Message posted by DOn on January 09, 2008 at 16:45:24 PST:

Simple answer, Wind. You cannot control wind direction at the entrance to said tunnel thus landing would be very hard to do and very stupid if you were flying a secret aircraft that you didn't want to trash.

In Reply to: Underground Runways posted by Am-241 on December 11, 2007 at 23:26:58 PST:

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