"Cub Driver" wrote in message
...

Circular (or at least 360-degree) airfields were common at one time.
You put a stake in the center with a windsock on top. The aircraft
landing simply landed into the wind, wherever it was coming from.


Yes, but that's not what he's talking about. What you're describing is an
"all ways" airfield in which aircraft can land and takeoff in any direction,
but with a straight ground run. He's talking about a runway in a circle
where aircraft use a curvilinear ground track.