Question: Mini Project: Flight Dynamics & Control - A-4 Skyhawk II 312 NAVY K 9969 A-4 Skyhawk (A4D in old Navy designation) is a low-to-medium
Mini Project: Flight Dynamics & Control - A-4 Skyhawk II 312 NAVY K 9969 A-4 Skyhawk (A4D in old Navy designation) is a low-to-medium altitude attack aircraft focusing on bombing specific small target and straffing enemy assets. Due to its small size and subsonic speed, it was known as "The Bantam Bomber", "Heneimann's Hot Rod" or simply "The Scooter" by US Navy. However, A-4 was not only praised by its operators for its effectiveness during Vietnam War, Arab-Israeli Wars (1967 & 1973) and Malaysian Second Insurgency (1980-1989), it was also feared for its ability to deliver nuclear bomb during Cold War and destroying British ships during Falkland War. This assignemnt aims to revitalize A-4 Skyhawk to become future low-level attack platform. While maintaining its subsonic speed, the new A-4 Skyhawk shall have improved stability and agility. You are to form a group of five students, each with specific job to improve one of the five flight dynamic modes; 1. Phugoid 2. Shortperiod Oscillation 3. Roll 4. Dutch Roll 5. Spiral To achieve this the group must first search for important aerodynamics and flight dynamics coefficients of the original A-4 Skyhawk and analyze its longitudinal and lateral-directional dynamics. Using MIL- F-8785C as standard, the team must evaluate its flying quality level based on its aircraft classification and mission category. Based on the evaluated flying quality level of the five flight dynamic modes, suggest control laws to improve these modes to 1. Phugoid damping ratio = 0.7 & Level 1 2. Short period- damping ratio = 0.7, damped natural frequency = 0.5 hertz and Level 1 3. Roll-Level 1 4. Dutch Roll-damping ratio = 0.4 and Level 1 5. Spiral Dynamically Stable Each group must present their findings and submit their report. Marks are given based on; Project Results & Report Teamwork Report Presentation Total -18% - 6% - 6% -30% of total grade.
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