[2] Experience with this and with other light, low-powered machines convinced Pitcairn that while the concept was good, they presented significant handling problems to inexperienced pilots.

[2] The availability of more power contributed greatly to the aircraft's responsiveness at low speeds.

[2] According to Frank Kingston Smith Sr. wrote, "Pitcairn's assessment of the market had been correct: within a year and a half more than nineteen PA-18s were produced and sold, vindicating his decision to proceed with the basic machine while experimenting with the direct-control system.

"[3] In 2008, a PA-18 was restored to flying condition by Jack and Kate Tiffany of New Carlisle, Ohio.

Data from "Pitcairn, A G A, Pitcairn-Cierva, Pitcairn-Larsen"General characteristics Performance