The Aviation Art on Twitter: "Sikorsky H-34 by Masao Satake The #SikorskyH34 (company designation #S58) is a piston-engined military # helicopter originally designed by American aircraft manufacturer #Sikorsky as an anti-submarine warfare (#ASW)
Sikorsky S-58t · The Encyclopedia of Aircraft David C. Eyre
Sikorsky S58
Midwest Helicopter Airways Sikorsky S-58E N129NH – v1images Aviation Media