Towards the requirement of medium-altitude long-endurance( MALE) unmanned aerial vehicle( UAV),the required high-lift,low-torque laminar airfoil was designed. Airfoil was parameterized by the class function /shape function method,aerodynamic solution used XFOIL software,and multi-objective genetic algorithm NSGA-II was selected for optimization. The performance of designed airfoil was checked by N-S equation based on transition model. Calculation results show that optimized airfoil has obvious fore-loading ...