[2] The Fleetwing biplane featured three cockpits capable carrying four revenue sightseeing passengers.

The fuselage used (square and round) steel tubing with fabric covering.

The squarish fuselage featured a slanted radiator on the front of the lower cowling[3] The prototype PA-1 crashed after a flight with the control cables rigged backwards.

A second aircraft was built shortly afterward.

Data from AerofilesGeneral characteristics Performance