽  
The United States ◽  
Pathogen Transmission ◽  
Naval Academy ◽  
United States Naval Academy ◽  
Increased Risk ◽  
Seroepidemiologic Study

Abstract Background University students, including those at military service academies, are at increased risk of acute respiratory infection (ARI), including SAR-CoV-2, due to crowded living conditions, frequent social interaction and other factors that facilitate pathogen transmission. Unlike many universities, the United States Naval Academy (USNA) continued in-person instruction in Fall 2020 in the midst of the COVID-19 pandemic. The Observational Seroepidemiologic Study of COVID-19 at the United States Naval Academy (TOSCANA,) a longitudinal cohort characterizes the burden and risk factors of SARS-CoV-2 in USNA midshipmen. Methods Midshipmen were enrolled August- October 2020. Participants were queried about their ARI risk factors, COVID-19 history, and recent receipt of medical care for any ARI at enrollment, in December 2020 and again in May 2021. Subjects were also asked to provide blood and saliva samples to assess their SARS-CoV-2 serostatus at the same three timepoints. A saliva sample was collected by a subset of subjects in February 2021. Presence of anti-SARS-CoV-2 serum IgG in dried blood spots and saliva was measured by multiplex magnetic microparticle-based immunoassays. Results 181 midshipmen consented to the study and completed the baseline survey (Table 1). 17 (17.5%) of the 97 subjects who submitted baseline blood sample were SARS-CoV-2 seropositive. Only 4 (24%) positive individuals reported having been tested for or diagnosed with COVID-19 prior to arrival at USNA. 121 participants completed the midyear survey, of whom 61 (50%) submitted a blood sample. 16 (26%) of the midyear specimens were SARS-CoV-2 positive. Of these, 3 were new infections. 73 subjects completed the May survey, and 63 (100%) of the submitted blood samples were positive. 83 subjects provided baseline saliva samples, and ~55 submitted saliva at each successive time point. 1 (5%) was positive at enrollment, 9 (17%) were positive at midyear and 47 (96%) were positive in May. Table 1. Key characteristics of TOSCANA participants Conclusion SAR-CoV-2 prevalence in a sample of USNA midshipmen was < 20% at enrollment. A small proportion of subjects seroconverted between the September and December visits. SARS-CoV-2 positivity rose in May, following a COVID-19 outbreak in February and COVID-19 vaccination efforts in March at USNA. Disclosures Jitu Modi, MD, GSK (Speaker’s Bureau)

Numerical Simulation of Short Duration Hydrodynamic Impact

2014 ◽  
Author(s):  
Thomas C. Fu ◽  
Thomas T. O’Shea ◽  
Kyle A. Brucker ◽  
Carolyn Q. Judge ◽  
Christine M. Ikeda ◽  
...  
Keyword(s):  
Short Duration ◽  
Flow Analysis ◽  
The United States ◽  
Detailed Examination ◽  
Naval Academy ◽  
United States Naval Academy ◽  
Calm Water ◽  
Wedge Impact ◽  
Impact Experiments ◽  
Naval Surface Warfare

Numerical simulations of wedge impact experiments, undertaken by the Naval Surface Warfare Center, Carderock Division, NSWCCD, and more recently by the United States Naval Academy, USNA, Hydromechanics Laboratory, were performed using the computational fluid dynamics code Numerical Flow Analysis, NFA, to assess its capabilities in simulating the short duration hydrodynamic loading associated with free-surface impact. NSWCCD performed experiments using drop heights of 15.24 cm (6 in) and 25.4 cm (10 in), while the Naval Academy used drop heights of: 7.94, 12.7, 15.88, 25.4, 31.75, 38.1, and 50.8 cm (3.125, 5.0, 6.25, 10.0, 12.5, 15.0, and 20.0 in), measured from the keel of the wedge to the calm water surface. Simulations and comparisons were made at heights of 15.24 cm (6 in) and 25.4 cm (10 in) with the NSWCCD data, and 12.5 inches for the USNA data providing for a detailed examination of NFA’s ability to simulate and predict short duration hydrodynamic impacts.

Web-Based Data Analysis and Feedback for General Chemistry Laboratory: Improving Analysis with Timely, Distance Feedback

2002 ◽  
Vol 760 ◽  
Author(s):  
Joseph F. Lomax ◽  
Debra K. Dillner ◽  
Melonie A. Teichert
Keyword(s):  
General Chemistry ◽  
Data Analysis ◽  
The United States ◽  
Chemistry Laboratory ◽  
Naval Academy ◽  
Immediate Feedback ◽  
Web Based ◽  
United States Naval Academy ◽  
General Chemistry Laboratory ◽  
Typical Experiment

ABSTRACTIn a general chemistry course, while the hands-on experience of the laboratory is important, the goals of the laboratory are not fulfilled until the calculations and analysis are complete. Quite often students are capable of following laboratory instructions and generating excellent data, only to fail in the data analysis, which rarely occurs in the confines of the laboratory or the presence of the instructor. All too often, students are unable to learn important information from the interpretation of experimental results and draw correct conclusions because they make calculational errors, which are most often discovered by the instructor in the grading process. There is an opportunity for distance learning to help bridge the gap between collection of data and its correct analysis. At the United States Naval Academy (USNA), we have developed a Web-based system where the students input their data and calculational results into a web form with immediate feedback. The students are then allowed to correct their errors and resubmit. This system has been in successful use for 5 years. A description of a typical experiment will be discussed along with an assessment of student and faculty satisfaction with the program.

Using Articulate Virtual Laboratories in Teaching Energy Conversion at the U.S. Naval Academy

1997 ◽  
Vol 26 (2) ◽  
pp. 127-136 ◽  
Author(s):  
C. Wu
Keyword(s):  
Energy Conversion ◽  
Mechanical Engineering ◽  
Engineering Students ◽  
Teaching Method ◽  
Computer Software ◽  
The United States ◽  
Naval Academy ◽  
United States Naval Academy ◽  
Virtual Laboratories ◽  
Engineering Department

The Mechanical Engineering Department at the United States Naval Academy is currently evaluating a new teaching method which implements the use of a computer software. Utilizing the thermodynamic based software CyclePad, Intelligent Computer Aided Instruction (ICAI) is incorporated in an advanced energy conversion course (EM443) for Mechanical Engineering students. The use of the CyclePad software enhances lectures and aids students in visualization and design.

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