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Archive for the Sailing Instruments Category

NMEA2000 Bus Details

NMEA2000 Bus Details

NMEA2000 is a marine version of the CAN bus developed by Bosch in 1983 for autos. It has a bus structure that lets several devices to connect to a single cable, allowing all to listen and talk to each other. Power is also distributed over the bus

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Ockam Bus Driver

Drive Ockam displays with the Ockam Bus Driver. The Ockam Bus Driver is in development and will be ready by the spring.  

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How to set up Expedition

How to set up Expedition

In many cases Expedition requires separate feeds for instrument and GPS data because the instruments do not provide position. In the case of Ockam, both instrument and position are available on a single feed, simplifying the hookup. Connecting Expedition by serial port Most systems only have serial

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How to Sail in Shifty Wind

How to Sail in Shifty Wind

How to Sail in Shifty Wind Wind shifts are annoying but they provide more opportunity for gain than anything else. Wind is never constant. This is not news to sailors, who are constantly dealing with shifting wind and wave to maximize performance. On this page, we’ll discuss wind

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What are Polars

What are Polars

Everybody talks about them, but what are they? What are Polars anyway? Ever hear someone talking about hitting their targets at the post-race party, and wonder why they were shooting at people? They’re not trying to shoot the competition, they’re just using polar plots of the boat’s

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What is Vmg

What is Vmg

Maximizing Vmg helps you win Vmg strands for Velocity Made Good. It is the component of your speed in the direction of the true wind. This is the number that you want to maximize to get to windward as fast as you can. There is also a

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Why Bother with Paddles

Why Bother with Paddles

Why not use GPS instead? Why bother with paddles? After all, why go to all the bother and expense of installing paddlewheels and a compass when you could just use a GPS. GPS provides the same information (not actually – keep reading) at a tenth the price

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Common myths

Common myths

Common myths In the sport of sailing, there are common myths that are “known to be true”. Unfortunately, some of them are wrong or inaccurate, and believing them can adversely affect performance. The reason for many of these myths is that there is no simple way to

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Wind Shear and Gradient

Wind Shear and Gradient

Wind has a third dimension Wind shear and gradient are universally existing natural phenomena caused in part by the earth’s boundary layer. They are differences in wind speed and direction that change with altitude. We define wind shear as a change in wind direction with altitude, and

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OckamSoft 5

OckamSoft 5

OckamSoft 5 is a modular software package that produces graphical displays, controls the instrument system, and provides connectivity via the internet for remote services. Overview OckamSoft 5 addresses modern color graphics and the confluence of Ethernet, WiFi and Internet technologies, and the multiple devices that can exploit

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