2. PURPOSE
• Safely dirext exhaust gases to atmosphere
• To produce required thrust
• Gas must be expanded completely and
discharge in laminar and axially oriented flow
• Material from nickel alloys or titanium subject
to high gas temperature.
7. NOISE SUPPRESSION
• Noise result :
– From rolling vortex produce by rotating blades
interacting with stationary vane
– From mixing of jet efflux with cold ambient air
• Method :
• Using honeycomb for intake and casing
• Using Suppressor nozzle (lobe and corrugation)
9. THRUST REVERSAL
• Control by lever mounted forward of
thrrottles
• It rotate the airflow and directed airflow 450
• Purpose :
– Aid in braking
– Aid in directional control
– Reverse aircraft out of parking