Team 5 Vehicle Propulsion QDR 2 Presented By: Maria Mullins James Roesch

2 AAE 451 – Team 5 February 22, 2005 Aircraft Characteristics Weight – 0.84 lbs Flight Speed – 30 ft/s

3 AAE 451 – Team 5 February 22, 2005 Aircraft Operating Conditions

4 AAE 451 – Team 5 February 22, 2005 Method Prop ’02 code  Integrated gold.m  Pitch / Diameter iterations Motor Database  Motors selected from MotoCalc No Brushless Heavy Weight Eliminated

5 AAE 451 – Team 5 February 22, 2005 Propeller Selection Propeller Diameter9 in Pitch6 in Operating RPM3512 RPM MaterialCarbon Fiber Efficiency0.76 Cost$4.39

6 AAE 451 – Team 5 February 22, 2005 Propeller stuff J = 0.69 C P = C T = η = 0.76

7 AAE 451 – Team 5 February 22, 2005 Motor Selection - Graupner Speed 280 6V Characteristics Propeller Shaft Diameter in Engine Diameter0.95 in Engine Length1.25 in Weight1.44 oz Cost$10.90

8 AAE 451 – Team 5 February 22, 2005 Motor Performance Input Voltage7.12 Volts Input Current1.08 Amp Output Power4.96 Watts Free RPM14397 RPM Motor Efficiency0.65

9 AAE 451 – Team 5 February 22, 2005 Motor Operating Conditions

10 AAE 451 – Team 5 February 22, 2005 Gear Box Selection – Great Planes Electrifly Gearbox Weight0.53 oz Gear Ratio4.1:1 Length1.5 in Height1.4 in Outer Diameter1.2 in Shaft Length0.3 in Shaft Diameter0.12 in Cost$11.99

11 AAE 451 – Team 5 February 22, 2005 Speed Controller Selection JETI 30 Amp Microprocessor Motor Controller  For NiCd 6 to 12 cell batteries  $44.90  Weight = 1 oz.

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