Click to Add Title CDR: Spring, 2004

The Team Alex Coso Fred Gay Dan Cunningham Val Lugo

Final Design Drawing courtesy of Dan Cunningham

Final Design Drawings courtesy of Dan Cunningham

Final Design Drawings courtesy of Dan Cunningham

Final Design Drawings courtesy of Dan Cunningham

Scale Drawings Drawings courtesy of Dan Cunningham

Scale Drawings Drawings courtesy of Dan Cunningham

Scale Drawings Drawings courtesy of Dan Cunningham

Structural Analysis  Structure:65g x 1 = 65g  Motors:93g x 2 = 186g  Motors: 269g x 1 = 269g  Propellers: 5.2g x 3 = 15.6g  Servos:43g x 3 = 129g  Radio Gear:46g x 1 = 46g  Batteries: 260g x 1 = 260g  Total Mass: approx g  Payload: approx g  Dimensions: Length: 2m Width: 1.25m Height: 1.5m

Aerodynamic Analysis  Helium Required: Lift=ΔρVg=17.15N Assuming two balloons, their radius must be.53m to generate the necessary lift Thrust must be equal to drag in steady flight Thrust = Drag = 2.64N v 2 =2D/ρSC D v=1.5m/s Total course time estimate: 60 to 70 sec.

Control Analysis  Yaw control is provided by two oppositely facing, fore and aft mounted small motors  Pitch control is provided by the third, main drive motor, which pivots about a horizontal axis  Control surfaces will be added if we deem them necessary after initial flight testing