Aircraft Model(s): PA-32-260 Cherokee Six 260. Applicable Engines: O-540-E4B5. 1 - 3-Bladed Propeller HC-C3YR-1RF/F7693F, 1 -STC Paperwork SA1105CH, 1 - Polished Spinner C-3535-1P. 78 inch diameter 3-bladed, aluminum hub propeller.