N41WPCessna 150H

The pilot reported that, while flying in a valley, he realized that his airplane did not have the climb performance to clear an upcoming ridgeline. The pilot began a left turn to exit the valley in the direction he had entered. The pilot reported that, during the turn, he encountered a gust of wind that caused his left wing to drop and his rate of turn to increase. During the attempted recovery, the airplane lost altitude and impacted terrain which resulted in substantial damage to the wings and fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.