This paper proposed a method to update the on-line health reference baseline of the On-Board Engine Model (OBEM) to maintain the effectiveness of an in-flight aircraft sensor Fault Detection and Isolation (FDI) system, in which a Hybrid Kalman Filter (HKF) was incorporated. Generated from a rapid in-flight engine degradation, a large health condition mismatch between the engine and the OBEM can...

Presented herein is a comparative performance analysis of novel turbofan engine with an auxiliary combustion chamber, nicknamed the TurboAux engine, against turbojet and low bypass ratio afterburner presented. The adaption low-bypass but secondary in annular chamber for thrust augmentation. envisioned desire to facilitate clean burning fuel at temperatures higher than main air exiting low-press...

The turbojet engine operates on the ideal Brayton cycle (gas turbine) and consists of six main parts: diffusers, compressors, combustion chambers, turbines, afterburners nozzles. Using computer code writing in MATLAB software environment, exergy analysis all selected components, J85-GE-21 for selective height 1000-8000 meters above sea level at speeds 200 m/s temperatures 10°C, 20°C 40°C have b...

Laser-based missile-defence systems are being increasingly employed on aircraft to provide protection when attacked by optically-guided weapons. In some engagements the laser beam must pass through the exhaust gases of the aircraft. To predict the increase in laser beam divergence and jitter of the laser beam direction, an understanding of the exhaust gas structure and its influence is required...