A variable pitch propeller assembly for an engine defining an axial direction, a radial direction, and a circumferential direction, the variable pitch propeller assembly comprising: a plurality of propeller blades rotatable about the axial direction and spaced apart along the circumferential direction, each propeller blade rotatable through a plurality of blade angles about respective pitch axes each extending in the radial direction; a pitch actuation assembly for adjusting the plurality of propeller blades through the plurality of blade angles; a pitch control unit, comprising: a primary control valve operable to selectively allow a flow of hydraulic fluid to or from the pitch actuation assembly; a secondary control valve adjustable between a constant speed mode, a feather mode, and a reverse mode and operable to selectively allow a flow of hydraulic fluid to or from the pitch actuation assembly based at least in part on the mode of the secondary control valve; wherein the secondary control valve is a spool-type directional electrohydraulic servovalve and the secondary control valve comprises a first stage and a second stage; and wherein the primary control valve is connected to the secondary control valve via a control conduit, and wherein the control conduit is split into a first control conduit and a second control conduit feeding different ports of the second stage of the secondary control valve. a plurality of propeller blades rotatable about the axial direction and spaced apart along the circumferential direction, each propeller blade rotatable through a plurality of blade angles about respective pitch axes each extending in the radial direction; a pitch actuation assembly for adjusting the plurality of propeller blades through the plurality of blade angles; a pitch control unit, comprising: a primary control valve operable to selectively allow a flow of hydraulic fluid to or from the pitch actuation assembly; a secondary control valve adjustable between a constant speed mode, a feather mode, and a reverse mode and operable to selectively allow a flow of hydraulic fluid to or from the pitch actuation assembly based at least in part on the mode of the secondary control valve; wherein the secondary control valve is a spool-type directional electrohydraulic servovalve and the secondary control valve comprises a first stage and a second stage; and wherein the primary control valve is connected to the secondary control valve via a control conduit, and wherein the control conduit is split into a first control conduit and a second control conduit feeding different ports of the second stage of the secondary control valve. a primary control valve operable to selectively allow a flow of hydraulic fluid to or from the pitch actuation assembly; a secondary control valve adjustable between a constant speed mode, a feather mode, and a reverse mode and operable to selectively allow a flow of hydraulic fluid to or from the pitch actuation assembly based at least in part on the mode of the secondary control valve; wherein the secondary control valve is a spool-type directional electrohydraulic servovalve and the secondary control valve comprises a first stage and a second stage; and wherein the primary control valve is connected to the secondary control valve via a control conduit, and wherein the control conduit is split into a first control conduit and a second control conduit feeding different ports of the second stage of the secondary control valve.