Dr. Greg Yandek (from left), shows Joe Gordon and Dr. David Walker a filament winder for composite rocket motor cases. Walker is a senior executive for the Air Force and is responsible for preparing policy, guidance and advocacy for the Air Force's annual $2 billion science and technology program. (U.S. Air Force photo/Kenji Thuloweit)

PHOTO BY: Kenji Thuloweit
VIRIN: 150924-F-IW159-002.JPG
FULL SIZE: 1.94 MB
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