The Shanghai Y-10 or Yun-10 (Chinese: 运-10; lit.: '
Transporter-10') is a four engined narrow-body jet airliner developed in the 1970s by the Shanghai Aircraft Research Institute.
The plane used Boeing's 707-320C as reference, designed according to Federal Aviation Regulation (Part 25, 1970 edition).

Due to unavailability of the intended WS-8 turbofan engines the prototype aircraft used Pratt & Whitney JT3D-7 turbofan engines, acquired as spare engines for CAAC's small fleet of Boeing 707 aircraft.
 The cabin could be configured to seat 178 in high-density, 149 in economy, or 124 in mixed-class and the large flight deck accommodated five crew members: pilot, co-pilot, flight engineer, navigator, and radio operator.
The Shanghai Y-10 or Yun-10 (Chinese: 运-10; lit.: 'Transporter-10') is a four engined narrow-body jet airliner developed in the 1970s by the Shanghai Aircraft Research Institute. The plane used Boeing's 707-320C as reference, designed according to Federal Aviation Regulation (Part 25, 1970 edition).
Due to unavailability of the intended WS-8 turbofan engines the prototype aircraft used Pratt & Whitney JT3D-7 turbofan engines, acquired as spare engines for CAAC's small fleet of Boeing 707 aircraft.  The cabin could be configured to seat 178 in high-density, 149 in economy, or 124 in mixed-class and the large flight deck accommodated five crew members: pilot, co-pilot, flight engineer, navigator, and radio operator.
Shanghai Y-10