Hey, Under 4 lbs it will fly. I have a Pheonix models Sonic low wing with a Magnum 30 4 stroke in it. Its a dog but it is fun to fly. It is Over 4 lbs dry or close to it. Its so quiet it's almost like flying electric. I do knife edges and loops with it. Just not Low and not two in a row. That 4 star has to have more wing than my Sonic.
The sonic is on the far right.

Good Luck.