S61N

About the S61N

The Sikorsky S61N is a civil rotorcraft serving as a commercial helicopter variant of a military design, produced in the United States. It functions in roles such as an airliner and oil rig support, accommodating multiple passengers and operated by a crew of pilots. The layout incorporates twin turboshaft engines and a main rotor.

Developed during the late 1950s as a commercial version of the Sea King, the type was created in land-based and amphibious versions to appeal to utility and offshore operators. It became widely utilized by scheduled helicopter airlines and for search and rescue operations. Early adopters included operators in Los Angeles, New York, and Chicago, though commercial airline operations faced economic challenges, accidents, and noise complaints, leading to eventual service closures for some early routes.