Latitude is measured by the angle at the Earth’s centre between the place in question and the equator. This image shows: The equator is at 0° The latitude of the North Pole is 90°N The latitude of the South Pole is 90°S The latitude of every point between must be either: Measured in degrees north […]
How are Latitude Angles Measured? Read More »
What do the Co-ordinates Mean? To find an exact position on Earth we must have two coordinates: Latitude and Longitude. Latitude and longitude are the lines that are drawn on charts (and maps). It is standard practice (and easier) to decimalise the minutes in order to use formulas for navigation. Latitude The equator: An imaginary
More importantly, what does that mean? Navigation is basically the art of determining where you are and what direction and distance you must go. Therefore, we must learn to find out where we are and what that means for us. We do this by understanding the nautical chart, plotting our position, and laying off direction
Where on Earth are we? Read More »
Hot or cold? Remembering that air flows clockwise around Low Pressure systems and anticlockwise around High Pressure systems, a fairly typical summer Australian weather map (below: Image One) shows: North to northwesterly winds over eastern Australia on the western side of a Tasman Sea high. They carry hot, dry air from inland Australia southward over
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Let’s delve into the nitty-gritty of What are Synoptic Charts? Synoptic Information The synoptic information is compiled from hundreds of weather observations around Australia. To create a complete picture of the weather around the world, weather observations are taken at agreed times at weather stations worldwide. They are then plotted onto a synoptic chart. They
What are Synoptic Charts? Read More »
A SisterShip Training Pouch with everything you need A stylish SisterShip pouch to hold all your chart work tools. Left sliding around in your nav station draw they can quickly become damaged and scratched. The pouch contains: Portland plotter, brass dividers, pencil compass, pencils, eraser, sharpener – all in one handy, protective, custom-made, (and
Navigation Tool Kit Read More »
Calling all boaters SisterShip/Partnership Training is coming to Moreton Bay AND Sydney AND Port Stephens Moreton Bay: 21st and 22nd September at the stunning Moreton Bay Trailer Boat Club: 34 Fairlead Cres, Manly QLD 4179 2. Sydney: 12th and 13th October at Pantaenius Sail and Motor Yacht Insurance, 33/6 Jubilee Ave, Warriewood NSW 2102 3. Port
Introduction to Coastal Navigation Course Read More »
Introduction to Coastal Navigation “Jackie has broken down very complicated content and presented it in a logical sequence. Well done!” “Jackie is super, knowledgeable and very informative, great at explaining. Thanks for a wonderful weekend, I’ll be looking forward to your next course!” “This session was FANTASTIC!!!” “Thank you for such an enjoyable and comprehensive
What happens if I lose my rudder? Wouldn’t it be great to hear about real-life scenarios on losing your rudder? What about storm preparation? Communications? Flooding? Abandoning Ship? When you set off for a record-breaking Antartica trip you HAVE to get this right! So YOU have a unique opportunity to discuss these matters with Lisa
It’s easy to identify the Southern Cross (aka Constellation Crux) as it’s a compact group of bright stars close together in the form of, well, a cross. The two pointers (aka Constellation Centaurus) are nearby pointing to the cross (diagram below). So, imagine the line between the two furthest apart stars (in the cross), and
The Southern Cross – Finding South Read More »
