Farner Werke C-3605
The F+W C-3605, nicknamed Schlepp ("Tug") or "Alpine Anteater", was a target towing aircraft operated by the Swiss Air Force from 1971–1987. The aircraft was developed during the latter half of the 1960s by the Swiss Federal Construction Works (Eidgenoessische Konstruktionswerkstaette) (EKW), renamed Farner Werke (F+W) in 1972, as a conversion of the existing C-3603 ground attack/target towing aircraft. Following a successful prototype conversion in 1968, 23 aircraft were converted between 1971–1973 with 2 still flying in private hands.
https://en.wikipedia.org/wiki/F%2BW_C-3605