Aircraft Model(s): PA-28-236 Dakota. Applicable Engines: O-540-J3A5D. 1 - STC Document Set SA01191LA, 1 - 3-Bladed Propeller HC-F3YR-1ARF/F7693F, 1 - Polished Spinner C-3570-1P. 78 inch diameter 3-bladed, scimitar, extended, aluminum hub propeller.