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Meridian – PA46-500TP Landing Gear Wright Aviation Services LLC Presents Piper Meridian Systems Training Program Landing Gear.

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Presentation on theme: "Meridian – PA46-500TP Landing Gear Wright Aviation Services LLC Presents Piper Meridian Systems Training Program Landing Gear."— Presentation transcript:

1 Meridian – PA46-500TP Landing Gear Wright Aviation Services LLC Presents Piper Meridian Systems Training Program Landing Gear

2 Meridian – PA46-500TP Landing Gear & Brakes Landing Gear  Tricycle gear  Retractable  Electrically activated  Hydraulically actuated  Warning systems  Throttle position  Flap position  Squat switch  Annunciator panel  Gear Position Lights Braking  Brake System  Disc Type  Manually activated  Hydraulically actuated  Reverse Thrust  Pilot operated  Ground use only  MLG squat switch

3 Meridian – PA46-500TP Landing Gear Tricycle gear Tricycle gear Retractable Retractable Electrically activated Electrically activated Hydraulically actuated Hydraulically actuated Warning systems Warning systems – Throttle position – Flap position – Squat switch – Annunciator panel – Gear Position Lights

4 Meridian – PA46-500TP Landing Gear Main Landing Gear (MLG) Actuator Actuator Rod End Rod End Trunnion Trunnion Piston Piston Torque Link Torque Link Yoke Yoke Brake Assembly Brake Assembly Brake Line Brake Line Wheel Well Door Wheel Well Door Door Rod Door Rod Squat Switch – Left MLG Squat Switch – Left MLG

5 Meridian – PA46-500TP Landing Gear Nose Landing Gear (NLG) Extends forward Extends forward Retracts aft Retracts aft NLG Steering via Rudder Pedals NLG Steering via Rudder Pedals Turn limits for towing Turn limits for towing NLG Pressure 70 psi NLG Pressure 70 psi NLG Rake 90 degrees NLG Rake 90 degrees Landing Light Landing Light

6 Meridian – PA46-500TP Landing Gear Nose Landing Gear (NLG) Actuator Actuator Trunnion Trunnion Torque Link Torque Link Piston Piston Yoke Yoke Steering Assembly Steering Assembly Steering Arm Steering Arm Steering Bungee Assembly Steering Bungee Assembly Steering Bellcrank Steering Bellcrank Steering rods Steering rods Steering Assy Bellows Steering Assy Bellows Turn limits for towing Turn limits for towing

7 Meridian – PA46-500TP Landing Gear Gear Indications 3 Green 3 Green – Each gear down and locked Annunciator Light Annunciator Light – Gear in transit Not down, locked Not down, locked Not up, stowed Not up, stowed – Goes out when: All 3 gear All 3 gear – Up and stowed – Down and locked Warning System Warning System – Power selection – Flap configuration – Gear position

8 Meridian – PA46-500TP Landing Gear Warning System Horn – cockpit, not headset Horn – cockpit, not headset Caution Light on Panel Caution Light on Panel Master Caution on Panel Master Caution on Panel The warning system will activate whenever power and/or flap are set to a “landing” configuration but the gear is not down and locked. – Power reduction below approx 250 lbs torque – Flap selection greater than 10 degrees (first notch)

9 Meridian – PA46-500TP Landing Gear  The landing gear system is electrically activated, hydraulically actuated.  Gear is held up by hydraulic pressure and down by spring loaded over- center locks within the actuators.  Hydraulic actuators move the gear up and down.  Once down and locked, hydraulic pressure is required to move the down-locks within the actuators, enabling the gear to be retracted.  When retracted, hydraulic pressure keeps the gear in the retracted position. The absent hydraulic pressure, gear will extend through gravity.

10 Meridian Landing Gear Extend

11 Meridian – PA46-500TP Landing Gear Extend

12 Meridian Landing Gear Retract

13 Meridian – PA46-500TP Landing Gear Retract

14 Meridian – PA46-500TP Landing Gear Landing Gear Operation:  Retraction:129 KIAS  Extension:168 KIAS Emergency Extension:  Slow to 100 KIAS  Pull Hydraulic Pump CB  Select Gear Down  Pull Emergency Extension Knob OUT

15 Meridian – PA46-500TP Landing Gear Summary & Review  Tricycle Landing gear  Electrically Activated, Hydraulically Actuated up and down  Warning system consist of:  Three independent down & locked lights  In transit annunciator light on unless all 3 gear either up stowed or down & locked  Positive nose gear steering through rudder pedals  Land on mains, hold NLG off and center pedals before NLG touch down.  Loss of hydraulic pressure, gear will “free fall” into position  Slow to 100 KIAS to reduce airflow over gear during emergency extension  NLG extends forward while mains extend outward from center line  Tire pressure and NLG “rake” critical to ground handling  Mains 50 psi  Nose 70 psi

16 Meridian – PA46-500TP Landing Gear Presented by Wright Aviation Services LLC Scottsdale/Phoenix AZ Copyright 2010/2011 – Wright Aviation Services All rights reserved Website: Phone: Meridian Landing Gear Presentation By Wright Aviation THE END


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