Controller design for airplane flight control is challenged to achieve an optimum result. particularly for safety purposes. The experiment evaluated the linear quadratic regulator (LQR) method to research the optimal gain of proportional-integral-derivative (PID) to hover accurately the bicopter model by minimizing error. The 3 degree of freedom (DOF) helicopter facility is a suitable... https://chefesquipmenters.shop/product-category/immersion-blender-parts-and-accessories/