In the Autumn of 1944 Piper put out a list of aircraft that it proposed to have on sale after the end of the war. One of these was the Sky Sedan, a fabric covered aircraft with metal framed fuselage and wings, a 4-seat development of the 1942 model PT-1 Trainer powered by a 140 hp Franklin engine. When the first Sky Sedan appeared in March 1946, it was designated PA-6, and a 165 hp Continental E-165 was fitted. This aircraft was s/n 6-01 and registration NX580 and first flew on the 29th. A second aircraft appeared in 1947, which was all metal, fitted with a 185 hp Continental E-185 engine (205 hp available for take-off), hydraulic main gear with a fixed tail-wheel and a one piece windshield, which had s/n 6-1 and registration NC4000M. This aircraft was scrapped after the undercarriage failed and subsequently the tail was put on the PA-23 experimental aircraft. No more were built, but the first six production fuselages were built by Schweizer and delivered to Lock Haven. The project was cancelled due to the collapsed of the aircraft market.