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Message: <blockquote data-quote="AUL LAD" data-source="post: 81493" data-attributes="member: 406">What moves the oceans twice a day every day  for millions of years  -- something the size of a planet would do.the boundary layer around a golf-ball has to be managed --we have to dimple it to get the ball to behave within the boundary layer .when i land an aircraft i have to push the stick into the ground starting at 1.5 times the wingspan as the boundary layer wants me to fly .cormorants fly at wave-top height as they can cover 3 times the distance flying in the boundary layer  using the same energy.Dornier the famous German seaplane co discovered  in the 1920s they could fly twice the distance for the same fuel burn if the pilots flew 100 ft over the surface . they developed a system where the pilots stood and wrestled with the non powered controls as they  had more situational  spacial awareness standing and flying at night took exhaustive concentration .</blockquote>

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