Harmen Pander was the managing director of a furniture company which in 1924 bought the assets of the bankrupt Vliegtuig Industrie Holland (VIH) company, which included the services of designers Theodorus Egbert Slot and H. Van der Kwast.

The design was suggested by pilot Dirk Asjes, who was critical of the slow development of Dutch airmail flights.

This was designated the S.4, and was known as the Postjager or Panderjager (and later, due to its mechanical unreliability, as the Pechjager - "Pech" being Dutch for "breakdown").

It made an emergency landing in Italy, but eventually arrived at Batavia after 72 hours and 20 minutes in the air.

During World War II Henk Pander, an enthusiastic member of the Dutch Nazi Party (NSB), refounded the company and built 555 SG-38 gliders for the German paramilitary NSFK, and repaired German aircraft.