Keywords: Gyrodyne DSN-3 Drone Anti-Submarine Helicopter (DASH) mock up c1961.jpg A Gyrodyne DSN-3 Drone Anti-Submarine Helicopter DASH circa in 1961 This is a mock up of the pure drone configuration of this helicopter shown carrying two homing torpedos Official U S Navy photo http //www history navy mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/USN-1058000/USN-1058529 html USN 1058529 from the U S Navy http //www history navy mil Naval History and Heritage Command ca 1961 U S Navy PD-USGov-Military-Navy Gyrodyne QH-50 DASH |