Fitted with an O-320-A2B engine, this former French ALAT Cub 182540 is essentially a PA-18-150. The aircraft represents KLu Cub 'R-170'. The 'real' R-170, registered PH-WAS, was destroyed in a hangar fire at Seppe on 5th May 1982.
This L-21B was delivered to the RnlAF as R-177 (US serial 54-2467). The Historical Flight of the Dutch Air Force now operates it. It is seen here at the 2002 Lelystad airshow. (scan from print)