Has anyone on this forum built one of these? I'm getting post-build syndrome after completing my MiniMax, missing my time making sawdust. The ULF-2 looks a very well designed plane, & is one of the very few motor gliders available. I'm particularly interested to know of people's experiences with the belt drive 32hp Citroen Visa car engine specified as its powerplant. Looks good with its wide poly vee belt & pretty CNC'd ally parts. But does it hold up in the real world? I doubt the German certification authority would let it fly if it were not well proven, but there are many here on this forum who claim lightweight car engines are very hard to make work as aero engines - particularly with PSRU. I'd love to hear some first hand experiences.