/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: AhmadUsman7 https://cdn.slidesharecdn.com/profile-photo-AhmadUsman7-48x48.jpg?cb=1623814903 Formulate conceptual design of aeronautical or aerospace products or systems to meet customer requirements. Direct and coordinate activities of engineering or technical personnel designing, fabricating, modifying, or testing of aircraft or aerospace products. Develop design criteria for aeronautical or aerospace products or systems, including testing methods, production costs, quality standards, and completion dates. Plan and conduct experimental, environmental, operational and stress tests on models and prototypes of aircraft and aerospace systems and equipment. Evaluate product data and design from inspections and reports for conformance to engineering principles, customer requireme...