Before revision: URL Blokarts are human-powered, as movement is initiated through manual resistance on the sheet rope, and wind does not actually propel them but it is the pressure difference created on either side of the sail when the sheet rope is pulled (high pressure on the side towards the wind, and low pressure on the side away from the wind).
After revision: consideredURL Blokarts are human-powered, as movement is initiated through manual resistance on the sheet rope, and wind does not actually propel them but it is the pressure difference created on either side of the sail when the sheet rope is pulled (high pressure on the side towards the wind, and low pressure on the side away from the wind).