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Steve, Your question does really not have an answer here on the board. Boat speed is affected by, actual wind conditions including gusts, set and drift from currents, speed and direct of currents, total weight aboard for supplies, equipment, crew, fuel and water, type and condition of sails, and a whole bunch of other factors. The hull speed, etc. can be calculated but in the end it is a matter of guesstemates and the distance covered can be a week to a month for the same distances. A biggy is the skills of the crew.
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To boldly go!!
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