On Wed, 11 Oct 2006 14:32:46 -0500, "Jim Macklin"
wrote:

Remember the Voyager had wingtip damage at take-off. They
did some maneuvers to break their winglets off.

A few years ago a 707 had an engine fire and melted about
half a wing off the airplane.
http://aviation-safety.net/database/...0628-0&lang=en

A vertical winglet would be easily compensated with rudder

Or differential power...

Dave