Analysis of Longitudinal Aerodynamic Characteristics of an Aircraft Model with and Without Winglet Altab Hossain a *, Prithvi Raj Arora b , Ataur Rahman c , Abdul Aziz Jaafar b , A.K.M. Parvez Iqbal a a Department of Mechanical Engineering, University Industry Selangor, Jln Timur Tambahan, 45600 Batang Berjuntai, Selangor Darul Ehsan, Malaysia b Department of Aerospace Engineering, University Putra Malaysia, Malaysia c Department of Mechanical Engineering, International Islam...