Propulsion 2 QDR AAE 451: Team 2 Michael Caldwell Jeff Haddin Asif Hossain James Kobyra John McKinnis Kathleen Mondino Andrew Rodenbeck Jason Tang Joe Taylor Tyler Wilhelm February 22, 2005

Overview 3-View Drawing Thrust Required Power & Endurance Required Motor & Battery Selection Propeller Selection February 22, 2005

Aircraft 3-View Mission Requirements 15 min. endurance Take-off distance ≤ 60 ft. Vstall ≤ 15 ft./s Vloiter ≤ 25 ft./s 35 ft. turn radius February 22, 2005

Thrust Required February 22, 2005

Power & Endurance Required February 22, 2005

Motor & Battery Selection Brushed Brushless February 22, 2005

Thrust and Advance Ratio February 22, 2005

Power and Advance Ratio February 22, 2005

Propeller Efficiency and Advance Ratio February 22, 2005

Choice of Motors (RPM) February 22, 2005

Propeller Selection Brushless motor propeller Brushed motor propeller 7 in. diameter 3.57 in. pitch 74% efficiency Brushed motor propeller 8 in. diameter 4.59 in. pitch 76% efficiency February 22, 2005

Questions? Summary Motor & Battery Selection Propeller Sizing 3 Bladed Props? Questions? February 22, 2005