Bell 47D-1 (H-13D-1) preparing to medevac wounded soldiers during the Korean War Published on December 7, 2013 in 8 December 1945Full resolution (715 × 570) ← Previous Next → The Bell 47 gained fame during the Korean War as a rescue helicopter, transferring wounded soldiers directly to Mobile Army Surgical Hospitals placed near the front lines. Here, a wounded soldier is offloaded from an H-13D-1 Sioux. (U.S. Army)