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 [REF].
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 [REF].