VINER, Dimitry D. (Jimmy), Sikorsky test pilot, with model of S-51 helicopter Published on February 15, 2013 in 16 February 1946Full resolution (223 × 270) ← Previous Next → Sikorsky test pilot Dimitry D. (“Jimmy”) Viner, holding a model of the Sikorsky S-51 helicopter. (Sikorsky Archive)