Forged in Fire (2015)

S06E11 Branch Battle: Air Force

Title: Aerial Combat: Forging the Future Plot: In the second round, four U.S. Air Force airmen are challenged to craft a bolo knife utilizing the san mai method, which involves melding high carbon steel with components from a helicopter. Meanwhile, two returning blacksmiths take on the task of creating an NCO sword for the Air Force, drawing on their skills and creativity to honor their military roots.