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245 Cards in this Set
- Front
- Back
(POH) 3 Land Immediately
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1) Land On The Nearest Clear Area 2) Where A Safe Normal Landing Can Be Performed 3) Be Prepared To Auto
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(POH) 2 Land As Soon As Practical
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1 - Land @ The Nearest Airport Or Facility 2 - Where Emergency Maintainence Can Be Performed
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(POH) 2 Power Failure General May Be Caused By
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1 - Engine Failure or 2 - Drive System Failure
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(POH) 4 Engine Failure Symptoms
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1 - Left Nose Yaw 2 - Change In Noise Level 3 - Oil Pressure Light 4 - Decreasing Engine RPM
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(POH) 4 Drive System Failure Symptoms
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1 - Unusual Noise 2 - Unusual Vibration 3 - Right/Left Nose Yaw 4 - Low Rotor RPM while High Engine RPM (Wined Up) at same time
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It is acceptable to allow your airspeed to go below 30 knots if
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Your rate of sink is below 300 FPM (feet per minute)
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To avoid hitting unmarked wires your altitude must be
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Above 500 feet AGL
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The number one cause of fatal accidents in the R-22 is
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Collision with wires and other objects
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autorotation definition
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a descending maneuver where the engine is disengaged from the main rotor system and the rotor blades are driven solely by the upward flow of air through the rotor
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freewheeling unit disengages anytime the
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engine r.p.m. is less than the rotor r.p.m
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3 desired settings before an autorotation
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1 - 700ft head into the wind 2 - 70 KIAS 3 - below 110 RPMS
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6 starting an autorotation steps
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1 - lower collective 2 - aft cyclic 3 - right pedal 4 - roll throttle off 5 - raise collective a little 6 - maintain 60 to 65 KIAS
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4 ending an autorotation steps
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1 - enter flare at 40 ft with 60 KIAS and 104-105% RPM 2 - roll on throttle 3 - push cyclic at 8 to 15 ft AGL 4 - raise collective
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autorotation (airspeed good/RPM good)
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cyclic/maintain and collective/maintain
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autorotation (airspeed fast/RPM good)
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cyclic/pull back and collective/raise
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autorotation (airspeed slow/RPM good)
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cyclic/push forward and collective/lower
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autorotation (airspeed good/RPM low)
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cyclic/same and collective/raise
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autorotation (airspeed good/RPM high)
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cyclic/same and collective/raise
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autorotation (airspeed fast/RPM low)
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cyclic/back and collective/same
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autorotation (airspeed slow/RPM low)
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roll on the throttle!!!
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Rate of descent is high at __ airspeed and decreases to a minimum at approximately __ __ __ knots
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zero/50 to 60
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When making turns during an autorotation generally use __ control only
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cyclic
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the use of __ __ to assist or speed the turn causes loss of airspeed and downward pitching of the nose
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anti-torque pedals
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If rotor r.p.m. builds too high during an autorotation __ __ __ sufficiently to decrease r.p.m. back to the normal operating range
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raise the collective
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If the r.p.m. begins decreasing you have to again
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lower the collective
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Aft cyclic movements cause
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an increase in rotor r.p.m.
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rotor r.p.m. increases during a turn due to the
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increased back cyclic control pressure-which induces a greater airflow through the rotor system
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The tighter the turn and the heavier the gross weight
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the higher the r.p.m.
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Low Rotor RPM
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- Anytime The Rotor RPM Is Below
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8 Power Failure @ 500 ft AGL Procedures
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1 - Immediate Down Collective 2 - Maintain Rotor RPM 3 - enter auto 4 - Establish A Steady Glide/About 65 KIAS 5 - Adjust Collective/Keep Rotor RPM In Green Arch 6 - Choose A Landing Area/Maneuver Into Wind If Alt Permits 7 - Restart or No Restart 8 - Raise Collective Just Before Impact/To Cushion Landing (Touchdown In Level Attitude)
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5 Restart Procedure after power failure ABOVE 500 FEET AGL
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1 - Mixture Full Rich 2 - Primer Down/Locked 3 - Throttle Closed 4 - Then Slightly Cracked 5 - Actuate Starter w/ Left Hand
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2 No Restart procedure after power failure ABOVE 500 FEET AGL
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1 - Turn Off All Unnecessary Switches 2 - Shut Off Fuel
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2 Landing @ 40' AGL after Power Failure @ 500 ft AGL
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1 - Start Cyclic Flare 2 - To Reduce ROD (rate of descent) & forward Airspeed
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2 Landing @ 8' AGL after Power Failure @ 500 ft AGL
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1 - apply foward Cyclic To Level Ship 2 - raise collective
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if power failure occurs at night @ 500 ft AGL-do not turn on __ __ above 1000 ft AGL to preserve battery power
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landing lights
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7 Power Failure Between 8' & 500' AGL
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1 - Takeoff Should Be Conducted-Per Height/Velocity Diagram 2 - Immediate Down Collective-Maintain Rotor RPM 3 - Adjust Collective-Keep Rotor RPM In Green Arch 4 - Maintain Airspeed Until Ground Approaches 5. As Ground Approaches-Start Cyclic Flare To Reduce ROD (Rate of Descent) & forward Airspeed 6. @ 8' AGL-foward Cyclic To Level Ship 7. Raise Collective Just Before Impact
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3 Power Failure Below 8' AGL
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1. Immediate Right Pedal-To Prevent Yaw 2. Allow Aircraft To Settle 3. Raise Collective Just Before Impact
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3 Max Glide Configuration
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1 - 90% Rotor RPM 2 - 75 KIAS 3 - one nautical mile per 1500 feet AGL
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4 Ditching Power Off POWER FAILURE OVER WATER
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1 Follow Same Procedures As Over Land Power Failure-Until Water Contact 2 Apply Lateral Cyclic-To Stop Blades 3 Release Seat Belts 4 Clear Aircraft
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11 Ditching Power On POWER FAILURE OVER WATER
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1 Descend To Hover Above Water 2 Unlatch Doors 3 Allow Passengers To Exit 4 Fly To Safe Distance For Passengers 5 Switch Off-Master Battery & Alternator 6 Roll Off Throttle 7 Keep Level / Allow Aircraft To Settle 8 Pull Full Collective On Water Contact 9 Apply Lateral Cyclic-To Stop Blades 10 Release Seat Belts 11 Clear Aircraft
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Vortex Ring State is A Condition In Downward Flight In Which The Helicopter
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Decends In Its Own Vorticies
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(6) Leading Causes of the Vortex Ring State
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1 - Steep Approach 2 - Low FWD Airspeed with Less Than ETL ( 30 KIAS) 3 - High Density Altitude / High Gross Weight 4 - Low Airspeed With A Tailwind 5 - Hover Out Of OGE Ceiling 6 - Flopping (Ballooning) Auto
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(3) Recognition of the Vortex Ring State
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1 - Sudden Rapid Descent 2 - Pitching & Yawing 3 - Mushy Controls
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(3) Recovery from the Vortex Ring State
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1 - Down Collective / FWD Cyclic 2 - Once Airspeed Is Established 3 - Pull Pitch & Climb Out
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Recovery from the Vortex Ring State-Down Collective
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Reduces Vortices (Less Drag)
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Recovery from the Vortex Ring State- forward Cyclic
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Moves Helicopter In Front Of Vortices
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Vortex Ring State-3300 Rule
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Don't Loose 30 KIAS Until rate of descent Is 300 FPM
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Ground Resonance Occurs In what kind of Helicopter
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Fully Articulated Rotor System
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(7) Ground Resonance Occurs
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1 - When Blades Become Out Of Phase with Each Other 2 - Thru the Lead & Lag Hinge 3 - Used To Fix Coreolis Effect 4 - Due To Shock Contact with the Ground 5 - Rough Landing 6 - Usually In Wheeled Helicopters 7 - Ultimately Shaking the Helicopter Apart
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(2) Ground Resonance Requires
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1 - Fully Articulated Rotor System 2 - Ground Contact
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(2) Ground Resonance is caused by
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1 - Rough / Hard Landing 2 - Bad Dampeners (Make It Worse)
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(2) Ground Resonance is recovered
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1 - If Rotor RPM Is Still In the Green Arch 2 - Pick Helicopter Up and Blades Should Rephase Themselves 3 - If Rotor RPM Is Out Of the Green Arch 4 - Get It on the Ground and Shut It down Immediately
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Blowback is a by product Of
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Low Rotor RPM Blade Stall
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3 When does blowback occur
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1 - Nose Low Attitude 2 - Results In FWD CG 3 - Air Stiking The Rear Stabilizer From Underneath
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how do students try to correct blowback
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With Full Aft Cyclic
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6 what causes blowback
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1 - High Density Altitude and High Gross Weight 2 - Engine Already at Max Power 3 - More Angle of Attack = More Drag 4 - Kung Foo Grip On Throttle 5 - Holding Power Back 6 - Lazy Governor
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4 how do you recognition blowback
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1 - Left Nose Yaw 2 - Engine Quiet 3 - Low Horn & Light 4 - Tachs
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how do you recover from blowback
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Simultaneous Down Collective & lower Throttle
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3 how do you prevent a blowback
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1 - Make Sure Low rotorhorn Warning System Is Operational 2 - Make Sure Governor Is On & Working 3 - No Kung Foo Grip
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Dynamic Rollover is the tendency of the helicopter to
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Continue Rolling Past Its Critical Angle of 15 Degrees
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Dynamic rollover begins when the helicopter starts to
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pivot around its skid or wheel because of a failure to remove a tie down or skid securing device
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(4) Dynamic Rollover requires
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1 - Pivot Point 2 - Some Lift in Use 3 - Enough Pitch to Create Lift 4 - Rolling Moment
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To recover from a Dynamic Rollover
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Immediatly Down Collective
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(5) Contributing Factors a Dynamic Rollover
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1 - Poor Preflight Check of the Skids 2 - Obstacle Clearance 3 - Hover High Enough 4 - Rushed Pickup 5 - Failure to Consider Wind & CG
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Cyclic Travel Only Has __ Degrees of Travel - Therefore Opposite Cyclic Will Not Correct the Problem
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9
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(Low G) The low G condition can best be recognized by
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A feeling of weightlessness
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(Low G) When performing a zero G push-over an airplane
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Has the same lateral control as during one G flight
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(Low G) When performing a zero G push-over a helicopter
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Has less lateral control than during one G flight
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(Low G) To recover from a low G condition the pilot must apply
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Aft cyclic
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(Low G) 2 uncommanded pitch-roll-or yaw resulting from flight in trubulence
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1 - gradually apply controls to maintain rotor RPM-positive Gs-eliminate sideslip 2 - minimize cyclic control inputs/do not over control
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(Low G) 3 inadvertent encounter with mod/severe/extreme turbulence
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1 - depart area if isolated 2 - land as soon as practical
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Low G Pushover occurs Anytime The Helicopter Is
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Placed In A Weightless State
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Weightless State is referred to
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Less Than 1x The Force Of Gravity
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Low G pushover causes the
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rotor system to unload and a loss of pendular action
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3 Low G pushover in relation to tail rotor
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1 - Tail Rotor is Still Loaded 2 - Causes Roll In The Direction Of TR Thrust 3 - Right Roll
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5 Leading Causes of Low G pushover
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1 - Any Condition That Unloads The Rotor System 2 - Abrupt FWD Cyclic 3 - Leveling Off Too Quickly After A Climb 4 - Turbulance (Wind Shear) 5 - Collision Avoidence
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4 Mast Bumping is caused by
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1 - Low G maneuvers (below 0.5 g's) 2 - Rapid-large cyclic movements (especially forward) 3 - Flight near longitudinal / lateral CG limits 4 - High slope landings
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Mast Bumping In The Right Roll is caused by
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Loss Of Pendular Action and Tail Rotor Thrust
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Mast Bumping only occurs in ___ rotor systems
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underslung
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(6) Mast Bumping occurs when
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1 - Pilot Uses Hard LT Cyclic To Recover From RT Roll 2 - Since NO Pendular Action 3 - Helicopter Remains In The RT Roll 4 - While The Disc Is Tilted Full LT 5 - The Rotor Blades Then Contact The Rotor Mast On Every Revolution 6 - Ultimately Severing Rotor System
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(7) Mast Bumping Prevention
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1 - No Abrupt FWD Cyclic 2 - Slow Down For Turbulence 3 - Reduces FWD Momentum 4 - Less Nose Low Attitude 5 - Lower Tail = Less TR Thrust Vector For RT Roll 6 - Gradual Level Off After Climb 7 - Turn For Collision Avoidance
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(2) Mast Bumping recovery
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1 - Gentle Aft Cyclic To reload The Rotor System 2 - Roll Out Of The Turn
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When the rotor RPM begins to decay the engine will
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Produce less power at nearly the same torque
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During normal flight a 10% loss of RPM will result in
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10% less engine power available
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You can recover the most energy by
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Reducing your airspeed from 90 knots to 80 knots
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To recover from a low RPM situation power on at any airspeed the pilot must
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Roll on throttle and lower the collective simultaneously
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2 Right roll in low G condition
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1 - gradually apply aft cyclic to restore positive G forces and MR thrust 2 - do not apply lateral cyclic until positive G forces are established
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Aerodynamic stall occurs when
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An Airplane loses airspeed or a helicopter loses rotor RPM
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If the pilot pulls in too much pitch
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It may pull the RPM down causing a loss of power leading to rotor stall
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Low Rotor RPM (Blade Speed)
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The Slower The Blade Spins The Larger The Angle Of Attack Needed To Create The Same Amount Of Lift
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Low Rotor RPM (Drag)
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Pulling Pitch To Make More Power Creates More Drag
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Rotor Blade Stall Occurs at
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80% Plus 1% Per 1000 Ft
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During a Blade Stall all lift Is Lost-there is __ __ because there is so much drag and there Is NO aerodynamic Way To Recover
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no recovery
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During a blade stall-the __ blade will stall first
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retreating
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3 low RPM rotor stall occur can occur
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1 - Hover 2 - Autorotation 3 - Cruise
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(4) Retreating Blade Stall is Caused By
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1 - Excess Flapping compensating For Dissymetry Of Lift 2 - Leads To Exceeding The Critical AA On Retreating Side Of The Rotor System 3 - Blades Stall Starts @ The Tip 4 - because retreating blade tip Is The Lowest Down flapped Portion it works Its Way Inward
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(3) Retreating blade stall is recognized by
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1 - Deep Low Vibrations 2 - Nose Pitch Up (Gyro) 3 - left roll (retreating blade is stalling)
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(5) Leading Causes of retreating blade stall are
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1 - High FWD Airspeed 2 - Abrupt left Cyclic Turns 3 - Turbulence (Wind Shear) 4 - Tail To Head Wind 5 - Low Rotor RPM
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(2) Blade stall recovery
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1- Down Collective / Aft Cyclic 2 - Whatever Input Was Made (Take It Out)
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In relation to the wind retreating blade moves __ and advancing blades moves _ the wind
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out & into
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In relation to speed retreating blade moves __ and advancing blades moves _
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slower & faster
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In relation to position retreating blade flaps __ and advancing blades flaps _
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down & up
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In relation to angle of attack the retreating blade has __ angle of attack and advancing blades has __ angle of attack
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greater & smaller
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In a blade stall the nose pitches up because
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Gyroscopic Procession causes the Stall Displacement to Be Felt at 90 Degrees After The Stall Starts
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In a blade stall a left roll occurs because
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retreating Blade Continues To Flap Down
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2 Loss Of Tail Rotor Thrust In Forward Flight symptoms
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1 - Indicated By A Right Nose Yaw 2 - Can Not Be Corrected By Left Pedal
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5 Loss Of Tail Rotor Thrust In Forward Flight
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1 - Immediately Enter Autorotation 2 - Maintain @ Least 70 KIAS 3 - Select Landing Site 4 - Roll Off Throttle into over travel spring 5 Perform Autorotation Landing
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2 Loss Of Tail Rotor Thrust During Hover Symptoms
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1 - Indicated By A Right Nose Yaw 2 - Can Not Be Corrected By Left Pedal
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3 Loss Of Tail Rotor Thrust During Hover
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1 - Roll Off Throttle into over travel spring 2 - Allow Aircraft To Settle 3 - Raise Collective Just Before Impact
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4 types of Loss Of Tail Rotor Effectiveness
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1 - MAIN ROTOR DISC INTERFERENCE (285-315°) 2 - WEATHERCOCK STABILITY (120-240°) 3 - TAIL ROTOR VORTEX RING STATE (210-330°) 4 - LTE AT ALTITUDE
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(2) (Loss Of Tail Rotor Effectiveness) Main Rotor Disc Interference caused by
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1 - Caused By A Left Quartering Headwind 2 - Main Rotor Vorticies Are Blown Back Into The Tail Rotor
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(3) (Loss Of Tail Rotor Effectiveness) Weather Cock Instability
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1 - Caused By A Tailwind 2 - Tail Wants To Yaw With The Wind 3 - The Wind will Try To Force The Nose Into The Wind
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(2) ) (Loss Of Tail Rotor Effectiveness) Tail Rotor Vortex Ring State
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1 - Caused By A Left Crosswind 2 - Vorticies Of The Tail Rotor Get Blown Back Into The Tail Rotor
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(Loss Of Tail Rotor Effectiveness) At Altitude
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The Air Is Not Thick Enough For The Tail Rotor To Maintain Sufficiant Thrust
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(Loss Of Tail Rotor Effectiveness) Recognition
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Uncommanded Yaw
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2 (Loss Of Tail Rotor Effectiveness) Conditions
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1 - High FWD Airspeed 2 - High Power
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(3)(Loss Of Tail Rotor Effectiveness) Contributing Factors
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1 - Low Rotor RPM 2 - Tail Wind 3 - Not Paying Attention To Wind Direction
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2 (Loss Of Tail Rotor Effectiveness) Recovery
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1 - Immediate Opposite Pedal 2 - FWD Cyclic To Get Out Of Vorticies
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(Loss Of Tail Rotor Effectiveness) Prevention
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Fly Into The Wind
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MR (Main Rotor) Temp
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indicates excessive temp of MR gearbox - land immediately if noise vibration or temp rise
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MR (Main Rotor) Chip
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indicates metallic particles in MR gearbox - land immediately if noise vibration or temp rise
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5 Engine Fire During Start at Ground (Engine Starts)
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1 - Continue Cranking/10 to 15 seconds 2 - Run @ 50% To 60% For A Short Time 3 - Shut Down 4 - Extinguish 5 - Inspect
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5 Engine Fire During Start at Ground (Engine Doesn't Start)
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1 - Continue Cranking/10 to 15 seconds 2 - Shut Off Fuel 3 - Shut Off Master Battery 4 - Extinguish 5 - Inspect
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7 Engine Fire In Flight (Smells like something burnt)
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1 - Immediately Enter Auto 2 - Master Battery Off 3 - Cabin Heat Off 3 - Cabin Vent Open 4 - Engine On/Normal Landing or Engine Off/Autorotational Landing 5 - Shut Off Fuel 6 - Extinguish 7 - Inspect
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4 Electrical Fire In Flight
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1 - Master Batter Off 2 - Alternator Off 3 - Land Immediately 4 - Extinguish/Inspect
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During and Electrical Fire In Flight what two systems will be inoperative with master battery and alternator switches off
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Governor and Low RPM Warning System
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Tach Failure (1 Of 2 Tachs Fail)
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Use Remaining Tach
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2 Both Tachs Fail
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1 - Use Governor 2- Land As Soon As Practical
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(Tach Failure) Each tach-the governor-and the low RPM warning horn are on
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separate circuits
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(Tach Failure) Either the battery or the alternator can __ supply power to the tachs
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independently
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(Tach Failure) A special circuit allows the battery to supply power to the tachs even if the __ __ __ is off
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master battery switch
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3 Governor Failure
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1 - Grip Throttle Firmly 2 - Switch Gov Off 3 - Complete Flight w/ Manual Throttle Control
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To quickly descend for collision avoidance the pilot should
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Reduce collective pitch while keeping the aircraft level with the cyclic
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When crossing high tension wires the pilot should
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Always fly directly over the towers
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If you encounter unexpected severe turbulence you should
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Slow down and avoid over controlling the aircraft
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(EMERGENCY LIGHTS) TR (Tail Rotor) Chip
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indicates metallic particles in TR gearbox - land immediately if noise vibration or temp rise
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(EMERGENCY LIGHTS) Low fuel light warning light
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indicates approx one gallon of usable fuel remaining - will run out after five minutes at cruise power
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(EMERGENCY LIGHTS) Clutch Light Less Than 7 Seconds
|
Ignore - never take off with clutch light on
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(EMERGENCY LIGHTS) 4 Clutch light on more Then 7 Seconds
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1 - Pull Clutch Circuit Breaker 2 - Land Immediately 3 - Be Prepared To Auto 4 - inspect for malfunction
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(EMERGENCY LIGHTS) Alternator (ALT)
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indicates low voltage and possible alternator failure
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(EMERGENCY LIGHTS) Alternator (ALT) steps
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1 - turn off nonessential electrical equip 2 - switch ALT off and back on after on second to reset over voltage relay 3 - land as soon as possible
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(EMERGENCY LIGHTS) Flight without functioning alternator results
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in loss of electronic tachometer
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(EMERGENCY LIGHTS) Brake warning light
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rotor brake engage-disengage
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(EMERGENCY LIGHTS) Starter On warning light
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1 - immediately pull mixture to idle cut-off 2 - turn master switch off 3 - have starter motor serviced
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(EMERGENCY LIGHTS) 4 carbon monoxide light (if installed)
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1 - open nose and door vents 2 - shut off heater 3 - if hovering-land or transition to forward flight 4 - CO symptoms persist-land immediately
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(EMERGENCY LIGHTS) LOW RPM horn warning light
|
1 - restore RPM by rolling throttle on 2 - lower collective 3 - in forward flight/apply aft cyclic
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(EMERGENCY LIGHTS) 4 Oil Pressure Light
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1 - check engine tach for power loss 2 - Check oil pressure Gauge 3 - If Pressure
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3 the engine drives the main rotor through
|
a transmission and belt drive or centrifugal clutch system
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The antitorque rotor is driven from the
|
transmission
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The engine drives the __ __ which then transfers power directly to the
|
main transmission/main rotor system as well as the tail rotor
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above __ feet throttle correlation and governor are less effective - power changes should be
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4000/slow and smooth
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at __ power settings above 4000 feet the throttle is frequently __ open and __ must be controlled with collective
|
high/wide/RPM
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when operating at high density altitudes governor response rate may be __ __ to prevent overspeed during gusts pullups or when lowering collective
|
too slow
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never exceed airspeed Vne
|
up to 3000 ft density altitude-102 KIAS
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never exceed airspeed Vne
|
up to 3000 ft density altitude-102 KIAS
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max rotor speed
|
tach 104%-RPM 530
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max engine speed
|
2652 RPM 104%
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max cylinder head temperature
|
500 degrees F (206 degrees C)
|
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max oil temperature
|
245 degrees F (118 degrees C)
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oil pressure min during idle
|
25 psi red beginning
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oil pressure min during flight
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55 psi middle yellow
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oil pressure max during flight
|
95 psi red
|
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oil pressure max during start and warmup
|
115 psi red
|
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max gross weight
|
1370 lb (622 kg)
|
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min gross weight
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920 lb (417 kg)
|
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max per seat plus baggage compartment
|
240 lb (109 kg)
|
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max in baggage
|
50 lb (23 kg)
|
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min solo weight __ lbs with __ fuel or __ lbs with aux fuel
|
130 standard 135
|
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datum line is __ inches forward of main rotor shaft centerline
|
100
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prohibited ___flight
|
aerobatic
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prohibited __ cyclic __
|
low-g pushovers
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prohibited ___ selected off with exceptions of __
|
governor-(system malfuntion or emergency procedures training)
|
|
prohibited __ conidtions
|
icing
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prohibited-max operating density altitude
|
14000 ft
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prohibited-operational gages required for flight
|
alternator-rpm governor-low rotor rpm alarm-oat
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lights required for VFR operation at night 4
|
1 landing 2 navigation 3 instrument 4 anticollision
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airspeed indicator green arc
|
50 to 102 KIAS
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airspeed indicator red line
|
102 KIAS
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rotor tach upper red line
|
110%
|
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rotor tach yellow arc
|
104 to 110%
|
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rotor tach green arc
|
101 to 104%
|
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rotor tach yellow arc
|
90 to 101%
|
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rotor tach lower red line
|
90%
|
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rotor tach yellow arc
|
60 to 70%
|
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engine tach upper red arc
|
104 to 110%
|
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engine tach green arc
|
101 to 104%
|
|
engine tach lower red arc
|
90 to 101%
|
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engine tach yellow arc
|
60 to 70%
|
|
oil pressure lower red line
|
25 psi
|
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oil pressure lower yellow arc
|
25 to 55 psi
|
|
oil pressure green arc
|
55 to 95 psi
|
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oil pressure upper yellow arc
|
95 to 115 psi
|
|
oil pressure upper red line
|
115 psi
|
|
oil temperature green arc
|
75 to 245 degrees f (24 to 118 degrees C)
|
|
oil temperature red line
|
245 degrees F (118 degress C)
|
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Cylinder head temperature green arc
|
200 to 500 F (93 to 260 C)
|
|
Cylinder head temperature red arc
|
500 F (260 C)
|
|
manifold pressure yellow arc
|
19.6 to 24.1 in Hg
|
|
manifold pressure red line
|
24.1 in Hg
|
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carburetor air temperature yellow arch
|
-15 to 5 C
|
|
below 18 in manifold pressure
|
ignore gage and apply full carb heat
|
|
prohibited solo flight when surface winds exceed __ knots
|
25 gusts
|
|
prohibited solo flight when surface wind gust spreads exceed __ knots
|
15 knots
|
|
prohibited flight turbulences 3
|
1 moderate 2 severe 3 extreme
|
|
upon encountering turbulence adjust forward airspeed to between __ knots and __ Vne but no lower than __ knots
|
60 07 57
|
|
moderate causes changes in 3
|
1 altitude or attitude 2 variations in indicated airspeed 3 strain against the seat belts
|
|
Main Rotor - Articulation
|
free to teeter and cone-rigid inplane
|
|
main rotor-tip speed
|
approx 100% RPM - 672 FPS
|
|
tail rotor - articulation
|
free to teeter - rigid inplane
|
|
tail rotor-tip speed
|
approx 100% RPM - 599 FPS
|
|
drive system - engine to upper sheave
|
two double vee-belts with 85361 speed reducing ratio
|
|
drive system - upper sheave to drive line
|
sprag type overrunning clutch
|
|
drive system - drive line to main rotor spiral-bevel gears with
|
1147 speed reducing ratio
|
|
drive system - drive line to tail rotor spiral-bevel gears with
|
32 speed increasing ratio
|
|
powerplant model
|
0-360-J2A
|
|
Rotor Max Speed Tach __ and Actual RPM __
|
104% / 530
|
|
Rotor Mim Speed Tach __ and Actual RPM __
|
101% / 515
|
|
Power Off Rotor Max Speed Tach __ and Actual RPM __
|
110% / 561
|
|
Power Off Rotor Mim Speed Tach __ and Actual RPM __
|
90% / 495
|
|
normal rating _ BHP (derated)
|
145
|
|
normal rating approx __ RPM
|
2700
|
|
max continuous rating __ BHP approx
|
124
|
|
max continuous rating ___ RPM Tach percent __
|
2652 104%
|
|
5 minute takeoff rating __ BHP
|
131
|
|
5 minute takeoff rating __ RPM
|
2652
|
|
main rotor system is able to
|
Flap and Feather
|
|
4 Cone Dimensions
|
1 - SemiRidgid 2 - Underslung 3 - Asymetrical (w/ Twist) 4 - 25'2 Diameter
|
|
Electrical System
|
-12 Volt Battery- 60 Amp/14 Volt Alternator
|
|
Height
|
107 in
|
|
Overall length
|
345 in
|
|
Cabin Height
|
69 in
|
|
Cabin Width
|
44 in
|
|
MR Blade twist
|
-8 degrees
|
|
MR Blade Chord
|
7.2 inches
|
|
TR Diameter
|
42 inches
|
|
TR Blade Chord
|
4 inches
|
|
TR Blade twist
|
0 degrees
|
|
Blade Stall occurs at
|
80% / 1% per thousand feet
|
|
BLADE STALL
|
The condition of the rotor blade when it is operating at an angle of attack greater than the maximum angle of lift
|
|
BLOWBACK
|
The tendency of the rotor disc to tilt aft in forward flight as a result of flapping
|
|
CORIOLIS EFFECT
|
The tendency of a rotor blade to increase or decrease its velocity in its plane of rotation when the center of mass moves closer or further from the axis of rotation
|
|
DISSYMMETRY OF LIFT
|
The unequal lift across the rotor disc resulting from the difference in the velocity of air over the advancing blade half and retreating blade half of the rotor disc area
|
|
TRANSLATING TENDENCY
|
Also called tail rotor drift
|
|
T R A N S V E R S E - F L O W EFFECT
|
A condition of increased drag and decreased lift in the aft portion of the rotor disc caused by the air having a greater induced velocity and angle in the aft portion of the disc
|
|
Translational lift
|
present with any horizontal flow of air across the rotor.
|