COMMERCIAL AVIATION Turnaround specialist Melrose Industries has succeeded in its hostile take-over of GKN, the No. 2 aerostructures supplier. A majority of shareholders accepted Melrose’s wholesale buyout instead of pursuing a corporate breakup, ending a six-month public drama. Lockheed Martin’s Skunk Works has received a $247.5 million NASA contract to build an X-plane to show that sonic booms can be reduced to a low enough level to enable commercial supersonic flight ...