Gary,

>> rcjon, that's a nice, simple stand. But for a Saito 100-120 you would definitely need more support for the engine mount. A piece of 3/4 inch plywood cut out to accept the engine is very simple and strong.<<

I dif to begger, but I built this stand for a S100 break-in and it ain't going nowhere unless the backyard picnic table goes with it. The stand "firewall" is certainly stronger than any R/C airplane firewall. Maybe the pic doesn't show the stand well. I admit a piece of ply cut to fit the engine is simpler, but that's hard to do with a Skil saw.