The Swanson-Fahlin SF-1 was a high wing, two seat cabin aircraft with a small radial engine, designed in the United States and first flown in 1934.

Lacking manufacturing space of their own, and as they had chosen to design a smaller, less powerful development of the Swanson Coupe light aircraft around a Pobjoy engine, the facilities of the U.S. Pobjoy distributors, Nicholas-Beazely, provided a natural space for its construction.

[1][2] The SF-1 was a high, cantilever, gull wing cabin aircraft of all-wood and canvas construction.

[1] Its air-cooled, seven cylinder, 80 hp (60 kW) Pobjoy R radial engine was supplied with its own long-chord cowling which was merged smoothly into the forward fuselage.

At the rear the tail was conventional, with a near-triangular fin and deep, rounded rudder and a tailplane mounted near the top of the fuselage.