4 ms·

the blades move sideways

• cblconfederate 5y ago
  if it sails away from the wind, the lift is pushing it sideways, not forward
  • jjeaff 5y ago
    And if you turn a sail sideways and put it on a spindle with several other sails, you have what looks a whole lot like a propeller. So instead of sailing sideways so that your air foil sail can move sideways through the wind, the Blackbird harnesses the power of sales moving sideways through the wind while pushing the craft directly into the wind.
    • mypetgoat 5y ago
      Exactly. The article does not understand this at all.
  • deleted 5y ago
    [deleted]