In this paper the effect of fineness ratio on the hydrodynamic forces and moments generated on an axisymmetric body at inclined flow is studied. The present body is torpedo shaped with an elliptical nose, tapered tail and a cylindrical middle body. The nose and tail shapes and lengths of underwater vehicles are generally designed for minimum drag, proper inflow to propeller etc. The length of middle body is decided based on the internal volume requirements for carrying various payloads. This study deals with the estimation of hydrodynamic forces and moments acting on the axisymmetric body for five different fineness ratios varying from 10 to 15 due to inclined flow. The flow inclination is varied from 0° to 18°. The change in fineness ratio is obtained by changing the length of the cylindrical middle body only. The estimation is done by experimental, numerical and empirical means. Experiments are done in NSTL towing tank using a Planar Motion Mechanism (PMM) at a speed of 3m/s resulting in a Reynolds numbers of 2.2 × 107 to 2.9 × 107 depending on the fineness ratio. The axial force, normal force and pitch moment acting on the model was measured during the experiments using a 6 component dynamometer. Numerical study based on RANS was carried out using commercial CFD code Fluent 6.2 and the mesh generation was carried out using ICEM-CFD 10.0 meshing tool. A comprehensive study on mesh densities, domain size and turbulence models were done to establish the accuracy of numerical predictions. Empirical study is done based on a method suggested by Allen and Perkins. In this method the total cross force is estimated as a sum of potential cross force and viscous cross force, which is a function of cross flow drag. The numerical results are in very good agreement with the experimental values in addition to giving detailed predictions of flow field and force distributions. The empirical results agree reasonably well with the experimental results. The variation of forces and moments due to change in fineness ratio is estimated and its influence on the hydrodynamic behavior of the body is discussed. © 2014: The Royal Institution of Naval Architects and IIT Madras.