Muhammad Rayyan Khan, Muhammad Yousef and Nasir Javed2025-10-052025-10-052020https://escholar.umt.edu.pk/handle/123456789/8004In the modern-day world, WT technology have been emerging and succeeding in its acceptance and convenience as different types of WTs are developed now to produce different speeds. This report is based on the construction and working of an OC low-cost subsonic WT to produce about 0.3 Mach. It consists of different sections in which a contraction cone, test section, and diffuser are the main sections. The length of the WT is 2.7m. Information that is gained from the wind tunnel through the measuring gadgets like anemometer can be used to improve the design of objects affected by the controlled airflow. Besides the aircraft, this technology is also used in automobiles. Keywords --- Wind tunnel, subsonic flow, contraction cone, test section, diffuser.enThesis