Design Verification and Engine Test of an Advanced Fuel Management System for Aircraft Gas Turbine Engines

This paper describes the work conducted at Pratt & Whitney under the Navy sponsored Advanced Fuel Management (AFM) program. This program undertook the design, development and test of a gas turbine engine control system suitable for installation on the next generation military fighter aircraft. Major features of this control system are a fully redundant system structure; dual electronic controls eliminating all hydromechanical logic elements; redundant direct drive servovalves operating on clean, high pressure, airframe integrated hydraulics supplying all actuation muscle; and redundant high reliability centrifugal fuel pumps. The program, begun in December 1981, was brought to a successful conclusion this summer with the test of the complete control system on a Joint Technology Demonstrator Engine (JTDE).