Select Product Concept(s)
The following section details the final concepts selected by the team from the list of generated concepts. The rationale used in selecting each of these concepts is also included.
Selection: Rectangular Wings
Rationale: Stable platform. Easy to analyze and design. No need for tapered or sweep back due to low speed of aircraft. Ornithopter out of the scope of customer needs.
Selection: Top mounted wing
Rationale: The high mounted wing creates a keel effect for the plane. This basically means that the low slung weight of the aircraft will automatically stabilize itself if perturbed in the lateral direction.
Keel Effect Diagram
Selection: Electric Motor
Rationale: To reduce weight. Gasoline is heavy and, as it was used up, would change the center of mass. Also servos and receiver can be run off same battery as motor.
Selection: Carbon/Kevlar Sock Weave
Rationale: Strength and weight considerations. Also wanted to protect the internal components from impacts, therefor a strong material was needed. Much lighter than foam coated with fiberglass.
Rationale: Most aerodynamic shape. Will lead to the most efficient flight with the least amount of drag.
Selection: Carbon Fiber with Carbon Fiber Ribs
Rationale: The four layer multi-angle ply allows for stress reduction in each direction needed, while the ribs prevent compression under air pressure and vibration during flight.