08/31/2012. Remarks by Walter van Tilborg: "An original design of Frenchman André Kieger, the pictured first AK-01 was built by the designer. The two-seater had a largely wood and fabric construction and was mainly intended as a cheap to operate glider tug. Fitted with an 80 hp Limbach SL2000 engine, it was first flown on March 20, 1989. A second aircraft (F-PRLZ), fitted with an 115 hp Lycoming O-235 engine, was built by Jean-Claude Schillinger.

The AK-01T (F-PAKT) was a tricycle type landing gear development constructed by members of the aero club of Haguenau (of which Kieger was a prominent member) and the first example was first flown during 2004.".