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Skipper wrote:
Here's the situation: You're 100 miles offshore and bailing to the liferaft. You've become disoriented and have lost your bearings. You reach for the GPS-12 and find it's DOA. Among your options is the sun compass. Do you know how to make and use one? Yes. Do you? To make an accurate sun compass requires an almanac and a watch. With a protractor, you could improvise if you had a good idea of the current declination of the sun. It's based loosely on the concept that the sun rises in the east and sets in the west, and at local noon will be either directly south or directly north, depending on which hemisphere you're in. With a protractor, you can draw angles on a card (or directly on the deck) and interpolate direction between sunrise and sunset. Now, can you do the same thing for the moon? ![]() Fair Skies Doug King |
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