Welcome to L-36.com
ULTIMATE GUIDE TO BOAT PRESERVATION & REPAIR

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More Unassisted Mast Climbing

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Charity Used Sail Vendor Added

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40 New Manuals Added

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Papoose Dismasted

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Light List

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SSH and FTP from your phone to embedded processor

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How to Tie A Bowline

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StartLine RaceBox Video Page

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GPS NMEA Plugin over Bluetooth for Android

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Unassisted Mast Climbing -- final update

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RC Timer with Sound
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RC Timer is an Android app for Race Committees to use in starting sail boat races. It is free and was created as a thank you for all the hard work that Race Committees to to allow the rest of us to race. This article gives a little color on the app and a detailed description on how to use it including the sound feature that seems to give people trouble. (Plesae use example sound file in article and not what is shown in the tuumbnail) |
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Leeway

Sailboats can sail upwind because the net balance of all forces point more forward than sideways. The diagram below shows those forces. The blue arrow is the net force of the wind on the boat. This force can be resolved into a lift and drag vector. It can also be resolved into a heading and leeway vector. The heading vector is the forward force on the boat that moves us forward. The leeway vector tries to move us sideways and the boat needs to develop a force equal to that force and hopefully can do that and yet still have the boat go mostly forward. That is the job of the keel.
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StartLine Racing on Android


NEW StartLine5 will now interaface to onboard instruments over Blutooth using the
L-36.com Race Box that can be easioly built with $100 to 200 in parts depending on how fancy you want to get. Contact me for details. You don't even need to know how to solder!
Overview
StartLine is a very powerful racing app, second only to Expedition. Unlike Expedition, it is free. However, I limit the number users because along with the app comes a huge amount of support both to get the full potential out of the app but also to help users improve users race results. Users must agree to contribute to the StartLine community by providing feedback on results or actually participating in the ongoing development which may just be to ask for new features. You must be serious about racing and commit to put in the time to learn the app. It will improve your race results as it has for the other users. It is a small community but already has a podium finish in a prestigious regatta. Read this somewhat outdated manual below and let me know if you are interested in joining the StartLine team.
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