Autorotations/Simulated Engine Failure Procedures Flashcards
When should SNA wave-off by when executing a simulated EP while away from suitable outlying fields (channel work/on the way to outlying fields…)?
By 300’ AGL and no slower than 50KIAS
When are simulated engine failures at altitude prohibited?
- At gross weights above 2900 lbs
- When dry DA exceeds 1800’
What are the limitations on cut-guns?
- Should only be executed when aircraft HDG is within 45° of the windline
- Shall not be conducted when gross weight exceeds 2900 lbs
What are the limits for practice autorotations?
- Winds must not be less than 5kts
- Dry DA cannot exceed 2500’
Required build-up maneuvers prior to a power-recovery autorotation:
- Sliding landing
- Hover cut-gun
- Taxi cut-gun
Required build-up maneuvers prior to a full (power-off recovery) autorotation:
- Power recovery autorotation
- Power recovery autorotation followed by a simulated engine failure in a hover taxi
Practice Autorotation Entry Parameters (Altitude)
For a 90° Auto:
* 600’ AGL
For a 180° Auto:
* 700’ AGL
Fuel requirements for practice full autorotation:
Fuel load shall be 45gal or less (for a TH-57B)
Fuel load shall be 40gal or less (for a TH-57C)
Required wave-off criteria for practice autorotations:
- Airpseed falls below 55 KIAS prior to the 100’ gate
- Either crewmember misses a required callout below 200’ AGL
Practice Autorotation Set-Up Parameters
“Lane”
* Ensure that 90 or 180 auto lane is clear of obstacles
“Lock”
* Lock the shoulder harness
“Sock”
* Check the windsock to ensure that there is no tailwind component
Practice Autorotation Entry Parameter Procedure
- “600’ & 70KIAS”
- “VSI at or below zero”
- “Aircraft in trim”
Practice Autorotation/Simulated Engine Failure Entry Procedure
“Down”
* Smoothly lower collective to full down in no less than two seconds
“Right”
* Anticipate the need for right pedal
“Transition”
* Use cyclic to establish a 50-72 KIAS descending attitude
“Turn”
* Initiate a turn to courseline
* For a 180° auto, include “Over 1, Back 1” (for cyclic) and “Up 1” (for collective)
What are the desired airspeed and Nr ranges?
- 50-60 KIAS (We want 60KIAS)
- 94-95% Nr is optimal but maintain between 90-107% Nr
Autorotation/Simulated Engine Failure Scan Procedure
Attitude
* Trim to maintain 50-60 KIAS (We want 60 KIAS)
Nr
* Use collective to maintain Nr between 90-107% Nr
Ball
* Keep the ball centered
What are the required callout gates?
Three: 200’ AGL, 150’ AGL, 100’ AGL
200’ AGL Callout Procedure
“200’ on course-line”
Ensure that you’re wings level (or you have the proper crosswind input) and on course-line
150’ AGL Callout Procedure
“150’ collective full down”
Ensure that the collective is full down
100’ AGL Callout Procedure
“100’ flare”
At 75-100’ AGL, apply aft cyclic to flare to reduce the rate of descent, reduce groundspeed, and increase Nr
What do you do after the 100’ AGL callout gate?
Confirm the position of the twist grip
Power Recovery Twist Grip Confirmation Procedure
“Twist grip full open.”
- The PNAC will confirm the position w/ “Roger, twist grip full open”
Power-Off Twist Grip Confirmation Procedure
“Twist grip flight idle.”
- The PNAC will confirm the position w/ “Roger, twist grip flight idle.”
Practice Autorotation Landing Procedure
“10-15’, pull”
* Increase collective to arrest rate of descent
“Pause”
* Pause momentarily to slow groundspeed to 0 10 10kts
“Level”
* Apply forward cyclic to achieve a 5ft. level skid attiude w/ nose aligned in the direction of travel
Power-On Recovery:
“Taxi, Taxi, Taxi”
Power-Off Recovery:
“Cushion, Cushion, Cushion”
For a simulated engine failure, what do you call for after entry into the maneuver?
“Lock”
Lock shoulder harness
“Talk”
PNAC simulates mayday call
“Squawk”
PNAC simulates sqauwking 7700
“Restart”
PNAC simulates excuting engine restart in flight procedure
