The Fairchild Swearingen Metroliner is a 19 seat, pressurized, twin-turboprop airliner first produced by Swearingen Aircraft and later by Fairchild Aircraft at a plant in San Antonio, Texas.
The Metroliner was an evolution of the Swearingen Merlin turboprop-powered business aircraft. Ed Swearingen, a Texas fixed-base operator (FBO), started the developments that led to the Metro through gradual modifications to the Beechcraft Twin Bonanza and Queen Air business aircraft, which he dubbed Excalibur.
A new fuselage and vertical fin were then developed, married to salvaged and rebuilt Queen Air wings and horizontal tails, and Twin Bonanza landing gear; this became the SA26 Merlin. Through successive models the engines were changed to Pratt & Whitney Canada PT6, then Garrett TPE331 turboprops.