Baniz, M D T Z Baniz, M D T Z, Faculty of Aerospace Engineering, Institute Technology of Bandung Budi Wintoro, Puput Burhanuddin, Yanuar, Department of Mechanical Engineering, Faculty of Engineering, University of Lampung, Building H – 2nd Floor, Jl. Prof. Soemantri Brojonegoro No. 1 Bandar Lampung 35143