BOEING COMMERCIAL AIRPLANE HAS HISTORICALLY USED A NEAR EQUAL MIXTURE OF COMPOSITE AND METALLIC TOOLING TO FABRICATE COMPOSITE STRUCTURES. HOWEVER, THIS BALANCE BETWEEN TOOLING MATERIALS HAS RECENTLY SHIFTED TOWARD METAL, PRIMARILY TO ACHIEVE MORE DURABLE TOOLING FOR HIGH PRODUCTION RATE APPLICATIONS. THIS TOOLING TREND IS SUPPORTED BY 737 ELEVATOR AND FLAP TRACK FAIRING CASE STUDIES.
