| The Shanghai Y-10 was a four engined commercial passenger jet aircraft developed in the 1970s by Shanghai Aircraft Manufacture Factory (now known as Shanghai Aviation Industrial Company., or SAIC). The Y-10 designation stands for Yunshuji ('transport') model 10. The Y-10 is noteworthy in that it was a reverse-engineered design of the Boeing 707 Model 120 with some minor differences. After thawing relations with the West in 1972, China had acquired a Boeing 707 fleet but decided to forge ahead with its own jetliner that was free of dependence on foreign parts, except for the American engine. The aircraft used Pratt & Whitney JT3D-7 turbofan engines, which were spares belonging to CAAC's small fleet of Boeing 707 aircraft. Shanghai had intended to use a Chinese-built Shanghai WS8 turbofan, but the Pratt & Whitney engine was selected before the WS8 could reach certification. The plane carried 178 in high-density, 149 in economy, or 124 in mixed-class. The flight deck had room for five crewmembers: pilot, co-pilot, flight engineer, navigator, and radio operator. | 
)
)
)
)
)
