[mavyalex]

Actually that's really not a bad idea... What about taking off from an mountai airway (=short runway for light airplanes) like in Switzerland? And what about short runwya sin the jungle or on islands so that you must be very precise so as not to hit a tree?

Insteaf of bending the runway, it could be easier to build shorter runways hidden within islands or at medium altitude in mountain (let's say 2000 meters for example)...

You know what I'm talking about: look:

http://fr.youtube.com/watch?v=2o46rxK8Lpw