 St Croix Aircraft principals Chad and Charles Willie had built several Pietenopol Air Campers starting in 1941.The St Croix version of the Pietenopol Aircamper is longer and heavier than the original design, with slightly more wingspan.The St Croix Pietenopol Aircamper features a cantilever strut-braced parasol wing, two-seats in individual tandem open cockpits with windshields, fixed conventional landing gear and a single engine in tractor configuration.