There is apparently a multi called the Delta Force, Greg was saying about the Ikarus being a copy of it on Sunday.
I'm not aware of a Delta Force multi, but it would be interesting if there is one. I think there is probably some confusion between the Ikarus and the FSRO boats.
The A-180's do like to break a bit I think yes, but when they're running properly (for when they're running anyway) they're good engines. Of course there's no class for them anywhere...
Apart from breakages, various owner / users reported a multitude of other problems as well. The crankshaft is / was two crankshafts inadequately fixed together, and ultimately (and generally quite quickly), ending up as two crankshafts again. They reportedly suffered serious air / pressure leaks from the crankcase, inadequate induction, and even used wooden dowels painted silver as crankshaft plugs. I trawled various sites a while back, and couldn't find anyone with a good word to say about them. Of course, all these things may have been sorted out, but I think it was more of a concept engine than anything else, so they probably just stopped making it. Very hard to get any meaningful info on these engines.
The A-180 would be legal in OMRA "C" class (up to 50cc), but the equivalent multi / FSR-V class is size limited to 20cc.