SIG 25% Cap 231 Ex Engine selection
I'm in the Saito 1.80/ OS 1.60 camp on this one. The fuse is just too fragile for a heavier engine. If you want to put a gasser on a 1.20 size CAP go with the Kangke CAP... the fuse is stout. And, I thought the plane flew much better than the SIG, FWIW.