The main purpose of publishing the journal of "Safety and Airworthiness" is to publish fundamental researches, new ideas, new scientific and experimental achievements in various fields of safety, initial airworthiness, and continuing airworthiness in the form of scientific-research articles. Therefore, all professors, students, researchers and aviation industry employees are invited to send their research results to this journal for publication. The policy of the journal of "Safety and Airworthiness " is to determine the fate of articles in the shortest possible time.