{"id":6165404516520,"title":"Professional BoatBuilder #188 December\/January 2020\/21","handle":"professional-boatbuilder-188-december-january-2020-21","description":"\u003cp\u003e\u003cspan style=\"color: #189c25;\"\u003e\u003cstrong\u003ePlease use the \"pull-down\" to select the format you want to order... Print or Digital.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional BoatBuilder magazine\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDecember\/January 2020\/2021\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOn the cover:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 63′6″ (19.35m) waterjet pilot boat\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePolaris III\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ehangs ready for launch at Nordlund Boat (Tacoma, Washington) in August. Built in sturdy composites for hard service in the port of Long Beach (California), the new boat is an update of a 74′ (22.55m) model naval architect Tim Nolan designed 20 years ago. Story on page 32.\u003cbr\u003e\u003cem\u003ePhotograph by Dieter Loibner.\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3 class=\"toc-h3\"\u003eFEATURES\u003c\/h3\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10549\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-16-17.jpg\" class=\"wp-image-10549 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eDieter Loibner\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eVarnish Maintenance Coats. Pages 16\/17\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e16\/17 \u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eTEAR-OUT SUPPLEMENT\u003c\/span\u003e\u003cbr\u003eTask Sheet: Varnish Maintenance Coats\u003cbr\u003e\u003c\/strong\u003e\u003cem\u003eby Joni Blanchard\u003c\/em\u003e\u003cbr\u003eA guide to basic varnish repair and annual maintenance coats.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10543\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-20.jpg\" class=\"wp-image-10543 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eCourtesy Peter van Oossanen\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003ePhysics of sail propulsion. Page 20.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e20 The Deeper Science of Sailboat Design\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby Michael G. Morabito\u003c\/em\u003e\u003cbr\u003eA review of Peter van Oossanen’s\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eThe Science of Sailing: A Complete Guide to the Physics of Sailing and the Naval Architecture Governing the Performance of Sailing Yachts\u003c\/em\u003e.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10544\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-32.jpg\" class=\"wp-image-10544 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eDieter Loibner\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eBuilding a GRP pilot boat. Page 32.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e32 Pilot Boat Evolution\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby Dieter Loibner\u003c\/em\u003e\u003cbr\u003eLaunching\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePolaris III\u003c\/em\u003e, naval architect Tim Nolan and Nordlund Boat concluded a pilot boat project that built on their experience from a similar endeavor more than 20 years ago.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10545\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-46.jpg\" class=\"wp-image-10545 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eCourtesy DLBA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eEngineering aluminum frames. Page 46.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e46 In the Frame: Part 1\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby John Kecsmar\u003c\/em\u003e\u003cbr\u003eBasic parameters and essential considerations of frame design for aluminum boats.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10546\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-54.jpg\" class=\"wp-image-10546 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eCourtesy GreenBoats\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eBuilding with flax composites. Page 54.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e54 The Quest for Cleaner Composites\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby Hans Buitelaar\u003c\/em\u003e\u003cbr\u003eNew fibers and resins promise to reduce pollution, consume less energy in production, and yield composite boats that can be recycled.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"feature\"\u003e\u003cmain role=\"main\" id=\"main\" itemtype=\"http:\/\/schema.org\/Blog\" itemprop=\"mainContentOfPage\" itemscope=\"\"\u003e\n\u003carticle role=\"article\" class=\"cf post-9883 post type-post status-publish format-standard has-post-thumbnail hentry category-companies category-construction category-design category-c32-rovings tag-bruno-tideman tag-hdpe tag-high-density-polypropylene tag-mercruiser-alpha-sterndrive tag-patrol-boat tag-siemens tag-tideman-boats tag-waternet-amsterdam\" id=\"post-9883\"\u003e\n\u003csection class=\"entry-content cf\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan style=\"color: #2b00ff;\"\u003e“Your downloads are ready” will be the subject line of an email you’ll receive from us—once we’ve processed your digital order. That email has the link to click, so you can then download the file.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/article\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: #2b00ff;\"\u003eThis isn't an \"instant\" process, so if we're asleep, you may need to wait for regular business hours, for us to process the order. Although we are quite timely, we may not be processing on weekends \u0026amp; holidays. \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e","published_at":"2020-12-30T12:44:01-05:00","created_at":"2020-12-30T12:38:41-05:00","vendor":"Professional Boatbuilder","type":"1340 Professional BoatBuilder magazine","tags":["NEW"],"price":595,"price_min":595,"price_max":595,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":37542345965736,"title":"Print","option1":"Print","option2":null,"option3":null,"sku":"199-188","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Professional BoatBuilder #188 December\/January 2020\/21 - Print","public_title":"Print","options":["Print"],"price":595,"weight":227,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":37542345998504,"title":"Digital","option1":"Digital","option2":null,"option3":null,"sku":"199-188D","requires_shipping":false,"taxable":true,"featured_image":null,"available":true,"name":"Professional BoatBuilder #188 December\/January 2020\/21 - Digital","public_title":"Digital","options":["Digital"],"price":595,"weight":227,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188FC.jpg?v=1609423513","\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188ToC.jpg?v=1609423519"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188FC.jpg?v=1609423513","options":["Format"],"media":[{"alt":null,"id":13359331082408,"position":1,"preview_image":{"aspect_ratio":0.749,"height":1202,"width":900,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188FC.jpg?v=1609423513"},"aspect_ratio":0.749,"height":1202,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188FC.jpg?v=1609423513","width":900},{"alt":null,"id":13359331344552,"position":2,"preview_image":{"aspect_ratio":0.753,"height":1195,"width":900,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188ToC.jpg?v=1609423519"},"aspect_ratio":0.753,"height":1195,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0053\/4098\/7482\/products\/PBB188ToC.jpg?v=1609423519","width":900}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cspan style=\"color: #189c25;\"\u003e\u003cstrong\u003ePlease use the \"pull-down\" to select the format you want to order... Print or Digital.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional BoatBuilder magazine\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDecember\/January 2020\/2021\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOn the cover:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 63′6″ (19.35m) waterjet pilot boat\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePolaris III\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ehangs ready for launch at Nordlund Boat (Tacoma, Washington) in August. Built in sturdy composites for hard service in the port of Long Beach (California), the new boat is an update of a 74′ (22.55m) model naval architect Tim Nolan designed 20 years ago. Story on page 32.\u003cbr\u003e\u003cem\u003ePhotograph by Dieter Loibner.\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3 class=\"toc-h3\"\u003eFEATURES\u003c\/h3\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10549\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-16-17.jpg\" class=\"wp-image-10549 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eDieter Loibner\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eVarnish Maintenance Coats. Pages 16\/17\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e16\/17 \u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eTEAR-OUT SUPPLEMENT\u003c\/span\u003e\u003cbr\u003eTask Sheet: Varnish Maintenance Coats\u003cbr\u003e\u003c\/strong\u003e\u003cem\u003eby Joni Blanchard\u003c\/em\u003e\u003cbr\u003eA guide to basic varnish repair and annual maintenance coats.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10543\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-20.jpg\" class=\"wp-image-10543 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eCourtesy Peter van Oossanen\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003ePhysics of sail propulsion. Page 20.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e20 The Deeper Science of Sailboat Design\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby Michael G. Morabito\u003c\/em\u003e\u003cbr\u003eA review of Peter van Oossanen’s\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eThe Science of Sailing: A Complete Guide to the Physics of Sailing and the Naval Architecture Governing the Performance of Sailing Yachts\u003c\/em\u003e.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10544\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-32.jpg\" class=\"wp-image-10544 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eDieter Loibner\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eBuilding a GRP pilot boat. Page 32.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e32 Pilot Boat Evolution\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby Dieter Loibner\u003c\/em\u003e\u003cbr\u003eLaunching\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ePolaris III\u003c\/em\u003e, naval architect Tim Nolan and Nordlund Boat concluded a pilot boat project that built on their experience from a similar endeavor more than 20 years ago.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10545\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-46.jpg\" class=\"wp-image-10545 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eCourtesy DLBA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eEngineering aluminum frames. Page 46.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e46 In the Frame: Part 1\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby John Kecsmar\u003c\/em\u003e\u003cbr\u003eBasic parameters and essential considerations of frame design for aluminum boats.\u003c\/p\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"wp-caption alignleft\" id=\"attachment_10546\"\u003e\n\u003cdiv class=\"media-credit-container alignleft\"\u003e\n\u003cimg height=\"125\" width=\"161\" alt=\"\" src=\"https:\/\/www.proboat.com\/wp-content\/uploads\/2020\/11\/188-toc-54.jpg\" class=\"wp-image-10546 size-full\" loading=\"lazy\"\u003e\u003cspan class=\"media-credit\"\u003eCourtesy GreenBoats\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-caption-text\"\u003eBuilding with flax composites. Page 54.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e54 The Quest for Cleaner Composites\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eby Hans Buitelaar\u003c\/em\u003e\u003cbr\u003eNew fibers and resins promise to reduce pollution, consume less energy in production, and yield composite boats that can be recycled.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"feature\"\u003e\u003cmain role=\"main\" id=\"main\" itemtype=\"http:\/\/schema.org\/Blog\" itemprop=\"mainContentOfPage\" itemscope=\"\"\u003e\n\u003carticle role=\"article\" class=\"cf post-9883 post type-post status-publish format-standard has-post-thumbnail hentry category-companies category-construction category-design category-c32-rovings tag-bruno-tideman tag-hdpe tag-high-density-polypropylene tag-mercruiser-alpha-sterndrive tag-patrol-boat tag-siemens tag-tideman-boats tag-waternet-amsterdam\" id=\"post-9883\"\u003e\n\u003csection class=\"entry-content cf\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan style=\"color: #2b00ff;\"\u003e“Your downloads are ready” will be the subject line of an email you’ll receive from us—once we’ve processed your digital order. That email has the link to click, so you can then download the file.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/article\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: #2b00ff;\"\u003eThis isn't an \"instant\" process, so if we're asleep, you may need to wait for regular business hours, for us to process the order. Although we are quite timely, we may not be processing on weekends \u0026amp; holidays. \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e"}

Professional BoatBuilder #188 December/January 2020/21

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Please use the "pull-down" to select the format you want to order... Print or Digital.

Professional BoatBuilder magazine

December/January 2020/2021

On the cover: The 63′6″ (19.35m) waterjet pilot boat Polaris III hangs ready for launch at Nordlund Boat (Tacoma, Washington) in August. Built in sturdy composites for hard service in the port of Long Beach (California), the new boat is an update of a 74′ (22.55m) model naval architect Tim Nolan designed 20 years ago. Story on page 32.
Photograph by Dieter Loibner.

FEATURES

Dieter Loibner

Varnish Maintenance Coats. Pages 16/17

16/17 TEAR-OUT SUPPLEMENT
Task Sheet: Varnish Maintenance Coats
by Joni Blanchard
A guide to basic varnish repair and annual maintenance coats.

Courtesy Peter van Oossanen

Physics of sail propulsion. Page 20.

20 The Deeper Science of Sailboat Design
by Michael G. Morabito
A review of Peter van Oossanen’s The Science of Sailing: A Complete Guide to the Physics of Sailing and the Naval Architecture Governing the Performance of Sailing Yachts.

Dieter Loibner

Building a GRP pilot boat. Page 32.

32 Pilot Boat Evolution
by Dieter Loibner
Launching Polaris III, naval architect Tim Nolan and Nordlund Boat concluded a pilot boat project that built on their experience from a similar endeavor more than 20 years ago.

Courtesy DLBA

Engineering aluminum frames. Page 46.

46 In the Frame: Part 1
by John Kecsmar
Basic parameters and essential considerations of frame design for aluminum boats.

Courtesy GreenBoats

Building with flax composites. Page 54.

54 The Quest for Cleaner Composites
by Hans Buitelaar
New fibers and resins promise to reduce pollution, consume less energy in production, and yield composite boats that can be recycled.

“Your downloads are ready” will be the subject line of an email you’ll receive from us—once we’ve processed your digital order. That email has the link to click, so you can then download the file.

This isn't an "instant" process, so if we're asleep, you may need to wait for regular business hours, for us to process the order. Although we are quite timely, we may not be processing on weekends & holidays.

Sku: 199-188

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