DEVELOPMENT AND TESTING OF DIGITAL FLY-BY-WIRE FLIGHT CONTROL SYSTEM FOR INDIAN LIGHT COMBAT AIRCRAFT

摘要

The Quadruplex Digital Fl), by Wire (DFBW) Flight control system for India's Light Combat Aircraft has been successfully developed by Aeronautical Development Establishment (ADE). The LCA FCS is a full authority Quadruplex DFBW flight control system with no back up. The system is built around DFCC containing four identical channels of computer. The DFCC LRU is based on Intel 80960 MC 32 Bit microprocessor. The processor outputs drive the actuators through Pulse Width Modulated ( PWM ) amplifiers for primary actuators of Direct Drive Valve (DDV) type. The Operational Flight Program (OFP) software executing in all the channels is identical and is configured as a single Computer Software Configuration Item (CSCI).