A 3-view drawing of the P.512 illustrating the engine installation and revised undercarriage After World War II, S.A.I.-Ambrosini modified at least one AL-12P to be powered by 2x 225 horsepower Alfa Romeo 115ter six-cylinder air-cooled engines and fitted with a revised undercarriage with shock absorber struts attached to the engine nacelles braced by V-struts from the fuselage sides.