statira Posted July 13, 2013 Share Posted July 13, 2013 Hi Can someone tell me that, how change engine (T56-A-9) components with different flight conditions? Is the angle of compressor blades or nozzle geometry changed? Thanks Quote Link to comment Share on other sites More sharing options...
JTECH Posted July 15, 2013 Share Posted July 15, 2013 I am not sure I understand your question? Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted July 15, 2013 Share Posted July 15, 2013 It sounds like you want to know how the engine prop work... The Prop changes blade angle to absorb excess power from the engine, the RPM stays at 100% due to the prop blade angle change... Moving the throttle up increases fuel flow to engine and it and the prop speed up, the prop is designed to stay at 100% so it increases blade angle to reduce the speed which results in an increase in torque. All engine components are fixed no moving (variable) blades... Quote Link to comment Share on other sites More sharing options...
statira Posted July 15, 2013 Author Share Posted July 15, 2013 It sounds like you want to know how the engine prop work... The Prop changes blade angle to absorb excess power from the engine, the RPM stays at 100% due to the prop blade angle change... Moving the throttle up increases fuel flow to engine and it and the prop speed up, the prop is designed to stay at 100% so it increases blade angle to reduce the speed which results in an increase in torque. All engine components are fixed no moving (variable) blades... Thanks so much! I mean , when blade angles is changed and what extend? Did change the angle of the exhaust gas? if yes when? So, I realized your words that engine components(such as, prop blade or nozzle geometry or etc.) never have changed. :confused: best regards statira Quote Link to comment Share on other sites More sharing options...
JTECH Posted July 16, 2013 Share Posted July 16, 2013 What he is saying is the propeller changes angle to create thrust for the airframe, but inside the power section there are no variable parts. the compressor blades are fixed and the turbine blades are fixed as well as all the stators, nothing is variable, however during initial start up there are bleed pucks that are open to take air and pressure out of the compressor and then they are closed with bleed air pressure increase as the engine comes up to speed. Engine power measured in torque is increased and decreased by fuel fed to the engine and burned in the combustion section. Quote Link to comment Share on other sites More sharing options...
statira Posted July 20, 2013 Author Share Posted July 20, 2013 What he is saying is the propeller changes angle to create thrust for the airframe, but inside the power section there are no variable parts. the compressor blades are fixed and the turbine blades are fixed as well as all the stators, nothing is variable, however during initial start up there are bleed pucks that are open to take air and pressure out of the compressor and then they are closed with bleed air pressure increase as the engine comes up to speed. Engine power measured in torque is increased and decreased by fuel fed to the engine and burned in the combustion section. thanks for your answer I totally understand now :) Quote Link to comment Share on other sites More sharing options...
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