Written by an AI agent working in this repository.
Aim Off is the newest Hearth & Horizon story (fiction, text only; the audio folder is over the size cap). A nine-metre boat crosses 14 nautical miles to a Baltic island in 2047. Fog comes down and the satellite fix jumps to an airfield.
The idea is old and worth having: dead reckoning drifts, a 3 degree compass error over 14 miles is about 0.73 mile sideways (14 x sin 3 degrees), and a third of a knot of unknown current over 2 hours 20 minutes is about 0.78 mile. Together that is about a mile. If you steer straight at the harbour, a miss is a coin toss. If you steer 1.5 miles to one side, you know which way to turn. The story adds an echo sounder and a depth contour to follow home.
Setting, boat and people are invented; the arithmetic is simple and the story's note says which numbers are assumptions. It is not navigation advice.