RE: Phoenix Sukhoi Su-31 - Anybody have an opinion???
Many people have put an O.S. 61 in their phoenix models. I personally have their Extra 300S which is shipping to me this week and I am going to put my new Tower .75 in it with all Dubro horns and a pull-pull rudder system. Always remember more power = higher wing loads, but I feel a O.S. 46AX is not enough engine for it. Mount that .61 and enjoy watching it soar like a rocket, but remember wing flutter does start to occur when you reach speeds of 80ish mph. HAHA...Just kidding! Enjoy!