An airliner intake mirror, from a DC-9 jet engine, USA, circa 1975.

Height: 128 cm.

Width: 120 cm.

Depth: 22 cm.

The McDonnell Douglas DC-9 is an American Narrow-body jet airliner designed by the Douglas Aircraft Company. It was initially produced as the Douglas DC-9 prior to August 1967, after which point the company had merged with McDonnell Aircraft to become McDonnell Douglas. The DC-9 is powered by two rear-mounted Pratt & Whitney JT8D low-bypass turbofan engines under a T-tail for a cleaner wing aerodynamic.