Investigation of a Three-blade Propeller in Combination with Two

Schaumburg Regional Airport , 847-895-0315 372 CITY OF CHICAGO PUBLIC TRANSPORTATION • CTA , 888 USEFUL PHONE NUMBERS AND WEB SITES

CTa 888 16 12 20 20 GP Apparent power coefficient , Cpa O Mt DIN 180 O D 30 4 B Tip Mach number , M1 CPa 22 6 8 Apparent efficiency , a 36

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cta888 CTa 888 16 12 20 20 GP Apparent power coefficient , Cpa O Mt DIN 180 O D 30 4 B Tip Mach number , M1 CPa 22 6 8 Apparent efficiency , a 36