In a previous article, jsmith said:
A USN pilot got the idea for a circular runway after experiencing an
engine failure and landing on a country road.
Sounds like the old joke: "If somebody made a runway that stretched
around the world, Convair would make a bomber that couldn't take off from
it."
--
Paul Tomblin
http://xcski.com/blogs/pt/
Experience is that marvelous thing that enables you recognize a
mistake when you make it again. -- F. P. Jones