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    Horizontal Angles while Kayaking
    From: Greg Rudzinski
    Date: 2019 Dec 1, 08:16 -0800

    David Burch discusses some very interesting piloting techniques in his book Kayak Navigation (page 136). It seems that for the average person that an image shifts 6° when observing with one eye then shifting to the other. This is known to kayakers as winking. The formula used is (10)(horizontal distance in nautical miles) = Distance off in nautical miles. This is a simplified version of the formula (60)(horizontal distance in nautical miles) / observed horizontal angle in degrees = Distance off in nautical miles. The latter formula can be used with a kayak paddle kamal. Lucky for me at arms length 1° = 1 cm making a paddle scale easy to make using a tape measure (see images).

    Greg Rudzinski

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