Choùkri Baziz Posted November 8, 2020 Share Posted November 8, 2020 Hi I have a question :so we have rudder hydraulic utility and boost press indicator but why we don't have elevator hydraulic press indicator? Quote Link to comment Share on other sites More sharing options...
hehe Posted November 9, 2020 Share Posted November 9, 2020 Because the rudder system has a high and low boost state activated by flap position. The Elevator is always system pressure (3000). Same reason aileron system does not have gauges, it is always one pressure range and does not change (short J models are the only exeption to this) Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted November 9, 2020 Share Posted November 9, 2020 38 minutes ago, hehe said: Because the rudder system has a high and low boost state activated by flap position. The Elevator is always system pressure (3000). Same reason aileron system does not have gauges, it is always one pressure range and does not change (short J models are the only exeption to this) As You know at high altitude of aircraft less pressure is require to move rudder ( reduce pressure 1275 to 1300 psi both system) Pilot must be monitored the both pressure through booster rudder and UTY indicators. for this purpose HYD rudder booster and Utility diverter panels are installed at above aft cargo door. System can be overridden (3000 Psi) by push button SW is mounted at same place and toggle guarded SW is mounted at flight pedestal at any time. Best Regards Munir Abbasi Home of Hercules Pakistan Quote Link to comment Share on other sites More sharing options...
Choùkri Baziz Posted November 10, 2020 Author Share Posted November 10, 2020 On 11/9/2020 at 1:27 AM, hehe said: Because the rudder system has a high and low boost state activated by flap position. The Elevator is always system pressure (3000). Same reason aileron system does not have gauges, it is always one pressure range and does not change (short J models are the only exeption to this) Short J models are an elevator hydraulic press indicator? Quote Link to comment Share on other sites More sharing options...
hehe Posted November 10, 2020 Share Posted November 10, 2020 4 hours ago, Choùkri Baziz said: Short J models are an elevator hydraulic press indicator? No. Short Js have high and low boost aileron Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted November 11, 2020 Share Posted November 11, 2020 7 hours ago, hehe said: No. Short Js have high and low boost aileron Excellent Best Regards Munir Abbasi Quote Link to comment Share on other sites More sharing options...
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