Chock Alignment by Peter Van Rossem Kc 2766 Into The

Total Page:16

File Type:pdf, Size:1020Kb

Chock Alignment by Peter Van Rossem Kc 2766 Into The MAGAZINE OF THE INTERNATIONAL DN ICE YACHT RACING ASSOCIATION RUNNER TRACKS MARCH 2020 CHOCK ALIGNMENT BY PETER VAN ROSSEM KC 2766 INTO THE DAWN TO MONTANA BY DEB WHITEHORSE 2020 NORTH AMERICAN CHAMPIONSHIP RESULTS 2 RUNNER TRACKS | MARCH 2020 CONTENT Cover Photo: Sean R. Heavey seanrheavey.com REGATTA SCHEDULE Continental and regional regattas for the 2019- 05 2020 season. IDNIYRA OFFICERS International class officers and North American 06 regional commodores. 10 DN TECHNOLOGY Another way to align your chocks on the runner plank. Photo: Gretchen Dorian By Peter Van Rossem, KC2766 GET A SAIL NUMBER MEMBERSHIP INFORMATION INTO THE DAWN TO MONTANA The North American championship went where no Contact Ray Gauthier US5576 14 regatta has gone before. Email: [email protected] By Deb Whitehorse ADVERTISE WITH US RESULTS Contact IDNIYRA Secretary Results from the 2020 North American Deb Whitehorse 22 championship. 1200 East Broadway Monona, WI 53716 Phone: 608-347-3513 Email: [email protected] RUNNER TRACKS is edited by IDNIYRA Secretary Deb Whitehorse MAGAZINE OF THE INTERNATIONAL DN ICE YACHT RACING ASSOCIATION | MARCH 2020 3 COMMODORE’S MESSAGE WARREN NETHERCOTE KC3786, NOVA SCOTIA, CANADA have three threads in this column: congratulations, tive to the contributions of our volunteers. I offer my an apology and technical specifications. apologies for this, and hope that we can do a better I job in future, with better communications between We have two new winners of the North American the Governing Committee and those who deliver the Championships and the Gold Cup. James ‘T’ Thieler regatta for our members. won the North American Championships in a tight, At both the North American Championships and the five-race series on Fort Peck Reservoir near Glas- Gold Cup there were concerns about compliance gow Montana. Lukasz Zakrzewski won a four-race with DN Technical Specifications. No valid protests series in Sweden after a challenging search for ice in against alleged specifications violations were filed in Europe. Congratulations to both of you. either regatta, although we did receive, and refuse specifications-related protests after completion of the North American Championships. Talk in the pits, both in Montana and Sweden, con- cerned several alleged technical violations: • Fairing of runner plank to runner chock inter- sections; • Use of carbon fiber foot-rests and bulkhead guards within hull structure; • Minimum radii of seat backs; • Recessed mainsheet block mounts; • Mast minimum weights; • Sailcloth specifications; and, • Bolt-rope construction. Photo: Gretchen Dorian Congratulations also to Western Region Rear Com- modore Daniel Hearn, and PROs Dan Heaney and Joe Norton, and their team, for organizing and run- ning a successful North American Championship. Montana set a new standard for ‘how far west will you go?’ It is a credit to their organization and lead- ership skills that so many of their original volunteers committed to the trek to Montana. Regional Rear Commodores organize continental or Gold Cup regattas on behalf of the IDNIYRA Govern- ing Committee and the IDNIYRA membership. Our Photo: Gretchen Dorian governing documents give the Governing Commit- tee a supervisory role at these regattas, providing In my own mind, some of these allegations are guidance or direction to the Regatta Chair and Race well-founded, but others are not. Regardless, there Committee as required. This year, some of the appears to be an increasing preparedness to ignore Governing Committee input was, at best, insensi- inconvenient specifications. Continued next page 4 RUNNER TRACKS | MARCH 2020 in the construction of ‘wood body’ runners; and, a One might say ‘so what’ for those things that don’t proposal to slightly reduce the minimum thickness of affect performance, but that attitude is likely the steel insert runner blades. I encourage your partici- beginning of a slippery slope. pation in this ballot. The Governing Committee Is concerned that infrac- Warren Nethercote KC3786 tions of technical specifications are becoming more widespread and has asked the Technical Commit- tee to examine the matter and to communicate with members. We hope that such communication will encourage improved compliance with techni- cal specifications. Should those communications fail, there are competitors who have indicated their intention to file measurement protests at the 2021 Gold Cup. I would much rather see willing compliance than disqualification of competitors from races. Finally, at about the same time as the publication of this Runner Tracks you should be receiving your first electronic ballot on changes to Technical Speci- fications. There will be four items: a proposal to eliminate the minimum weight of masts; a proposal to eliminate the centre of gravity requirement for masts; a proposal to drop the requirement for wood Photo: Gretchen Dorian CHAD ATKINS (401) 787-4567 [email protected] MIKE MARSHALL (401) 965-0057 [email protected] BJORN OSTERBERG +46 (0) 8544 80770 A NEW LEVEL OF [email protected] SKIP DIEBALL (419) 392-4411 SPEED [email protected] northsails.com MAGAZINE OF THE INTERNATIONAL DN ICE YACHT RACING ASSOCIATION | MARCH 2020 5 WESTERN EASTERN LAKES CENTRAL LAKES WESTERN LAKES CHALLENGE TBA TBA January 4-5, 2020 An unofficial regatta. idniyra.org idniyra.org idniyra.org December 14-15, 2019 dnamerica.org/forum/ dnamerica.org/forum/ dnamerica.org/forum/ iceboating.net Sailed on Lake Puckaway in Wisconsin. NORTH AMERICAN GOLD CUP & NEW ENGLAND CANADIAN CHAMPIONSHIP EUROPEAN CHAMPIONSHIPS CHAMPIONSHIP January 18-25, 2020 CHAMPIONSHIP TBA TBA Host Region: Western February 8-15, 2020 neiya.org idniyra.org idniyra.org idniyra.eu dnamerica.org/forum/ dnamerica.org/forum/ DN & ICE OPTIMIST JUNIOR WORLD CHAMPIONSHIP February 16-21, 2020 idniyra.eu 6 RUNNER TRACKS | MARCH 2020 GRETCHENDORIAN.COM 2020 NORTH AMERICAN CHAMPIONSHIP INTERNATIONAL CLASS OFFICERS 2019-2020 NORTH AMERICAN COMMODORE EUROPEAN COMMODORE Warren Nethercote KC3786 Attila Pataki M100 Nova Scotia, Canada Balatonfüred, Hungary Phone: 902-478-2517 Email: [email protected] Email: [email protected] EUROPEAN VICE COMMODORE NORTH AMERICAN VICE COMMODORE Timoleon Caravitis L37 Jody Kjoller US5435 Helsinki, Finland Temperance, Mi 48182 [email protected] Phone: 419-265-6779 Email: [email protected] EUROPEAN SECRETARY Attila Pataki Jr. M101 Balatonfüred NORTH AMERICAN SECRETARY Hungary Deb Whitehorse US2366 Email: [email protected] 1200 East Broadway Monona, WI 53716 EUROPEAN TREASURER Phone 608-347-3513 Jerzy Henke P58 Email: [email protected] Poland Email: [email protected] NORTH AMERICAN TREASURER Deb Whitehorse US2366 EUROPEAN JUNIOR PROGRAM 1200 East Broadway MANAGER Monona, WI 53716 Stan Macur P111 Phone 608-347-3513 Poland Email: [email protected] Email: [email protected] EUROPEAN WEBMASTER NORTH AMERICAN PAST idniyra.eu COMMODORE Dietmar Gottke G4 Robert Cummins Germany Oshkosh, Wisconsin [email protected] Phone: 920-573-1265 Email: [email protected] AGAZINE OF THE INTERNATIONAL DN ICE YACHT RACING ASSOCIATION | DECEMBER 2020 7 EUROPEAN INSURANCE MANAGER Niklas Müller-Hartburg OE221 Vienna, Austria Email: [email protected] NORTH AMERICAN REGIONAL COMMODORES CANADA MOUNTAIN LAKES John Curtis KC5514 Bill Van Gee US3435 Kingston, Ontario New York Phone: 613-328-4015 Phone: 315-483-6461 Email: [email protected] Email: [email protected] EASTERN LAKES WESTERN LAKES Chad Atkins US4487 Daniel Hearn US5352 Rhode Island Wisconsin Phone: 401 787 4567 Cell: 608-692-4007 Email: [email protected] Email: [email protected] CENTRAL LAKES NORTH AMERICAN JUNIOR PROGRAM Rob Holman US3705 MANAGER Michigan Ron Rosten Phone: 419 350 9658 Cell: 608-692-8816 Email: [email protected] Email: [email protected] 8 RUNNER TRACKS | MARCH 2020 Steve Orelebeke US4926 & Ron Sherry US44 in close racing action during the last race of the Gold fleet at the 2020 North American Champiionship. Photo: Gretchen Dorian Continued on page 10 Founded in 1997, Jeff Kent and Composite Solutions has manufactured high quality composite components for the marine sector for 20 years…. In 2017, Jeff has partnered with Sam and Oliver Moore to deliver engineering, prototype design, custom and production fabrication for Iceboating and beyond… Sam, Oliver, and Jeff along with our technical and sales engineers Chad Atkins USA-4487 (North America) and Tomek Zakrzewski P-55 (Europe) are working at a feverish pace revolutionizing mast design and construction. Call, email, or visit us to secure the latest and greatest iceboat technology. Jeff Kent [email protected] +1 (781) 335-4650 ext. 3 Oliver Moore [email protected] +1 (781) 335-4650 ext. 2 10 RUNNER TRACKS | MARCH 2020 ANOTHER WAY TO ALIGN YOUR CHOCKS ON THE RUNNER PLANK By Peter Van Rossem, KC 2766 Peter Van Rossem, John Curtis, Colin Duncan and I travelled to the 2019 Great Western Challenge to- gether. After dinner we typically got together to tell the usual lies, but we also talked about how we built and set up our DN’s. Here is what Peter Van Rossem (KC 2766) does to fix his chocks to his runner plank. Warren Nethercote t the 2015 DN Gold Cup in Kingston I was Should you decide to build something like this there fortunate to talk to Tomasz Zakrzewski P55 are points to note. Abetween races and I asked him a lot of • When you drill and counter sink for the 4 questions about iceboat set up. Among other things, holes in the chock holders, make sure you work he told me that
Recommended publications
  • The Neighbourhood Messenger
    THE NEIGHBOURHOOD MESSENGER NEWSLETTER OF THE ADOLPHUSTOWN-FREDERICKSBURGH HERITAGE SOCIETY Issue Number 8 February 2014 A Wintry World The winter solstice seemed to arrive this year with a frightening arsenal of severe winter weather. Spanning the full range of deep freezing temperatures and attendant fluffy snow, to rain, freezing rain and ice pellets, the weather served up conditions that ran from Our Society simply unpleasant to outright destructive. The falling of ice- Members of the Adolphustown- laden trees that downed power lines meant many of us were Fredericksburgh Heritage Society are without electricity in the days just before Christmas. This was a your neighbours, your friends, your family. near calamity for some, but it no doubt brought to mind how We are new to the area or have lived the people of this region endured the winters not so long ago. here all our lives. Some of us are Certainly there was hardship, and indeed tragedy, in the early descendants of the Loyalists who settled years of settlement along these shores and throughout the two the shores of the Bay of Quinte. We all share a desire to deepen our knowledge centuries that followed. However, winters of our past were not of the history of our local community and only to be survived. They also presented an opportunity to to share our passion with others. play: from sleigh or cutter rides along the roads or bays, to skating, tobogganing, ice fishing and iceboating. In this issue Our Executive of the Neighbourhood Messenger we will look at the many President: Angela Cronk ways winter has impacted life of the residents of our townships.
    [Show full text]
  • View December 2016 Part 2
    4 —————————— The Peconic Bay Shopper • • DECEMBER 2016 —————————— Preserving Local History The vintage ice boats of Orient include the following: “Platter” — Original name “Git-There”, the “Platter” (pictured below) was built about 1880 by Will Brown, a son of Orient’s famous whaler, Peter Brown. This is a diamond stay boat, quite different from the other vintage ice boats. The boat was owned by Edward King for many years and then by his daughter, Fran Demerest who sold it to Bob Sorensen. “Red Bird” — The “Red Bird”, built in approximately 1850 by Ed King’s father, Charles Henry King. The photo on the right, taken in 1968, shows Ed King at 79 years old with his favorite ice boat. Ed was probably the most avid ice boater in Orient ice boating history, at one time owning four of Orient’s vintage ice boats that included, the “Platter”, the “Eagle”, and the “Effie”. The photo on the facing page, taken in 1917, shows the “Red Bird” ice boat in Orient Harbor in a nicely controlled hike with Ed King at the helm. You may be able to see the ice plume off the stern runner. “Rival” — Built about 1880. One of the fastest boats in the Orient fleet. Owned by the John Tuthill family. www.FlandersHVAC.com Think First! Santa’s Elves Work 364Days aYear Cute? Sure, But Not Exactly What We’d Call Dependable... NEED SERVICE THIS HOLIDAY SEASON? Think Flanders First! 24/7/365 (Christmas Too!) 100% Heating, Cooling Since 1954 Certified and Comfort HEATING & Technicians Since 1954 HEATING & 24/7 Serving Emergency ALL of AIR CONDITIONING Service Eastern Suffolk
    [Show full text]
  • DOGAMI Open-File Report O-16-06, Metallic and Industrial Mineral Resource Potential of Southern and Eastern Oregon
    Oregon Department of Geology and Mineral Industries Brad Avy, State Geologist OPEN-FILE REPORT O-16-06 METALLIC AND INDUSTRIAL MINERAL RESOURCE POTENTIAL OF SOUTHERN AND EASTERN OREGON: REPORT TO THE OREGON LEGISLATURE Mineral Resource Potential High Moderate Low Present Not Found Base Metals Bentonite Chromite Diatomite Limestone Lithium Nickel Perlite Platinum Group Precious Metals Pumice Silica Sunstones Uranium Zeolite G E O L O G Y F A N O D T N M I E N M E T R R A A L P I E N D D U N S O T G R E I R E S O 1937 Ian P. Madin1, Robert A. Houston1, Clark A. Niewendorp1, Jason D. McClaughry2, Thomas J. Wiley1, and Carlie J.M. Duda1 2016 1 Oregon Department of Geology and Mineral Industries, 800 NE Oregon St., Ste. 965 Portland, OR 97232 2 Oregon Department of Geology and Mineral Industries, Baker City Field Office, Baker County Courthouse, 1995 3rd St., Ste. 130, Baker City, OR 97814 Metallic and Industrial Mineral Resource Potential of Southern and Eastern Oregon: Report to the Oregon Legislature NOTICE This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or sur- veying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. This publication cannot substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from the results shown in the publication. Cover image: Maps show mineral resource potential by individual commodity.
    [Show full text]
  • ESSENTIALS of METEOROLOGY (7Th Ed.) GLOSSARY
    ESSENTIALS OF METEOROLOGY (7th ed.) GLOSSARY Chapter 1 Aerosols Tiny suspended solid particles (dust, smoke, etc.) or liquid droplets that enter the atmosphere from either natural or human (anthropogenic) sources, such as the burning of fossil fuels. Sulfur-containing fossil fuels, such as coal, produce sulfate aerosols. Air density The ratio of the mass of a substance to the volume occupied by it. Air density is usually expressed as g/cm3 or kg/m3. Also See Density. Air pressure The pressure exerted by the mass of air above a given point, usually expressed in millibars (mb), inches of (atmospheric mercury (Hg) or in hectopascals (hPa). pressure) Atmosphere The envelope of gases that surround a planet and are held to it by the planet's gravitational attraction. The earth's atmosphere is mainly nitrogen and oxygen. Carbon dioxide (CO2) A colorless, odorless gas whose concentration is about 0.039 percent (390 ppm) in a volume of air near sea level. It is a selective absorber of infrared radiation and, consequently, it is important in the earth's atmospheric greenhouse effect. Solid CO2 is called dry ice. Climate The accumulation of daily and seasonal weather events over a long period of time. Front The transition zone between two distinct air masses. Hurricane A tropical cyclone having winds in excess of 64 knots (74 mi/hr). Ionosphere An electrified region of the upper atmosphere where fairly large concentrations of ions and free electrons exist. Lapse rate The rate at which an atmospheric variable (usually temperature) decreases with height. (See Environmental lapse rate.) Mesosphere The atmospheric layer between the stratosphere and the thermosphere.
    [Show full text]
  • 1 Sailboat Autopilot
    Sailboat Autopilot: Mainsheet Tender Module Jonathan Harris Engineering 90 2007 – 2008 Professor Fred Orthlieb 1 Abstract The Art of sailing a wind powered vessel relies heavily on the ability of the crew to trim the sails. Finding the right angle of the sail with respect to the vessel will apply the optimal amount of force with the least amount of drag on the boat. Using the idea that there is an optimal sail angle, a device has been constructed which based on wind direction relative to the boat calculates the optimal sail angle and adjusts the mainsheet accordingly. The tender is designed as a modular system that functions independent of an autopilot program that would be set to maintain a heading, hence it can be used with any autopilot system currently on the market or used independently with a sailor steering the vessel. 2 Acknowledgements Without the assistance of the Engineering Faculty and staff at Swarthmore College, this project would not be. I would like to thank the following professors for their assistance in bringing me to where I am today, and helping me complete this project. Fred Orthlieb Lynne Molter Erik Cheever Ani Hsieh Tali Moreshet Bruce Maxwell Nelson Macken Carr Everbach Grant Smith Doug Judy Don Reynolds Holly Castleman Thank you. 3 Table of Contents Abstract 2 Acknowledgements 3 Overview of the E90 Program at Swarthmore College 5 Objective 8 Reasons for Construction 9 Theory 11 Project Overview 33 Project Specifications 35 Design and Construction: Motor Selection 37 Motor Controller Selection 39 Battery Selection 41 Vishay Smart Position Sensors 43 Gears 44 Circuit Design 45 Testing 48 Discussion 49 Lessons Learned 51 Conclusion 52 Appendix 54 4 Overview of the E90 Program at Swarthmore College “Students work on a design project that is the culminating exercise for all senior engineering majors.
    [Show full text]
  • Lakes in Winter
    NORTH AMERICAN LAKE NONPROFIT ORG. MANAGEMENT SOCIETY US POSTAGE 1315 E. Tenth Street PAID Bloomington, IN 47405-1701 Bloomington, IN Permit No. 171 Lakes in Winter in Lakes L L INE Volume 34, No. 4 • Winter 2014 Winter • 4 No. 34, Volume AKE A publication of the North American Lake Management Society Society Management Lake American North the of publication A AKE INE Contents L L Published quarterly by the North American Lake Management Society (NALMS) as a medium for exchange and communication among all those Volume 34, No. 4 / Winter 2014 interested in lake management. Points of view expressed and products advertised herein do not necessarily reflect the views or policies of NALMS or its Affiliates. Mention of trade names and commercial products shall not constitute 4 From the Editor an endorsement of their use. All rights reserved. Standard postage is paid at Bloomington, IN and From the President additional mailing offices. 5 NALMS Officers 6 NALMS 2014 Symposium Highlights President 11 2014 NALMS Awards Reed Green Immediate Past-President 15 2014 NALMS Photo Contest Winners Terry McNabb President-Elect 16 2014 NALMS Election Results Julie Chambers Secretary Sara Peel Lakes in Winter Treasurer Michael Perry 18 Lake Ice: Winter, Beauty, Value, Changes, and a Threatened NALMS Regional Directors Future Region 1 Wendy Gendron 28 Fish in Winter – Changes in Latitudes, Changes in Attitudes Region 2 Chris Mikolajczyk Region 3 Imad Hannoun Region 4 Jason Yarbrough 32 A Winter’s Tale: Aquatic Plants Under Ice Region 5 Melissa Clark Region 6 Julie Chambers 38 A Winter Wonderland . of Algae Region 7 George Antoniou Region 8 Craig Wolf 44 Water Monitoring Region 9 Todd Tietjen Region 10 Frank Wilhelm 48 Winter Time Fishery at Lake Pyhäjärvi Region 11 Anna DeSellas Region 12 Ron Zurawell At-Large Nicki Bellezza Student At-Large Ted Harris 51 Literature Search LakeLine Staff Editor: William W.
    [Show full text]
  • HO 80 03 01 14: Homeowners' Form
    HOMEOWNERS FORM TABLE OF CONTENTS POLICY......................................................................... 1 SECTION I - CONDITIONS.........................................14 AGREEMENT................................................................1 SECTION I - HOW WE SETTLE LOSSES..................16 DEFINITIONS................................................................1 SECTION II - LIABILITY COVERAGE.........................18 Coverage E - Personal Liability..............................18 SECTION I - PROPERTY COVERAGE........................4 Coverage F - Medical Expense..............................18 Coverage A - Dwelling..............................................4 Coverage B - Other Structures.................................4 SECTION II - EXCLUSIONS.......................................18 Coverage C - Personal Property..............................4 Coverage D - Loss Of Use.......................................6 SECTION II - ADDITIONAL COVERAGE...................22 SECTION I - PERILS.....................................................6 SECTION II - CONDITIONS........................................23 SECTION I - EXCLUSIONS..........................................8 GENERAL CONDITIONS............................................24 SECTION I - ADDITIONAL COVERAGE....................11 POLICY This policy is a legal contract between you and us. Your policy consists of the DECLARATIONS, the HOMEOWNERS FORM, all ENDORSEMENTS, and your INSURANCE APPLICATION. The policy details the rights and duties of you and us. READ
    [Show full text]
  • East Antarctic Sea Ice in Spring: Spectral Albedo of Snow, Nilas, Frost Flowers and Slush, and Light-Absorbing Impurities in Snow
    Annals of Glaciology 56(69) 2015 doi: 10.3189/2015AoG69A574 53 East Antarctic sea ice in spring: spectral albedo of snow, nilas, frost flowers and slush, and light-absorbing impurities in snow Maria C. ZATKO, Stephen G. WARREN Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA E-mail: [email protected] ABSTRACT. Spectral albedos of open water, nilas, nilas with frost flowers, slush, and first-year ice with both thin and thick snow cover were measured in the East Antarctic sea-ice zone during the Sea Ice Physics and Ecosystems eXperiment II (SIPEX II) from September to November 2012, near 658 S, 1208 E. Albedo was measured across the ultraviolet (UV), visible and near-infrared (nIR) wavelengths, augmenting a dataset from prior Antarctic expeditions with spectral coverage extended to longer wavelengths, and with measurement of slush and frost flowers, which had not been encountered on the prior expeditions. At visible and UV wavelengths, the albedo depends on the thickness of snow or ice; in the nIR the albedo is determined by the specific surface area. The growth of frost flowers causes the nilas albedo to increase by 0.2±0.3 in the UV and visible wavelengths. The spectral albedos are integrated over wavelength to obtain broadband albedos for wavelength bands commonly used in climate models. The albedo spectrum for deep snow on first-year sea ice shows no evidence of light- absorbing particulate impurities (LAI), such as black carbon (BC) or organics, which is consistent with the extremely small quantities of LAI found by filtering snow meltwater.
    [Show full text]
  • Global Reporting Format AIS Aspects (SNOWTAM)
    Global Reporting Format AIS Aspects (SNOWTAM) Christopher KEOHAN on behalf of Abbas NIKNEJAD Regional Officer, Air Navigation Systems Implementation ICAO EUR/NAT Office ICAO EUR GRF Implementation Workshop (Frankfurt, Germany, 10-11 December 2019) What is GRF? • A globally-harmonized methodology for runway surface conditions assessment and reporting to provide reports that are directly related to the performance of aeroplanes. Aeronautical information Aircraft operators utilize the services (AIS) provide the Aerodrome operator assess the information in conjunction with information received in the RCR runway surface conditions, the performance data provided to end users (SNOWTAM) including contaminants, for by the aircraft manufacturer to each third of the runway determine if landing or take-off length, and report it by mean of operations can be conducted a uniform runway condition Air traffic services (ATS) provide safely and provide runway report (RCR) the information received via the braking action special air-report RCR to end users (radio, ATIS) (AIREP) and received special air-reports 2 Dissemination of information • Through the AIS and ATS services: when the runway is wholly or partly contaminated by standing water, snow, slush, ice or frost, or is wet associated with the clearing or treatment of snow, slush, ice or frost. • Through the ATS only: when the runway is wet, not associated with the presence of standing water, snow, slush, ice or frost. AIS • SNOWTAM • Voice ATS • ATIS 3 Amendment 39B to Annex 15 Amendment 39B arises from: • Recommendations of the Friction Task Force of the Aerodrome Design and Operations Panel (ADOP) relating to the use of a global reporting format for assessing and reporting runway surface conditions.
    [Show full text]
  • The Physics of Sqiling Bryond
    The physics of sqiling BryonD. Anderson Sqilsond keels,like oirplone wings, exploit Bernoulli's principle. Aerodynomicond hydrodynomicinsighis help designeri creqte fosterioilboots. BryonAnderson is on experimentolnucleor physicist ond,choirmon of the physicsdeportment ot KentSlote University in Kent,Ohio. He is olsoon ovocotionolsoilor who lecfuresond wrifesobout the intersectionbehyeen physics ond soiling. In addition to the recreational pleasure sailing af- side and lower on the downwind side. fords, it involves some interesting physics.Sailing starts with For downwind sailing, with the sail oriented perpen- the force of the wind on the sails.Analyzing that interaction dicular to the wind directiory the pressure increase on the up- yields some results not commonly known to non-sailors. It wind side is greater than the pressure decrease on the down- turns ou! for example, that downwind is not the fastestdi- wind side. As one turns the boat more and more into the rection for sailing. And there are aerodynamic issues.Sails direction from which the wind is coming, those differences and keels work by providing "lift" from the fluid passing reverse, so that with the wind perpendicular to the motion of around them. So optimizing keel and wing shapesinvolves the boat, the pressure decrease on the downwind side is wing theory. greater than the pressure increase on the upwind side. For a The resistance experienced by a moving sailboat in- boat sailing almost directly into the wind, the pressure de- cludes the effects of waves, eddiei, and turb-ulencein the crease on the downwind side is much greater than the in- water, and of the vortices produced in air by the sails.To re- crease on the upwind side.
    [Show full text]
  • A Detection System for Frost Snow and Ice on Bridges
    A Detection System for Frost, Snow, and Ice on Bridges and Highways MICHAEL F. CIEMOCHOWSKI, Holley Carburetor Company, Warren, Michigan The twofold problem of detecting frost, ice, and snow conditions on the deck areas of highway bridges and overpasses, and providing suitable warnings to motorists has become an increasingly important and critical highway safety problem on high-speed Interstate highways. The author de­ scribes a system developed by Holley Carburetor Co. that detects these conditions through the use of a combination ambient air and relative hu­ midity sensor on the bridge railing along with two other sensors buried in the bridge deck. The results of a 3½-year evaluation program of the sys­ tem that actuates a flashing sign on the Flint River bridge on I-75 near Flint, Michigan, are described. The paper also introduces a new dual-channel detection system for frost, ice, and snow. This system splits the anticipatory frost and the snow and ice signals into two separate signals. The anticipatory signal can be relayed as an early warning to alert maintenance staffs to send an observer to examine the conditions firsthand and pass a judgment on the need for chemical application or sign actuation. The early warning signal can also be used to switch-on electric heaters embedded in the deck. The separate ice and snow signal can be used to actuate a warning flasher. Also mentioned are two new applications of the dual-channel system on highways as the first application of a similar system on an airport runway. •THE FORMATION of frost, snow, and ice on the road surfaces of highway overpasses and bridges presents a real driver safety problem.
    [Show full text]
  • Basic Firecode, Frost Basic Firecode and Sandrift Basic Firecode Acoustical Panels
    GLACIER BASIC FIRECODE, FROST BASIC FIRECODE AND SANDRIFT BASIC FIRECODE COUSTICAL ANELS A P For over a century, sustainable practices have naturally been an inherent part of our business at USG. Today, they help shape the innovative products that become the homes where we live, the buildings where we work and the arenas where we play. From the product formulations we choose, to the processes we employ, USG is committed to designing, manufacturing, and distributing products that minimize Exceptional durability, good noise reduction and various texture options make overall environmental impacts and these panels an optimal, long lasting ceiling solution. These panels have the contribute toward a healthier living space. durability that resists scrapes commonly caused by accessing the ceiling We believe that transparency of product plenum. Noise reduction qualities make these panels a top choice to grace ceilings in an array of locations. information is essential for our stakeholders and EPDs are the next step toward an even more transparent USG. For additional information, visit usg.com, cgcinc.com and usgdesignstudio.com Glacier™ Basic Firecode, Frost™ Basic Firecode and Sandrift™ Basic Firecode According to ISO 14025, ISO Acoustical Panels 21930: 2007 and EN 15804 This declaration is an environmental product declaration (EPD) in accordance with ISO 14025. EPDs rely on Life Cycle Assessment (LCA) to provide information on a number of environmental impacts of products over their life cycle. Exclusions: EPDs do not indicate that any environmental or social performance benchmarks are met, and there may be impacts that they do not encompass. LCAs do not typically address the site-specific environmental impacts of raw material extraction, nor are they meant to assess human health toxicity.
    [Show full text]