 Two were built by a Swiss immigrant in Brazil, one of which is on display in the Museu Aeroespacial in Rio de Janeiro, the only recorded surviving original example One was built in the 1950s in Australia.In 1990 a reproduction Hols der Teufel, built from Jacobs' plans was flown from Dunstable; it is now in the Gliding Museum on the Wasserkuppe.The Slingsby Kadet was the result of a conscious "crossing" of the low wing loading soaring performance of the Hols der Teufel with the better handling of the Prüfling, particularly by improving the former's poor lateral control with better ailerons.