The U.S. Air Force spends millions of dollars replacing the 1970s-design wingboxes of C-130E and C-130H aircraft every 20 years or so. If the wingboxes were made of CentrAl, it wouldn't need to replace them. Here, an AC-130H Gunship aircraft from the 16th Special Operations Squadron out of Hurlburt Field, Fla., jettisons flares as an infrared countermeasure. Credit: U.S. Air Force photo/Senior Airman Julianne Showalter
