When visiting Hochsauerland the following aircraft were seen in Niedersfeld next to the kart track:
MiG-23MF 457 PWL
MiG-21MF 7902 PWL with fake red star markings
Mi-2 Polish built c/n 564404115 in red c/s which would make it 4404 PWL
MiG-21UM c/n 01695156 (plate in nosewheel door) in green c/s. This c/n corresponds with 23+76/254 NVA. This airframe was demolished according to MiG,Mi,Su & Co. published by Lutz Freundt. According to EMOOS c/n should be 07695156 making it 23+83/266 NVA ex Bad Oeynhausen. Some sort of mix-up? I hope to get some response to figure this one out.