The structure of an aircraft wing is relatively similar to a cantilever, a cylindrical beam with oneend fixed and the other end free. There are two dominant directions of motion, heaving and pitching. In acertain type of wing, flutter phenomenon can be analyzed from its 2D airfoil profile and its material characteristic. FLUTTW2D is a practical software tool to predict the flutter critical velocity of this typicalwing. The following paper describe basic concepts of the software design, including its appliedconditions, theory and physical equations which are referenced by the algorithm or FLUTW2D software. Keywords : flutter, airplane wings, computationFariduzzaman; UPT-LAGG BPPTeknologi, PUSPIPTEK, Serpong
