From that Cessna-150's data, it used Continental 0-200-A 100 HP (75 kW) at 2,750 RPM and with Fixed Pitch propeller with its diameter=69 inches. If power is delivered maximum to the propeller (through direct shaft), then what is power of the propeller to push (thrust) the airplane?
Engine (100HP) ==> Propeller ==> Thrust (? %)
Additional Data of Cessna-150: Weight of loaded: 680 kgs. Weight of Empty: 437 kgs. Wing loading: 9.4 psf (45.8 kg/m²) Power loading: 15 lb/hp (6.81 kg/hp) Maximum Engine Power: 100HP (75kW). Wing Span: 10.2 m.
more detail about the plane can be seen here: http://www.skytamer.com/Cessna_150C.html