Capt. Perry W. Nelson, USN (Ret.), president of the Society of Naval Architects and Marine Engineers, a professional/technical organization for members of the mar rine industry, announced the following committee chairmen for 1986: STANDING AND SPECIAL COMMITTEES Advisory Public Service Committee— Donald P. Courtsal, vice president, acquisitions, Allegheny Financial Group, and vice president, Advisory Public Service for the Society.
Applications Committee—William duBarry Thomas, naval architect, J.J. Henry Co., Inc.
Audit Committee—Lester Rosenblatt, chairman of the board and chief executive officer, M. Rosenblatt & Son, Inc. and past president of the Society.
Awards Committee—Rear Adm.
Kenneth E. Wilson Jr., USN (Ret.), management consultant.
Banquet Committee—Roderick B. Hulla, project manager, J.J.
Henry Co., Inc.
Budget and Endowments Committee— Donald L. Caldera, chairman and chief executive officer, Bahama Cruise Line, Inc.
Dinner Dance Committee—Robert J. Bazzini, national sales manager, Transamerica Delaval, Inc.
Education Committee—William E. Zimmie, consultant, Hyde Products, Inc.
Exposition Committee—Robert G. Mende, secretary and executive director of the Society.
Fellows Committee—Prof. Richard B. Couch, Department of Naval Architecture and Marine Engineering, the University of Michigan and honorary vice president of the Society.
Finance Committee—Daniel D.
Strohmeier, past president of the Society.
Journal of Ship Production Committee— Prof. Howard McR.
Bunch, NAVSEA professor, the University of Michigan.
Journal of Ship Research Committee— Ralph D. Cooper, director, marine board, National Academy of Sciences and honorary vice president of the Society.
Long Range Planning Committee— Robert T. Young, consultant and past president of the Society.
Marine Technology Committee— Dr. William B. Morgan, Head, Ship Performance Department, David W. Taylor NSRDC.
Member Insurance Committee— Robert Axelrod, vice president, finance, J.J. Henry Co., Inc. and treasurer of the Society.
Membership Committee—Richard R. Hopkins, president, JJH Inc. of Virginia.
Nominating Committee—Donald E. Ridley, senior vice president and general manager, marine division, Bird-Johnson Company and vice president of the Society.
Papers Committee—Capt. Jack A. Obermeyer, USN (Ret.), consultant and honorary vice president of the Society.
Pension Committee—Douglas C. MacMillan, consultant and honorary vice president of the Society.
Principles of Naval Architecture Control Committee—John J.
Nachtsheim, consulting naval architect and past president of the Society.
Publications Committee—Roy L. Harrington, manager, modular construction, Newport News Shipbuilding and vice president of the Society.
Scholarships Committee—Capt.
Robert E. Stark, USN (Ret.), consultant and honorary vice president of the Society.
Sections Committee—Donald E.
Ridley, senior vice president and general manager, marine division, Bird-Johnson Company and vice president of the Society.
Technical and Research Advance Planning Committee—Naresh M.
Maniar, vice president, M. Rosenblatt & Son, Inc.
Technical and Research Finance and Administration Committee— David H. Klinges, vice president, marine construction, Bethlehem Steel Corp.
Technical and Research Steering Committee—Ronald K. Kiss, Director for Shipbuilding, Office of Assistant Secretary of the Navy (Shipbuilding and Logistics), Navy Department.
TECHNICAL COMMITTEES Hull Structure Committee—Dr.
Walter M. Maclean, acting director, National Maritime Research Center.
Hydrodynamics Committee— Frank H. Sellars, engineer, MPR Associates.
Marine Systems Committee— Edward M. MacCutcheon, consulting engineer.
Ship Design Committee—Donald P. Roseman, chief naval architect, Tracor Hydronautics, Inc.
Ship Production Committee— J e s s e W. Brasher, director, productivity and operational evaluation, Ingalls Shipbuilding.
Ship Technical Operations Committee— Thomas J. Sartor Jr., vice president, chartering, Farrell Lines, Inc.
Ships' Machinery Committee— Thomas P. Mackey, president and general manager, Hyde Products, Inc.
Small Craft Committee—Capt.
Richards T. Miller, USN (Ret.), naval architect and marine engineer and honorary vice president of the Society
of the increased marketing, sales, and production activities. Charles A. Orem, president and CEO, has announced the following appointments: Donald E. Ridley, in addition to his present responsibilities as senior vice president, has been named special assistant to the president charged with
long-term, successful involvement with Ingalls Shipbuilding and the U.S. Navy, company officers Charles A. Orem, Howard H. Scott, and Donald E. Ridley presented plaques commemorating the 100th propeller delivery to Archibald Dunn, vice president, Programs Management at Ingalls, and
Engineers, recently announced the society's committee chairmen for 1983. STANDING AND SPECIAL COMMITTEES Advisory Public Service Committee — Donald P. Courtsal, treasurer, Dravo Corporation, Pittsburgh, Pa., and vice president- Advisory Public Service of the society. Applications Committee
, deputy director, Naval Sea Systems Command, Washington, D.C.; Capt. Thomas A. Marnane, USN, commander, Pearl Harbor Naval Shipyard, Honolulu; and Donald E. Ridley, vice president, Bird-Johnson Company, Walpole, Mass. Serving a one-year term is Malcolm I. Comyn, naval architect, Esso Resources Canada
with measurements also is presented. Paper No. 13 — "Notes on Thrusters for Ship Maneuvering and Dynamic Positioning" by Ralph A. Norrby and Donald E. Ridley. SYNOPSIS—This paper presents the historical d e v e l o p m e n t of thrusters as maneuvering aids, as well as current thruster types
The Path to Zero – Sponsored EverClean The always clean performance solution • • • • Save fuel Reduce carbon Minimize downtime Maintain biosecurity Improve performance T e Four E’s of Marine Sustainability: EverClean’s Solution to Biofouling t is a new year, but the age-old problem of biofouling per-
. The International Maritime Organiza- tion’s Council (IMO) elected Arsenio An- tonio Dominguez Velasco from Panama as Lefton Joins RWE Velasco McDonald its secretary-general. He will take of? ce on RWE has hired former BOEM head January 1, 2024, for a four-year term, sub- Amanda Lefton as VP of
ing and naval architecture experience. His background is the Director of DLBA Naval Architects (formerly covers naval, commercial and recreational craft. Donald L. Blount & Associates, and now a part of Gibbs & Cox, A Leidos Company), a naval architecture 4 Barry Parker and marine engineering group
about a properly functioning system. The components of a UV’s Vehicle-Propulsor-Drive system are not individual performers. They must be in harmony. By Donald MacPherson, Technical Director of HydroComp, Inc. ften overlooked during system but it is there.) This suction is a “nega- understood by designers
Authors & Contributors MacPherson Maslin Weinstein services. A graduate of Webb Institute, MacPherson Weinstein Don is a Fellow of the Society of Naval Donald MacPherson is Technical Steve Weinstein is the senior vice Architects and Marine Engineers, and Director of HydroComp, Inc., a research president
courtesy: WWF/NorShipping The components of a UV’s Vehicle-Propulsor-Drive system are not individual performers. They must be in harmony. By Donald MacPherson Inside Terradepth 20 Ocean mapping at scale is the target of a new unmanned systems player started by two ex-US Navy SEALS. By Elaine
ORE Catapult HonuWorx and the Offshore Renew- able Energy (ORE) Catapult will soon demo a concept for a submers- ible mothership that the duo claims will make subsea robotics a sustainable and cost-effective solution for offshore wind farms. Funded by Innovate UK, the proj- ect will develop a submersible
Thruster Tech Underwater Propulsion Capturing performance data for Design of UVs By Donald MacPherson, Technical Director, HydroComp, Inc. onducting a sea trial is a nec- responsible for the drag load on the sys- If we cannot directly measure these essary step upon delivery of tem. The Propulsor produces
marine installation. Howard Kidorf is managing partner at Pioneer Consulting and a recognized MacPherson Thompson expert in optical transmission and Donald MacPherson is Technical Director Oliver Thompson is Market Intelligence telecommunications networks, having of HydroComp, a consultancy specializing
• Number 5 On the Cover TechnipFMC’s Gemini ROV. Photo from TechnipFMC. 8 Thruster Tech Capturing performance date for unmanned vehicle design. By Donald MacPherson 22 The Coral Warrior Professor Raquel S. Peixoto and her team @ KAUST focus on saving coral. By Greg Trauthwein 26 Time for Renewal
administration’s Coronavirus Task Force). Shortly thereafter, two other cruise majors, Royal Caribbean (RCL) and What might the future hold? CCL’s Mr. Donald, in the earnings guidance, stressed that: Norwegian Cruise Line Holdings (NCLH), joined forces and as- “The company expects future capacity to be
for Disease Control and Prevention (CDC). What else to do but look ahead? In preliminary earnings guidance, Carnival Corporation (NYSE: CCL), CEO Arnold Donald, stressed that the mar- ket leader was “… well positioned to capitalize on pent up demand and to emerge a leaner, more ef? cient company, rein- forcing
vessels. Clark was the kind of energy-safety issues that Sabine-Neches is con- asked for his perspective on the ? reboat market as he mon- fronting. Donald Durr, Director of Security & Vessels for itors emerging issues related to portside energy develop- Plaquemines Port, said port of? cials wanted increased
ech file T Propeller Considerations for Inland River Pushboats By Donald MacPherson, Technical Director, and Adam Kaplan, Project Manager Propeller Tools, HydroComp Images courtesy of HydroComp Figure 1 – Pushboat hull nland river pushboats operate in a harsh environment. ence of the vessel. Transiting
op- of HydroComp’s sister company, erational matters affecting the TrueProp Software LLC. United States maritime industry and on government contracts Donald MacPherson is Tech- across all industries. Kaplan Vogel nical Director of HydroComp, November 2020 MN
Director, Intl. Sales Propeller Considerations for Paul Barrett • [email protected] Inland Pushboats Tel: +44 1268 711560 Fax: +44 1268 711567 By Donald MacPherson and Adam Kaplan CORPORATE STAFF 57 Tech File: Deck Machinery Manager, Marketing Hose Cranes for New LNG Bunker Barge Mark O’Malley
100 MTRMTR that doesn’t respect political boundar- particles per liter of sea ice — two to agement of such contaminants in Ec- ies.” The microplastic problem is one of three times higher than what we’d found uador. Between June and September of macro proportion—and with each new in past measurements.
one hundred Naval Architecture Boksa Marine Design Donald L. Blount and Associates projects. The company is currently participating in sev- eral innovative projects from LNG fueled vessel designs to Elliott Bay new pressure barges. Design Group DLBA Naval Elliott Bay Design Group is a national leader
for hu- supported. leaders from Boris Johnson to Narendra manity, threatening our very survival. When I speak to shipowners, I usually Modi, and from Donald Trump to Xi Jing- And it’s not just about the long-term sus- fnd them eager to introduce green tech- ping, have rapidly introduced emergency tainability
Tech Feature UUV Propulsion Electric Motor Selection for Underwater Vehicles: Considerations of partial load ef ciency By Donald MacPherson, Technical Director, HydroComp, Inc. It is easy to appreciate why permanent the term “power” – one being the output that losses are of two types: dependent magnet
Authors & Contributors Manley MacPherson Maslin Stoichevski intervention to subsea robotics. Manley MacPherson Justin Manley is a technologist and Donald MacPherson is Technical Director, Stoichevski executive with experience in startups, HydroComp, Inc. William Stoichevski has written thousands corporatio
Ocean Institute. See story 20 page 42. 18 Electric Motors Considerations of partial load ef? ciency in electric motor selection for UUVs. By Donald MacPherson 20 eDNA There is a new buzzword in the ocean science/sensing community: eDNA, an Dartmouth Ocean Technologies Inc. and Sieben Laboratory
Connie Awards Board unanimously voted to extend since February 15, 2019. President luncheon in December. The scholar- CEO Eric Green’s contract through Donald J. Trump nominated Graham ships were awarded to cadets William ? scal year 2024. The new ? ve-year and Chapman and the Senate voted Quigley,
Trauthwein When you took the top spot at Gibbs & Cox in combatants for 44 nations. In 2015 we acquired 2016, what were your goals for the organization? Donald L. Blount & Associates (DLBA) bringing As a company that designs everything from yachts us an innovation center in the commercial, work- to work