Aircraft Model(s): 58 Baron. Applicable Engines: IO-520-C, IO-520-CB. 1 - STC Paperwork SA773CE, 2 - 3-Bladed Propellers PHC-J3YF-2UF/FC7663-2R, 2 - Polished Spinners C-3567-1P. 76 inch diameter 3-bladed, extended, aluminum hub propellers.