1. Propulsion QDR 2 AAE 451 Fall 2006 Team 4 Tung TranMark Koch Matt Drodofsky Matt Lossmann Ravi PatelKi-bom Kim Haris Md IshakAndrew Martin

2. Overview Geometric Propeller properties Geometric Propeller properties Motor Selection Motor Selection Power Supplies Power Supplies Cost Breakdown Cost Breakdown

3. Propeller Geometries Chose a P/D of 0.8. This yields an advance ratio of 0.9713

4. Propeller Properties τ =.8 τ =.8 V = 129.3 ft/s V = 129.3 ft/s J =.9713 J =.9713 β = 57.85º β = 57.85º Where: Tau = P/D R = propeller radius

5. Motor Selection Rimfire Brushless Outrunner 42 – 60-800 11.1V – 18.5V 60 Amps Continuous Current Weight – 9.5 oz. K v – 800 RPM/V Power – 1.48hp Price - $79.99

6. Battery Selection A123 Racing Lithium Ion batteries 5 cells 70A continuous discharge 2300mAh per cell 3.7 V per cell 70 grams per cell Cost - $60.00

7. Horsepower Calc

8. Speed Controller Castle Creations Phoenix-80 Brushless Motor Control 80A continuous power BEC of 3A Price - $135.99

9. Cost Estimation Motor - $79.99 Motor - $79.99 Speed Controller - $135.99 Speed Controller - $135.99 Batteries – $60.00 Batteries – $60.00 Propeller - $2.49 Propeller - $2.49 Total with Speed Controller – $278.47 Total with Speed Controller – $278.47 Total without Speed Controller – $142.48 Total without Speed Controller – $142.48

10. Questions?