1. BELIEVE

2. Lighter Than Air Vehicle Completed Design Review Team Two “Believe”

3. The Team  Mariel John  Victor Figueroa  Yonatan Tekleab  Nabori Santiago

4. Objective  Present our final LTA design  Explain changes we made  Provide detailed drawings

5. Final Design For our final design, we chose to arrange three balloons linearly and use a triangular truss structure.

6. Believe

7. Control Systems  Turning Capabilities –Differential Thrust  Two large motors positioned on the ends of a stable carbon fiber rod  Pitch –Elevator  A piece of wood with air from a small motor blowing over it  Wood is attached to servo and can be moved

8. Aerodynamic Analysis ObjectQuantity Mass (kg) Big Engines 20.4200 Small Engines 10.0897 Propellers 20.0159 Receivers 10.0270 Servos 10.0430 Battery pack 10.1480 Balloons 30.2100 Structural Framework --0.5020 Total Weight :14.27 N

9. Aerodynamic Analysis

10.  Required Lift is less than Maximum Lift

11. Design Evolution and Analysis  Then and Now… –From two balloons to three –New control systems –Great new name  Why change? –A closer look at possibilities –Familiarity with materials and process –Deeper thought about flying

12. I BELIEVE I CAN FLY!