Atr72 Study guides, Class notes & Summaries

Where is the Hydraulic Bay located? Failing behind Left Landing Gear. (Non-Pressurised) How are the Hydraulic pumps powered? ACW BUS 1 Blue Pump ACW BUS 2 Green Pump How is the auxiliary pump powered? Auto mode - DC BUS 2 Man mode - Hot Main Bat Bus * Man mode available Gnd and Flight. How many power accumulators are there? 3.. One for each system, in Hydraulic Bay What is the Nominal Hydraulic Pressure? 3000 PSI. What should the 3 Hydraulic pressure gauges in the Hydraulic Bay indicate?...

What does the AFCS achieve? (6)-Auto pitch trim -Rudder autotrim -Yaw damper -Turn coordination -Flight director -Altitude alert What engages when AP/YD PB are depressed once/twice?AP PB1: AP and YD engage / PB2: only AP disengage YD PB1: only YP engage / PB2: YD disengage What does SPD TGT AUTO/MAN SEL PB on Index Control Panel do?Switches between selected manual speed (MAN) and automatic speed (AUTO) managed by the FMS. What is the auto SPD TGT mode on A/C power up?Manual What does...

What does the AFCS achieve? (6)-Auto pitch trim -Rudder autotrim -Yaw damper -Turn coordination -Flight director -Altitude alert What engages when AP/YD PB are depressed once/twice?AP PB1: AP and YD engage / PB2: only AP disengage YD PB1: only YP engage / PB2: YD disengage What does SPD TGT AUTO/MAN SEL PB on Index Control Panel do?Switches between selected manual speed (MAN) and automatic speed (AUTO) managed by the FMS. What is the auto SPD TGT mode on A/C power up?Manual What does...

How is control achieved on the 3 axes?Using the Primary and Secondary flight controls. Which control surfaces have a spring tab associated?Aileron. Which control surfaces have servo tabs associated?Elevator(s). Which control surface has a spring tab associated?Rudder. How are the Ailerons, Elevators and Rudder actuated?Mechanically. How are the Spoilers and Flaps actuated?Hydraulically. How are the Ailerons and Elevators protected on the ground from wind gusts?Two electromechanical locks. ...

Standard Pax weights?Male 87kg Female 72kg Child 46kg Infant 16kg What is A/C pressurised to for landing?Ldg elev -300' Will increase to elev after touch down at +550fpm How is V(app) determined?V(mHB) + Wind factor OR V(mcl), whichever is higher Wind factor = 1/3HW OR Full gust How many channels can the 'Audio Ctrl Pal' have selected?One at a time What powers the RCAU?DC EMERG BUS (Remote Control Audio System) What powers VHF 1+2?VHF 1 --> DC EMERG