This document discusses various options for obtaining boat building plans, including building from scratch using available plans, purchasing a boat kit, or buying full-size paper patterns. It provides examples of adequately detailed plans the author has created, including plans for a 19-foot daysailer and an 18-foot-7-inch launch. Contemporary boat designers now offer extensive plans packages with drawings, specifications manuals, patterns, and construction guidance to aid amateur builders. Regulations must be considered for plans to build boats carrying paying passengers.
The purpose of this research work is to study the hydrodynamic characteristics of a new type of artificial reef structure, in order to provide a structure with low flow resistance, which will be a more suitable shelter for fishes and marine organisms. The idea of the new artificial reef is based on the streamlined bicycle helmet design concept. The hydrodynamic characteristics of the helmet and hollow cube artificial reefs (ARs) of the same volume have been studied at different water depths and wave frequencies of Malaysia seas using Computational Fluid Dynamics (CFD) method. The finite volume RANSE code Ansys CFX was used for calculating the reefs drag force (FD) and flow characteristics, while the potential flow code Ansys Aqwa was used for calculating the reefs inertia force (FI). The Shear Stress Transport (SST) turbulence model was used in the RANSE code. The results of the two ARs were then compared for studying the hydrodynamic improvement due to the use of streamlined helmet artificial reef on the flow pattern around it. The streamlined body of the helmet artificial reef enhances the flow pattern at the aft region of the reef and provides flow zones with moderate flow speed at this area, which can help fishes and marine organisms from finding good shelter. The special shape of the different openings in the body of the helmet artificial reef improves the condition of the flow velocity distribution inside the unit than that of the hollow cube unit, which can increase the amount of the nutrient to the living fishes and organisms inside the reef.
The purpose of this research work is to study the hydrodynamic characteristics of a new type of artificial reef structure, in order to provide a structure with low flow resistance, which will be a more suitable shelter for fishes and marine organisms. The idea of the new artificial reef is based on the streamlined bicycle helmet design concept. The hydrodynamic characteristics of the helmet and hollow cube artificial reefs (ARs) of the same volume have been studied at different water depths and wave frequencies of Malaysia seas using Computational Fluid Dynamics (CFD) method. The finite volume RANSE code Ansys CFX was used for calculating the reefs drag force (FD) and flow characteristics, while the potential flow code Ansys Aqwa was used for calculating the reefs inertia force (FI). The Shear Stress Transport (SST) turbulence model was used in the RANSE code. The results of the two ARs were then compared for studying the hydrodynamic improvement due to the use of streamlined helmet artificial reef on the flow pattern around it. The streamlined body of the helmet artificial reef enhances the flow pattern at the aft region of the reef and provides flow zones with moderate flow speed at this area, which can help fishes and marine organisms from finding good shelter. The special shape of the different openings in the body of the helmet artificial reef improves the condition of the flow velocity distribution inside the unit than that of the hollow cube unit, which can increase the amount of the nutrient to the living fishes and organisms inside the reef.
Freshwater and coastal aquaculture development can benefit from internal and external experience for preventing environmental damage and for avoiding harmful effects of degradation on aquaculture resources. Strategies to compensate for the loss of aquatic fauna (e.g. due to physical obstructions) are directly linked to important environmental issues, such as the transfer of exotic species, the spread of diseases and loss of genetic diversity, eutrophication, impairment of aesthetic qualities and the disruption of indigenous fish stocks.
There presently, conceptual frameworks for aquatic environment management backed by legal and administrative tools to create or enforce ration systems for water management, land use or fisheries and aquaculture development strengthened by adaptive institutionalization.
Eco-Friendly Fishing Lures: One of the best ways to practice sustainable fishing is to use biodegradable fishing lures. Since rubber doesn’t break down, in the water or in a fish’s stomach, a good substitute is biodegradable plastic that will dissolve over time. An added perk to these eco-friendly options is that the soft lures can be made in all colors and designs to attract your target fish just as effectively as traditional lures.
Eco Fishing Weights: Not only is lead toxic to humans, but it’s dangerous for fish as well, causing both physical and behavioral changes. That’s why many manufacturers today produce sinkers made from safer materials that will cause less damage if ingested or left in the water. Some common substitutes used in non-toxic weights are brass, steel, tungsten or tin. You’ll also want to make sure they’re chip resistant to prevent paint loss in the water. And remember that while these variations may be a little more expensive than lead lures, the benefits outweigh the costs.
Eco Fishing Line: Like lures, anglers today can opt for biodegradable monofilament line fishing line that breaks down faster yet still has the same performance characteristics as regular line. Even if you don’t have biodegradable line, you can take steps to properly dispose of your traditional line to reduce your impact on the environment. For example, many bait shops, fishing access points, piers and other spots have designated collection bins for discarded monofilament and fluorocarbon fishing line.
Other Eco Fishing Tackle and Equipment: Anglers have several other eco-friendly options nowadays. For example, when you’re choosing hooks, opt for circle hooks instead of J-hooks to minimize internal damage if you’re practicing catch and release. Look for rigs made of materials like glass beads. Pick knotless nets. Instead of using fresh bait collected from fish habitats, choose artificial. And when you’re picking out other gear like waders, bags or boxes, look for those made from recycled materials.
ECO-FRIENDLY ANGLING
Beyond fishing gear, there are other ways to practice eco-friendly fishing. If you catch and release, in addition to choosing barbless circle hooks, be sure to use the right eco-friendly fishing lures for the species to avoid exhausting the fish, keep your catch wet and limit the time the fish stays out of the water to increase the chance of survival.
It’s also important to pay attention to the area around you. Take your trash with you to prevent fish and other wildlife from eating or getting caught in your rubbish. If you’re boating, consider rowing or paddling a canoe rather than a motorized choice. If you do go in a power boat, be careful when you’re navigating over fragile habitats and be careful to prevent fuel spills.
The bulk of the world's fish meal and oil is today manufactured by the wet pressing method. The main steps of the process are cooking for coagulation of the protein thereby liberating bound water and oil, separation by pressing of the coagulate yielding a solid phase (press cake) containing 60-80% of the oil-free dry matter (protein, bones) and oil, and a liquid phase (press liquor) containing water and the rest of the solids (oil, dissolved and suspended protein, vitamins and minerals).
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
Types of Ecosystems
Terrestrial. A terrestrial ecosystem can be found in biomes only. Less water availability and its consequent...
Forest. A forest ecosystem is a natural wood land unit that consists of all microorganisms, plants, and animals...
Desert. While you may think of a desert as a dry and hot piece of land, it can also be a cool area. Disregarding the...
Grassland. Grasslands are mostly found in earth’s eco regions. They have different names in various continents.
Defence mechanism in finfish and shellfish jassi 2Jaspreet Singh
Farming of fish and shellfish has gained significant grounds in several parts of the world .
Now a days disease is main problem in aquafarming.
In recent years ,lot of attention is being given to health management using various forms of immunoprophylactic techniques such as vaccination and immunostimulation .
To reduce immunoprophylactic application ,it is vital to have insight into specific and non specific defense mechanism of farmed animal .
Through disease process studies ,it is very well known that a pathogen can cause disease only if it can overcome the non specific and specific defense barriers of the host and successfully establish and proliferate
Marine fisheries regulation act (mfra), and its amendments of gujrat and dama...Ashish sahu
Marine Fisheries Regulation Act
An Act to provide for the regulation of fishing by fishing vessels in the sea along the coast line of the State. (1) This Act may be called the Kerala Marine Fishing Regulation Act, 1980. (2) It extends to the whole of the State of Kerala.
The Disassembly Line: Balancing and Modeling provides in-depth information on this complex process essential to remanufacturing, recycling, and environmentally conscious manufacturing. This pioneering work offers efficient techniques required to solve problems involving the number of workstations required and the disassembly sequencing of end-of-life products on the disassembly line.
Freshwater and coastal aquaculture development can benefit from internal and external experience for preventing environmental damage and for avoiding harmful effects of degradation on aquaculture resources. Strategies to compensate for the loss of aquatic fauna (e.g. due to physical obstructions) are directly linked to important environmental issues, such as the transfer of exotic species, the spread of diseases and loss of genetic diversity, eutrophication, impairment of aesthetic qualities and the disruption of indigenous fish stocks.
There presently, conceptual frameworks for aquatic environment management backed by legal and administrative tools to create or enforce ration systems for water management, land use or fisheries and aquaculture development strengthened by adaptive institutionalization.
Eco-Friendly Fishing Lures: One of the best ways to practice sustainable fishing is to use biodegradable fishing lures. Since rubber doesn’t break down, in the water or in a fish’s stomach, a good substitute is biodegradable plastic that will dissolve over time. An added perk to these eco-friendly options is that the soft lures can be made in all colors and designs to attract your target fish just as effectively as traditional lures.
Eco Fishing Weights: Not only is lead toxic to humans, but it’s dangerous for fish as well, causing both physical and behavioral changes. That’s why many manufacturers today produce sinkers made from safer materials that will cause less damage if ingested or left in the water. Some common substitutes used in non-toxic weights are brass, steel, tungsten or tin. You’ll also want to make sure they’re chip resistant to prevent paint loss in the water. And remember that while these variations may be a little more expensive than lead lures, the benefits outweigh the costs.
Eco Fishing Line: Like lures, anglers today can opt for biodegradable monofilament line fishing line that breaks down faster yet still has the same performance characteristics as regular line. Even if you don’t have biodegradable line, you can take steps to properly dispose of your traditional line to reduce your impact on the environment. For example, many bait shops, fishing access points, piers and other spots have designated collection bins for discarded monofilament and fluorocarbon fishing line.
Other Eco Fishing Tackle and Equipment: Anglers have several other eco-friendly options nowadays. For example, when you’re choosing hooks, opt for circle hooks instead of J-hooks to minimize internal damage if you’re practicing catch and release. Look for rigs made of materials like glass beads. Pick knotless nets. Instead of using fresh bait collected from fish habitats, choose artificial. And when you’re picking out other gear like waders, bags or boxes, look for those made from recycled materials.
ECO-FRIENDLY ANGLING
Beyond fishing gear, there are other ways to practice eco-friendly fishing. If you catch and release, in addition to choosing barbless circle hooks, be sure to use the right eco-friendly fishing lures for the species to avoid exhausting the fish, keep your catch wet and limit the time the fish stays out of the water to increase the chance of survival.
It’s also important to pay attention to the area around you. Take your trash with you to prevent fish and other wildlife from eating or getting caught in your rubbish. If you’re boating, consider rowing or paddling a canoe rather than a motorized choice. If you do go in a power boat, be careful when you’re navigating over fragile habitats and be careful to prevent fuel spills.
The bulk of the world's fish meal and oil is today manufactured by the wet pressing method. The main steps of the process are cooking for coagulation of the protein thereby liberating bound water and oil, separation by pressing of the coagulate yielding a solid phase (press cake) containing 60-80% of the oil-free dry matter (protein, bones) and oil, and a liquid phase (press liquor) containing water and the rest of the solids (oil, dissolved and suspended protein, vitamins and minerals).
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
Types of Ecosystems
Terrestrial. A terrestrial ecosystem can be found in biomes only. Less water availability and its consequent...
Forest. A forest ecosystem is a natural wood land unit that consists of all microorganisms, plants, and animals...
Desert. While you may think of a desert as a dry and hot piece of land, it can also be a cool area. Disregarding the...
Grassland. Grasslands are mostly found in earth’s eco regions. They have different names in various continents.
Defence mechanism in finfish and shellfish jassi 2Jaspreet Singh
Farming of fish and shellfish has gained significant grounds in several parts of the world .
Now a days disease is main problem in aquafarming.
In recent years ,lot of attention is being given to health management using various forms of immunoprophylactic techniques such as vaccination and immunostimulation .
To reduce immunoprophylactic application ,it is vital to have insight into specific and non specific defense mechanism of farmed animal .
Through disease process studies ,it is very well known that a pathogen can cause disease only if it can overcome the non specific and specific defense barriers of the host and successfully establish and proliferate
Marine fisheries regulation act (mfra), and its amendments of gujrat and dama...Ashish sahu
Marine Fisheries Regulation Act
An Act to provide for the regulation of fishing by fishing vessels in the sea along the coast line of the State. (1) This Act may be called the Kerala Marine Fishing Regulation Act, 1980. (2) It extends to the whole of the State of Kerala.
The Disassembly Line: Balancing and Modeling provides in-depth information on this complex process essential to remanufacturing, recycling, and environmentally conscious manufacturing. This pioneering work offers efficient techniques required to solve problems involving the number of workstations required and the disassembly sequencing of end-of-life products on the disassembly line.
Do you want to make your lean facility more visual, but aren't quite sure how? Brady's new guide, The Pocketbook of Lean Visuals, can help you get started creating effective visuals today.
This pocket-sized reference book contains 50 tried-and-true visuals that can help your lean facility increase productivity and improve employee safety. It's packed with real-world photos and visual best practices.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Learn How to Gain Insights and Perspective from Think to Win co-author Peter ...McGraw-Hill Professional
Peter Klein, co-author of Think to Win, and founder of the growth-management consultancy PK Associates, presents Insights--Perspectives. This PPT discusses how to draw strategic conclusions for Consumer Insights.
McGraw-Hill Professional Business Insider Work Smarter Webinar Series presents Leading with Data: Boost Your ROI with Open and Big Data.
Joel Gurin and Prasanna Tambe discuss 2 hot new topics - open data and big data! You will learn how you can use them to gain the competitive edge in creating and developing a business and building an effective workforce.
For the webinar recording visit: http://bit.ly/mhpworksmarter
McGraw-Hill Professional Business Insider Work Smarter Webinar Series presents Leverage Content Marketing and Social Media to Engage More Customers
Take your marketing and your business to the next level with actual tactics and strategies leveraging content marketing programs from Joe Pulizzi and Jason Miles.
For the webinar recording visit: http://bit.ly/mhpworksmarter
McGraw-Hill Professional Business Insider Work Smarter Webinar Series presents Remarkable Leadership to Inspire Great Work.
Increase your leadership influence and inspire others as you make a difference that others will love with eight lessons from David Sturt and Perry Holley.
For the webinar recording visit: http://bit.ly/mhpworksmarter
Tasti D-lite has put itself on the map through its innovative merging of loyalty programs and social media. The Tasti-D-lite Way, the brand’s Chairman/CEO and VP of Technology reveal key lessons any company can use to build meaningful customer experiences and unprecedented loyalty through fresh approaches to social media marketing.
Using social media to engage customers is only part of the story. Here, readers will learn how to re-engineer businesses to compete and win in the age of social media marketing, and break through from being a brand that’s social friendly to one that forms meaningful, one-to-one relationships with their customers.
A quick look at today’s most pressing business issues through the eyes of Peter Drucker—the father of modern management
As technology, globalization, and business innovation advance at breakneck speed, the question “What would Drucker do now?” becomes more relevant by the day. More than anyone of his time, Peter Drucker understood how the individual, the organization, and society are interrelated. And no one better recognized and articulated the challenges facing all three—or came up with more practical solutions to those challenges.
Since 2007, the Drucker Institute’s executive director, Rick Wartzman, has been asking what Drucker would do on a regular basis— in his popular online column for Bloomberg Businessweek. In each piece, Wartzman introduces a current issue and provides a view of it through the eyes of Peter Drucker, based on his deep knowledge of Drucker’s ideas and ideals.
In The Speed Traders, Edgar Perez, founder of the prestigious business networking community Golden Networking, opens the door to the secretive world of high-frequency trading (HFT). Inside, prominent figures of HFT drop their guard and speak with unprecedented candidness about their trade.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
2. 2
plans
There are several ways To go once you have decided to build
a boat. you can build from scratch using plans from one of the many sources
available nowadays, buy a boat kit, or buy full-size paper patterns for hull
parts. refer to a current boating magazine or use online search for plans.
The boat of your dreams may be a simple rowboat, a boat for both rowing
and sailing, a daysailer or cruiser, a power craft for waterskiing or fishing
or both; or you may set your sights higher, and be satisfied only by a larger
powerboat for cruising. whatever the type and size, take your time selecting
plans. remember, it takes only a second to decide to build your own boat,
but it might take years to complete it.
There is a wealth of plans for plywood composite construction methods
such as the stitch-and-tape method, sometimes called stitch-and-glue or
taped-seam. This method is discussed in Chapter 11. some designers offer
full-size patterns for the hull parts to be made from flat sheets; others
furnish thoroughly dimensioned scale drawings for the parts.
lofting, discussed at length in Chapter 7, is the process of drawing hull
lines full size, working from the designer’s scale drawing. Much, if not all, of
this work is eliminated when building a hull by the stitch-and-tape method,
but such hulls are limited to the shapes that can be formed from flat panels.
There are also designs available for a number of other construction tech-
niques including lapstrake plywood, strip construction, and traditional
15
3. 16 Boatbuilding Manual
wooden construction, as well as for other methods and materials covered
by this book.
regardless of their source, try to determine whether the plans that interest
you are sufficiently detailed for you to completely understand the vessel’s
construction. It cannot be emphasized too strongly that good plans are well
worth their price, because their cost is but a fraction of the total cost of the
boat. The cost of the plans might be considered as insurance that the fin-
ished boat will be a success. when designers do not draw the profusion of
details that the novice builder would like to have, this book should be very
helpful in filling in some of the missing information.
I would warn you against making changes in the hull lines, heights of
superstructures, or locations of major weights. such procedures can result
in unsatisfactory performance at the least, or even downright reduction of
seaworthiness. Consult the designer before making any major changes, and
if he advises against them, you will be better off using plans that will give
you what you want without departing from the drawings.
ExamplEs of plans
I am using plans I drew over the years as examples of adequately detailed
drawings. The Rudder magazine, which unfortunately disappeared many
years ago, was once known far and wide for its down-to-earth practical
content and “how-to-build” small craft plans. I was fortunate enough to
be selected to do a number of these. In fact, in 1950 The Rudder collected
Figure 2-1.
Plans for this Herreshoff descendant,
the Somes Sound 12½, by Brooks Boats
Designs, run to 16 large sheets.
(Brooks Boats Designs)
4. plans 17
a series of my monthly boatbuilding articles and published them as Small
Boat Construction, which was actually the first edition of this book. The
majority of the illustrations from that first edition, drawn in 1949–1950,
still appear in the edition of Boatbuilding Manual you are reading now.
when it comes to building wooden boats, the old expression really is true:
The more things change, the more they stay the same.
Figures 2-2, 2-3, and 2-4 are plans for a 19-foot arc-bottom daysailer I
did in 1948 for The Rudder to the general specifications of the magazine’s
editor. I named this boat “Triton” (a name I do not think had been used for
a class of boats at that time). over the years I have heard good things about
the design from as far away as england (where the builder obtained the
framing lumber from an obsolete British army truck), Brazil, and Cuba, just
prior to the Castro revolution.
Figures 2-5, 2-6, and 2-7 are for a 1984 design for an 18'7" inboard-
powered launch I christened Barbara Anne. respectively, the figures are
a combination outboard profile and arrangement plan; the lines plan; and
the construction plan. a separate written specification for the various parts
on the construction plan is keyed to the circled numbers to avoid cluttering
up the drawing any further. running to three or four dense pages of scant-
lings and hardware, the specifications should of course be included in the
plans package you purchase for a boat.
over the last several years there has been a proliferation of small design
firms focused on the amateur boatbuilding market. The tendency has been for
these designers to develop and refine their plans packages to make them much
more understandable and user-friendly than they were years ago, even to the
point of providing fairly detailed written step-by-step instructions. Take some
time to identify and compare some of these designers, and remember that the
quality of the plans and the support available from the designer may end up
being as important to you as the size, construction type, and general configu-
ration of the boat itself. lots of them have websites nowadays, and those who
do not may be happy to talk to you on the telephone. If they don’t have time for
you before you become a customer, they probably won’t later on!
The plans package for a somes sound 121 ⁄2, a plywood lapstrake design by
Brooks Boats Designs, for example, includes seventeen plan sheets, a thirty-two-
page specifications manual, and twenty-seven pages of lists as well as seven
full-size pattern sheets covering dozens of individual parts. Brooks, like many
contemporary designers, has free study plans available online. Figures 2-8, 2-9,
and 2-10 show details from the full-size pattern sheets for this boat.
another approach to plywood boatbuilding that has gained consider-
able prominence over the last few decades is the stitch-and-glue method,
(continued on page 28)
5. 18 Boatbuilding Manual
Figures 2-2, 2-3, 2-4.
These plans were drawn by the author as part of The Rudder’s “How-to-Build” series and appeared in the
February 1948 issue of that publication. Large-scale blueprints were offered by The Rudder for use by home
builders. The arc-bottomed form makes this a relatively simple boat to build.
(The Rudder, reprinted with permission)
8. plans 21
Figures 2-5, 2-6, and 2-7.
Outboard profile and arrangement plan, lines plan (including the offsets), and the construction plan for the
18'7" inboard-powered launch Barbara Anne.
10. Figure 2-8.
plans
Forward sections, web frames, and mast bulkhead—full size in the original—for the glued-lapstrake Somes Sound 12½ design from Brooks Boats
Designs. (Brooks Boats Designs)
23
11. 24 Boatbuilding Manual
Figure 2-9.
Details of the stem profile, forefoot filler, and deck stringer from the full-size plan sheets for the Brooks Boats
Designs Somes Sound 12½. (Brooks Boats Designs)
13. 26 Boatbuilding Manual
Figure 2-10.
The transom knee, transom profile, and other details from the full-size plan sheets for the Brooks Boats
Designs Somes Sound 12½. (Brooks Boats Designs)
15. 28 Boatbuilding Manual
described in greater detail in Chapter 11. sam Devlin is a west Coast designer
who has refined and developed this method and has even written a book on it.
his plans, or study plans, for the 22-foot powerboat he calls the surfscoter
can be purchased at his website, devlinboat.com. Figures 2-11 and 2-12
show a few details from those plans demonstrating the attention he gives to
the specifics of construction and the needs of the amateur boatbuilder.
plans for Boats Carrying passEngErs for HirE
every year there is a great number of boats built to carry six or more fare-paying
passengers, whether it be for sightseeing, dinner and dancing, or, more likely,
fishing. If you are contemplating building such a craft, you should be aware
that, in the interest of safety, the construction and equipment of passenger-
carrying boats are regulated by the U.s. Coast guard. The regulations are not
unduly strict, but you should not start construction without at least obtaining
approval of the hull construction. The routine is fairly simple if you take the
time to consult with the closest office of the U.s. Coast guard. In general, an
application is made for the inspection of the boat, specifying the service, the
route, and the number of passengers to be carried. If there is a complete set
of plans, it should be submitted; otherwise, if construction is to be started
quickly, general arrangement drawings are necessary and also details of the
hull construction. The Coast guard has a book of regulations that spells out
the design and equipment requirements and lists the plans that must be sub-
mitted for approval. They no longer offer the book for free, but they can tell
you the location of a government bookstore that stocks the publication. The
regulations are also available online. you will find a great deal of guidance
at the Coast guard’s website. vessel construction and inspection information
can be found at the “Passenger vessel safety Program” page.
rEstoration
restoring old wooden boats and even early fiberglass boats has gained con-
siderable popularity. This is easy to understand since many of the older
designs have more appeal than the look-alike plans turned out today. Much
restoration is done by amateurs, but a good many professional shops are
kept busy catering to those who prefer the older, sometimes classic boats,
both sail and power, and can afford to have others do the restoration.
an amateur planning to restore a boat that has caught his eye should be
wary of one that has deteriorated beyond his ability to repair it, or one that will
require too much time and money—even if money is not important, an excessive
amount of time can destroy his enthusiasm before the job has been completed.
16. plans
29
Figure 2-11.
Detail from Sam Devlin’s plans for the Surfscoter 22 showing connection between hull and keel/stem. (Sam Devlin)
17. 30
Figure 2-12.
This detail from the General Details sheet of the Surfscoter 22 plans might help
the first-time builder evade a major pitfall of stitch-and-glue construction. (Sam
Devlin)
Boatbuilding Manual
18. plans 31
hardly a month goes by in which a boating magazine does not carry a classified
ad reading “1945 classic mahogany runabout, partially restored. . . .”
In any event, the situation is not unlike choosing plans from which to
build your dream boat—first be absolutely certain the design is exactly
what you want, and then, if you are not personally capable of making an
accurate judgment of the boat’s condition, hire a surveyor for the job. and
don’t use just any surveyor: get one that is unquestionably familiar with
the type of construction employed in the craft being considered.
BOATS BuiLT FROm PLAnS AnD KiTS
Building a boat from readily available plans is one tried-and-true approach.
Shown here are several boats for which plans and/or a kit is available.
An elegant line drawing of the Coquina, a traditional plank-on-frame interpretation
of a classic Herreshoff design available from D. N. Hylan & Associates. (Doug Hylan)
(continued)
19. 32 Boatbuilding Manual
Over the years, thousands of junior racers For modest ambitions, here is a trailerable
have trained on the Blue Jay, a 14-footer 25-footer, a Roberts design.
designed in 1947 by the venerable design (Bruce Roberts)
firm of Sparkman and Stephens. (Sparkman
and Stephens)
The Paper Jet is a hot little number—on a
reasonable scale—from Dudley Dix.
This Dix 43, built in aluminum, is shown at
(Billy Black)
anchor in Antarctica. (Franz Joho)
20. plans 33
This interpretation of the traditional Nova
Scotia Tancook Whaler was designed by
George Stadel and built by Bill Rogers
of Woods Hole, Massachusetts. This
photograph was taken before the internal
ballast was installed. (Bill Rogers)
The Surfscoter 26 is typical of the wide range Thousands of builder/sailors have lived
of boat plans using the stitch-and-glue method the tropical dreams on the innovative
available from Devlin Design Boatbuilders. catamarans of James Wharram. This is his
(Sam Devlin) Tiki model. (James Wharram)
21. 34 Boatbuilding Manual
BuiLDinG SeA KniGHT
Glen-L sells a variety of plans and other materials to support home boatbuilding.
Bill White purchased Glen-L’s plans for Sea Knight, set up his shop, started build-
ing, and launched the boat sixteen months later. (Photos and captions courtesy
Bill White.)
1. 2.
Building the form. The framing is white oak; holes were drilled
on the frame uprights before assembly.
3. 4.
The plywood for the hull was scarphed on Polyurethane enamel was applied over
the floor into 18-foot lengths and installed resin-based epoxy primer. No antifouling
as single sections. No fiberglass was used on paint was needed.
the boat.
22. plans 35
5. 6.
Once the hull was turned upright, epoxy Building the cabin.
was applied to the bilge. From this point
on in the construction process, attention
was paid to the placement of fixed
weight to achieve proper fore/aft and
port/starboard balance.
7. 8.
The cabin was built, and a flexible White polyurethane enamel was applied to
texture finish was applied to all exterior the topsides.
surfaces above the bumper rail.
9.
Sea Knight after launching.