NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Robert Bernecky
Date: 2012 Dec 7, 06:17 -0800
>...wouldn't turning a sailboat into the current (as in my example) actually
>slow the speed through the water...?
The current does not slow the speed through the water (the current slows the speed over ground).
One way to think of it: the boat is sailing at 5 knots, but inside a giant bucket. The current is carrying the bucket backwards at 2 knots. The boat is measuring 5 kts through the water, and 3 kts over the ground.
Of course, we can remove the bucket, because the whole volume of water in the bucket is moving along at the current's speed as one "chunk of water"
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