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Athena Technologies, now a Rockwell Collins subsdiary, blew half the right wing off a F-18 scale model in flight to demonstrate that its adaptive control system could automatically detect and react to damage, regain performance, continue to fly the aircraft and land it autonomously. Nothing was preprogrammed. The control system did not know which wing was going to be blown off, or when, says Athena. The test, conducted for DARPA, demonstrated real-time autonomous accommodation of damage, followed by adaptation of the control system to compensate for the damage.