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Juggernaut

Team 3 Completed Design Review. Juggernaut. Becca Arvanites: Structural Design Mark Egan: Structural Analysis & Stability Karl Kulling: RC Operator/communications & Propulsion Chris Savage: Stability & Structural Design Dawn Wheeler: Propulsion & RC Communications.

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Juggernaut

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  1. Team 3 Completed Design Review Juggernaut Becca Arvanites: Structural Design Mark Egan: Structural Analysis & Stability Karl Kulling: RC Operator/communications & Propulsion Chris Savage: Stability & Structural Design Dawn Wheeler: Propulsion & RC Communications

  2. Why a Four-Balloon Diamond Design? • Benefits: • Advantageous payload • Stability in all directions • Vectored Thrust

  3. Control Systems • Vectored Thrust: one servo controls pitch of motors, another servo controls yaw of motors • RC control (human factors)

  4. Aerodynamic Analysis • Maximum Thrust (from table): 1.4N total from 2 large motors • Mass: 1.2-1.4kg • Maximum Acceleration = Thrust/Mass = .9-1m/s2 • Terminal Velocity = 1-1.2 m/s • Time Estimate: 90-130 seconds

  5. Design Evolution • Reshaping control assembly to allow room for propellers to turn • Motors mounted under control assembly instead of on top • Extra bracing required on control assembly • Psychological evolution: new improved team name! <-- motor mount prototype

  6. Conclusions • Designed for stability and payload rather than aerodynamics/speed • Building left: attach motor mount to fuselage, balloon attachment net • Testing: controls response, practice using rc controller

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