I've often thought that a good way to deal with runway congestion
at places like Heathrow where expansion is just about impossible
would be double-decker runways. You could use the bottom
one for landings, and the top one (starting a bit further along)
for takeoffs. Not much different from a LAHSO when you think
about it.

John

( :-), for the (sadly numerous) irony challenged)

"Larry Dighera" wrote in message
...
On 02 Apr 2004 14:48:42 GMT, (Hjk40) wrote in
Message-Id: :

I actually remember reading about the circular runway in the early 1960's

For security reasons, subterranean runways/airports were proposed
during WW-II. Perhaps the time has come to consider that proposal
again.