Advancement in underwater technology reflects an utter need for modifications in underwater vehicles. Propellers generate an adequate amount of thrust to propel a vehicle at a certain velocity to ensure a reasonable propulsive efficiency with very less amount of energy losses and failures. The selecting features of a propeller focus on the variations in thrust, torque, and efficiency concerning velocity (Va), advance coefficient (J), and rate of revolution in open water. The operative ranges of marine propellers mostly depend on the open water characteristic estimate. The current research is cantered on analysing and designing a four-bladed marine propeller from the Wageningen B-series, specifically to ascertain its open water performance characteristics. Validation of the results attained from computational fluid dynamics (CFD) simulations has been conducted in comparison with previously available research findings. After that, the open water characteristics have been predicted computationally using ANSYS software where, the propeller revolution (N), the advanced coefficient (Va), and delivered power (PD) are known. Additionally, the open water features of a four-bladed propeller were calculated at various advanced velocities.