The PA-20 Pacer and PA-22 Tri-Pacer are a series of four-seat, propped shoulder-wing aircraft built by the U.S. Piper Aircraft after World War II.
The Pacer is basically a four-seat version of the two-seat Piper Vagabond. It has a fuselage made of steel tubes and wings made of a fabric-covered aluminum frame. This makes it similar in design to the well-known Cub and Super Cub. Many Pacers are still in use today due to their ruggedness, spacious cabin and – impressive in their day – speed.
Ex-factory, the aircraft were powered by engines rated at 125 hp (92 kW), 135 hp (99 kW), 150 hp (110 kW) and 160 hp (118 kW). Some examples were later rebuilt and equipped with a 180 hp (132 kW) engine.