S-92/Emergency Procedures - Revision history

Kelly at 01:14, 3 August 2021

2021-08-03T01:14:37Z

Kelly: /* VORTEX RING STATE */

2021-08-02T13:14:29Z

‎VORTEX RING STATE

Kelly: /* SINGLE ENGINE OPERATION */

2021-08-02T13:14:20Z

‎SINGLE ENGINE OPERATION

Kelly: /* SINGLE ENGINE OPERATION */

2021-08-02T13:14:06Z

‎SINGLE ENGINE OPERATION

Kelly: /* SINGLE ENGINE OPERATION */

2021-08-02T13:13:50Z

‎SINGLE ENGINE OPERATION

Kelly: /* VORTEX RING STATE */

2021-08-02T13:11:39Z

‎VORTEX RING STATE

Kelly: /* LOW-RPM CONDITION */

2021-08-02T13:11:25Z

‎LOW-RPM CONDITION

Kelly: /* HOVERING AUTOROTATION */

2021-08-02T13:11:10Z

‎HOVERING AUTOROTATION

Kelly: /* AUTOROTATION */

2021-08-02T13:11:00Z

‎AUTOROTATION

Kelly: Created page with "===AUTOROTATION=== In the event of a power failure above 50 feet AGL,, apply the following procedures: Lower collective completely. Monitor rotor RPM in descent and raise coll..."

2021-08-02T13:10:40Z

Created page with "===AUTOROTATION=== In the event of a power failure above 50 feet AGL,, apply the following procedures: Lower collective completely. Monitor rotor RPM in descent and raise coll..."

New page

===AUTOROTATION===
In the event of a power failure above 50 feet AGL,, apply the following procedures:
Lower collective completely. Monitor rotor RPM in descent and raise collective slightly if rotor RPM becomes too high. You may need right pedal as you lower the collective due to the reduction in torque from the engine.
Maintain a forward speed of 50-60 mph until approximately 50 feet AGL.
At approximately 50 feet AGL, begin a cyclic flare by pulling back on the cyclic.
At about 10 feet AGL, level the helicopter and pull collective to slow down the descent.
===HOVERING AUTOROTATION===
In the event of a power failure during a hover, the following procedures apply:
Apply immediate right pedal to hold heading and maintain collective until helicopter begins to sink
Apply full up collective as helicopter begins to sink
Lower collective once helicopter is fully on the ground
===LOW-RPM CONDITION===
Low rotor RPM is a dangerous condition that can occur when RPM is not carefully monitored or maximum power limitations are not observed. If the RPM is allowed to decay too far, recovery may be impossible. This aircraft is equipped with a low RPM warning system consisting of a warning light and a horn. The light and horn will activate when rotor RPM is below 93% whenever the collective is not full down.
In the event of a low RPM condition, the pilot should lower the collective until normal RPM is achieved. If the helicopter is too low or over unsuitable terrain, the pilot can attempt to "milk" the collective, with small up-down movements of the collective in an attempt to recover rotor RPM. However, the best approach is to not get into a low RPM condition in the first place.

===VORTEX RING STATE===
Vortex ring state occurs when a helicopter descends into its own downwash resulting in a loss of lift. It can occur when attempting to apply power during a vertical descent. To recover, the pilot should lower the collective and apply forward cyclic to regain airspeed. Since the recovery can require a significant loss of altitude, the best practice is to avoid encountering this condition, particularly when close to the ground. Practice vortex ring state recovery should be performed with sufficient altitude to be able to complete the maneuver.
See the SL Helicopter Flying Handbook for a more complete description of vortex ring state.

===SINGLE ENGINE OPERATION===
In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.

← Older revision		Revision as of 01:14, 3 August 2021
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		+	<span class=sa-section>SECTION 3. EMERGENCY PROCEDURES</span>
		+
	===AUTOROTATION===		===AUTOROTATION===
	In the event of a power failure above 50 feet AGL,, apply the following procedures:		In the event of a power failure above 50 feet AGL,, apply the following procedures:

← Older revision		Revision as of 13:14, 2 August 2021
Line 24:		Line 24:
	===SINGLE ENGINE OPERATION===		===SINGLE ENGINE OPERATION===
	In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.		In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.
−	~~[[Shergood Flight System]]~~

@@ Line 24: / Line 24: @@
 ===SINGLE ENGINE OPERATION===
 In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.
-[[Shergood_Flight_System]]
+[[Shergood Flight System]]

← Older revision		Revision as of 13:13, 2 August 2021
Line 24:		Line 24:
	===SINGLE ENGINE OPERATION===		===SINGLE ENGINE OPERATION===
	In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.		In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.
		+	[[Shergood_Flight_System]]

@@ Line 20: / Line 20: @@
 Vortex ring state occurs when a helicopter descends into its own downwash resulting in a loss of lift. It can occur when attempting to apply power during a vertical descent. To recover, the pilot should lower the collective and apply forward cyclic to regain airspeed. Since the recovery can require a significant loss of altitude, the best practice is to avoid encountering this condition, particularly when close to the ground. Practice vortex ring state recovery should be performed with sufficient altitude to be able to complete the maneuver.
-See the SL Helicopter Flying Handbook for a more complete description of vortex ring state.
+See the [[Shergood Flight System]] for a more complete description of vortex ring state.
 ===SINGLE ENGINE OPERATION===
 In the event of an engine failure, the S-92 is capable of sustained flight on one engine, however much more care must be taken to avoid low RPM conditions. The torque gauge on the PFD should be monitored while raising collective with care not to exceed the blue line.

@@ Line 14: / Line 14: @@
 ===LOW-RPM CONDITION===
 Low rotor RPM is a dangerous condition that can occur when RPM is not carefully monitored or maximum power limitations are not observed. If the RPM is allowed to decay too far, recovery may be impossible. This aircraft is equipped with a low RPM warning system consisting of a warning light and a horn. The light and horn will activate when rotor RPM is below 93% whenever the collective is not full down.
 In the event of a low RPM condition, the pilot should lower the collective until normal RPM is achieved. If the helicopter is too low or over unsuitable terrain, the pilot can attempt to "milk" the collective, with small up-down movements of the collective in an attempt to recover rotor RPM. However, the best approach is to not get into a low RPM condition in the first place.

@@ Line 8: / Line 8: @@
 ===HOVERING AUTOROTATION===
 In the event of a power failure during a hover, the following procedures apply:
-Apply immediate right pedal to hold heading and maintain collective until helicopter begins to sink
+#Apply immediate right pedal to hold heading and maintain collective until helicopter begins to sink
-Apply full up collective as helicopter begins to sink
+#Apply full up collective as helicopter begins to sink
-Lower collective once helicopter is fully on the ground
+#Lower collective once helicopter is fully on the ground
 ===LOW-RPM CONDITION===
 Low rotor RPM is a dangerous condition that can occur when RPM is not carefully monitored or maximum power limitations are not observed. If the RPM is allowed to decay too far, recovery may be impossible. This aircraft is equipped with a low RPM warning system consisting of a warning light and a horn. The light and horn will activate when rotor RPM is below 93% whenever the collective is not full down.

@@ Line 1: / Line 1: @@
 ===AUTOROTATION===
 In the event of a power failure above 50 feet AGL,, apply the following procedures:
-Lower collective completely. Monitor rotor RPM in descent and raise collective slightly if rotor RPM becomes too high. You may need right pedal as you lower the collective due to the reduction in torque from the engine.
+#Lower collective completely. Monitor rotor RPM in descent and raise collective slightly if rotor RPM becomes too high. You may need right pedal as you lower the collective due to the reduction in torque from the engine.
-Maintain a forward speed of 50-60 mph until approximately 50 feet AGL.
+#Maintain a forward speed of 50-60 mph until approximately 50 feet AGL.
-At approximately 50 feet AGL, begin a cyclic flare by pulling back on the cyclic.
+#At approximately 50 feet AGL, begin a cyclic flare by pulling back on the cyclic.
-At about 10 feet AGL, level the helicopter and pull collective to slow down the descent.
+#At about 10 feet AGL, level the helicopter and pull collective to slow down the descent.
 ===HOVERING AUTOROTATION===
 In the event of a power failure during a hover, the following procedures apply: