Abstract: A gas turbine engine comprises, in axial flow sequence, a fan assembly, a compressor module, a turbine module, and an exhaust module. The gas turbine engine comprises first and second engine mount planes. The first and second engine mount planes are configured to support gas turbine engine in machine body. The gas turbine engine has axial length L, with axial length extending from inlet face of engine to exhaust face of engine. The first engine mount plane is positioned axially along gas turbine engine at first engine mount plane position, with first engine mount plane position within a range of between 0.24*L to 0.32*L from the inlet face of the engine. The second engine mount plane is positioned axially along gas turbine engine at second engine mount plane position, with second engine mount plane position within a range of between 0.73*L to 0.79*L from the inlet face of the engine.

Abstract: According to the present disclosure, a fuel supply system having a recirculation loop is provided. The fuel supply system comprises a fuel tank; a return line coupled fluidly to the fuel tank; a fuel manifold; and a recirculation loop, wherein the return line is coupled fluidly to the recirculation loop at a first node to return fuel from the recirculation loop to the fuel tank, and the recirculation loop comprises a heat exchanger positioned downstream of the fuel manifold and upstream of the first node. The recirculation loop may comprise an orifice positioned upstream of the heat exchanger and downstream of the fuel manifold. Additionally, the fuel supply system may further comprise a supply line coupled fluidly to the fuel tank and further coupled fluidly to the recirculation loop at a second node positioned upstream of the fuel manifold and downstream of the first node.

Abstract: According to the present disclosure, a fuel supply system having a recirculation loop is provided. The fuel supply system comprises a fuel tank; a return line coupled fluidly to the fuel tank; a fuel manifold; and a recirculation loop, wherein the return line is coupled fluidly to the recirculation loop at a first node to return fuel from the recirculation loop to the fuel tank, and the recirculation loop comprises a heat exchanger positioned downstream of the fuel manifold and upstream of the first node. The recirculation loop may comprise an orifice positioned upstream of the heat exchanger and downstream of the fuel manifold. Additionally, the fuel supply system may further comprise a supply line coupled fluidly to the fuel tank and further coupled fluidly to the recirculation loop at a second node positioned upstream of the fuel manifold and downstream of the first node.

Abstract: A direction finding apparatus for detecting and locating transmitters of direct sequence spread spectrum signals has two antenna spaced apart horizontally which are connected to a tuner that is under the control of a microcomputer. The tuner bandpass filters signals in separate channels for each antenna, amplifies and converts those signals to an intermediate frequency. That intermediate frequency signal in each channel is applied to a nonlinear device to produce discrete spectral components which are applied to a bandpass filter in order to isolate a discrete spectral component in one channel and a similar component in the other channel. Each selected discrete spectral component is then digitized in A/D converters and applied to the microcomputer which determines the frequency of the spectral component and the phase difference between channels.

Abstract: A fuel injection nozzle for supplying fuel to an internal combustion engine includes a valve member which at one end is of reduced diameter and mounts a spring abutment and at its other end is engageable with a seating to prevent flow of fuel from an inlet to an outlet. The valve member is slidable in a sleeve which is also slidable in a nozzle body secured to a holder. A spring is located in a chamber in the holder and the reduced diameter portion of the valve member extends into the chamber. A tubular push piece surrounds the reduced diameter portion to transmit the force developed on the sleeve by the fuel pressure, to the spring abutment. The movement of the sleeve is limited by the engagement of a flange on the push piece with the end face of the holder and the movement of the valve member is limited by the engagement of a step defined on the valve member with the end of the push piece.