1. AAE 451 – Fall 2003 Ares Team Mir Rashiduzzaman Alethea Tan Kai-Hui Leong Darwin Lisan Jung Hyun Ahn John Ko

2. Outline Introduction Introduction Conceptual Design Conceptual Design - Structures - Structures - Power-Plant - Power-Plant - Avionics - Avionics Strengths Strengths Potential Challenges Potential Challenges

3. Main Goals To meet the mission constraints To meet the mission constraints To satisfy customers’ needs To satisfy customers’ needs To keep cost down To keep cost down To increase performance To increase performance

4. Conceptual Design

5. Structures Main frame – square chamfered fuselage with tapered wing attached Main frame – square chamfered fuselage with tapered wing attached Wing installed on the top of the fuselage Wing installed on the top of the fuselage Tail connected to the wing via two horizontal tail booms Tail connected to the wing via two horizontal tail booms Two vertical rudders attached to the elevator attachment Two vertical rudders attached to the elevator attachment

6. Structures Pod and Air-data boom situated in the front of the aircraft Pod and Air-data boom situated in the front of the aircraft Tricycle landing gear Tricycle landing gear

7. Power-Plant Pusher type internal combustion engine Pusher type internal combustion engine Fuel tank placed on the C.G of the aircraft Fuel tank placed on the C.G of the aircraft Situated at the end of the fuselage, behind the wing Situated at the end of the fuselage, behind the wing

8. Avionics Avionics pod located in the front of the aircraft Avionics pod located in the front of the aircraft Seven servos Seven servos - Three on the tail for elevator and rudders - Three on the tail for elevator and rudders - Two on the aft fuselage section for ailerons - Two on the aft fuselage section for ailerons - Two on the fuselage for engine throttle and nose gear - Two on the fuselage for engine throttle and nose gear

9. Strengths Simpler Design – low manufacturing cost Simpler Design – low manufacturing cost Thicker Airfoil – increase wing stiffness, increase favorable pressure gradient giving better performance at high AOA Thicker Airfoil – increase wing stiffness, increase favorable pressure gradient giving better performance at high AOA Tapered wing – reduce wing weight, better stalling characteristics Tapered wing – reduce wing weight, better stalling characteristics Location of wing, pod and air-data boom Location of wing, pod and air-data boom High landing gear High landing gear

10. Potential Challenges Tapered wing – harder to manufacture Tapered wing – harder to manufacture Torsional stresses on tail booms Torsional stresses on tail booms Hybrid Structure, joint interface Hybrid Structure, joint interface Composites – labor intensive Composites – labor intensive

11. Questions? Constructive feedback, por favor! Constructive feedback, por favor!