Sikorsky S-64
The Sikorsky S-64 Skycrane is an American twin-engine heavy-lift helicopter. It is the civil version of the United States Army’s CH-54 Tarhe. It is currently[when?] produced as the S-64 Aircrane by Erickson Inc.
The Sikorsky S-64 was designed as an enlarged version of the prototype flying crane helicopter, the Sikorsky S-60. The S-64 had a six-blade main rotor and was powered by two 4,050 shaft horsepower (3,020 kW) Pratt & Whitney JFTD12A turboshaft engines.
I saw one once. Don’t know why it was in a farmer’s field.