Monday, November20, 2017 L-36.com

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Articles for Boat Owners

Jibsheet Fairlead

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Do you find that you get wraps on your jib winches or just want give a better lead angle to the winch? In the last race we did, a new crew member got a wrap so tight that the only way to release it was to cut the sheet with a knife. We strung the lazy sheet to the secondary winch and took the pressure off but that was not enough to free the wrap, that is when the knife came out. The winch manufacturer recommends between 3 and 8 degrees as the ideal sheeting angle.

Mainsheet System Analyzed

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It isn't often you see a completely new way to rig a mainsheet. I saw this posting on Sailing Anarchy and though I would share an analysis of what they are doing and why. Here is a picture of the boat

More on Rings as Twings, Inhaulers, and Twings

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I have several articles on using rings as inhaulers and twings. This can be taken to extremes and the jib car can be eliminated and just the twing and inhauler used. It not only can be, that is how the TP-52 fleet is rigged. Here are some pictures to show it. This is a picture I took a couple of years ago at the Big Boat Series in San Francisco of the TP-52 Mayham

Calibrate a Marine Compass

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Everyone understands that a marine compass needs to be calibrated. It is easy enough to find articles on how to calibrate a marine compass but I found them lacking in two areas. First, they did not explain what was really going on such that I could understand why things were being done. Second, they all recommended you don't actually do the calibration yourself but rather hire an expert.

Low Friction Ring Mechanical Advantage

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I recently saw a picture of a three stage cascaded block system using low friction ring instead of blocks. This article analyzes such a cascade and shows how to calculate its effective mechanical advantage. The techniques shown can easily be extended to other systems. I will discuss one such system that I use on my boat.

Make your own Telltails

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I admit it, this is sailing nerdiness at its extreme. When I was a teenager I was a sailmaker at Spencer sails in Huntington New York. That was almost 40 years ago! I used to make the telltales when I worked there. It was always fun bringing pockets full out to customer's boats and giving them away like bringing cake or wine to a visit.

GPX CSV Waypoint Editor and File Converter

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New tool to enter waypoint files in either gpx or csv format, add new lines, convert them to either gpx or scv format and download them back to your computer. This is useful for creating and editing waypoint files for StartLine the new racing application for Android form L-36.com

Buying New Sails

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New sails represent one of the biggest investments you make in your boat. So when getting ready to make that purchase what things should you consider to make sure you get the product that best fits your needs and to insure you spend your money wisely?

Bluetooth GPS Receivers

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In this article, I will explain why you might want an external GPS receiver, what the various Android drivers do, and why I picked Bluetooth GPS Provider as my preferred app. Finally, I will explain all of the Preferences in Bluetooth GPS Provider, something you will not find anywhere else.

Almost Lost My Rig

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The ground for my antenna combined with a new lashing of my lifeline to the shroud almost caused the rig to come down.

Rock Box Blue -- First Look

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The new Rock Box is an impressive product. The waterproof case, O-ring sealed looks solid and well made. There is more to this product than just the start function as I will explain below.

Buying Used Sails

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Given the cost of purchasing new sails for your boat these days, some are turning to the used sail market. Here at Pacific Sail Trader we wish to give you the lowdown on how best to do it. Purchasing a sail without seeing it in person is the greatest concern of most buyers. Not being able to actually touch it seems to be the missing sense.

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.