Hangar 9 - Cap 232 1.20 Size?
My wife has one with a Saito 150 in it. Not really enough power for serious 3D type acro, but good for a budding IMAC flier. My flying buddy had one of the early kits and he tried to power it with a ST2300. By the time he sorted out the engine, the plane was toast. The firewall came loose, the gear mounts keep breaking and the aluminum gear is too soft. On my wife's airplane most of these problems are cured, except the aluminum gear, it is still too soft. I used a B&B gear doubler to cure the problem and it has been a good flier since. Some are just replacing the gear with one from TNT Landing gear, but I wasn't sure which part number they were using. Other than being a little heavier than most 120 sized acrobats, its not a bad deal. Now, I hear people using ZDZ 40s or Brison 2.4 to power them. I hope they beefed up that gear. An OS 160 FX would be a good choice also.