The velocity of the apparent wind can be less than the true wind and from the same direction, if certain conditions are present. One condition is that the _________.
• True wind vs. apparent wind vector relationship • Effect of ship’s motion on apparent wind speed and direction • What happens when you move with the wind vs. into the wind
• Imagine standing on deck: in which case would the wind feel weaker but still seem to come from the same direction as the real wind? • Think about adding/subtracting velocity vectors: in which relative wind direction does the ship’s motion tend to cancel some of the wind speed instead of increasing it? • For each choice, picture a simple diagram with arrows for ship’s motion and wind direction and compare the apparent wind arrow length to the true wind arrow.
• Verify for each option whether the ship’s motion adds to or subtracts from the true wind speed when forming apparent wind. • Check in which option the apparent wind direction can stay aligned with the true wind direction instead of shifting toward ahead. • Confirm that the condition allows the apparent wind speed to be smaller than the true wind, not larger.
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