The U.S. Navy has completed an engine control and cockpit upgrade program for its fleet of Lockheed Martin C-130T transports. According to the Navy, the last of the C-130T Electronic Propeller Control System and Engine Instrument Display System (EPCS/EIDS) installations was completed this past spring, “at cost and ahead of schedule.” All of the Navy’s twenty C-130Ts and sixteen KC-130Ts flow by the U.S. Marine Corps. have been put through the EPCS/EIDS effort.

The EPCS upgrade replaced mechanical propeller control system components, reducing maintenance time and increasing the time on-wing of the four turboprop engines. The work involved replacing a propeller control housing and synchrophaser system, while maintaining the legacy four-bladed propeller rotating assembly. Other components included in the EPCS installation were an electronic valve housing, electronic prop control, annunciator panel, modified mechanical pump housing, and a propeller maintenance panel (PMP). Under the EIDS portion of the upgrade, forty-three obsolescent analogue cockpit gauges were replaced with two flat panel displays.

EPCS/EIDS follows an earlier initial cockpit upgrade process, conducted on nineteen of the Navy’s C-130Ts, that was completed in September 2013. That work involved equipping the aircraft with a Garmin GNS 480 GPS system, an electronic flight bag, electronic horizontal situation indicator, and engine instrument display.