Hey guys i just wanted to make you awaare of what recently happened to me> First of all i crashed my first avistar that had a 40 LA on it And totaled the plane and the radio. Then i bought a new avistar arf and a 46 FX engine. I thought i would buy the engine that was good so i could use it in future planes. I found out all too quick that that engine was too powerful For my plane. After a few flights i got into a downward dive maybe only 30 degrees and pulled a little bit up and whatched as my wings snapped and my plane lawn darted into the ground creating a 4 foot crater. After i examined my plane i realized that it wasnt a bad glue joint but the spar actually snapped in half. The moral of the story is....Dont fly an avfistar with a 46 FX At full throttle.