A 58 ft Roughwater, Sawn Song, cross to Hawaii, averaging about 6 kn. She had anti rolling tank for stability. She was for sale. Fuel tank size is 1200 gallons, but carried an extra 200 on deck in a blader. It you want to read about the anti rolling tank and the crossing, do a search of Sawn Song or Roughwater 58. The anti rolling tank was mounted on the pilot house roof so it did not effect the speed or range.
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