ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis 3 Balloons in straight line Maximum Lift Minimum Drag

ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis Vehicle Mass Estimate: = mass (thrust system) +mass (steering system)+…….+etc. = Kg

ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis Vehicle Drag Estimate: Assuming Drag is Dominated by balloon (Frontal Area)

ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis Assuming Maximum Velocity of 4.4 ft/s:

ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis System Placement: All batteries, receivers, & non-thrust producing equipment placed as close to Center of Gravity as possible, in order to maximize stability 4 AA batteries (112g), 1 rechargeable battery pack (105g) 2 Motors, placed as far apart as possible, located in the rear of vehicle, in order to maximize steering capabilities

ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis Method of Vehicle Control: One servo to adjust pitch of motors, control elevation (z) of vehicle One servo to adjust yaw of motors, control horizontal (x, y) direction of vehicle

ELEMENTS OF AEROSPACE ENGINEERING AND DESIGN ENME 489L Fall Aerodynamic Analysis Estimated Duration: From previous thrust & drag analysis: